CN110512205A - A kind of preparation method of iron-based amorphous coating - Google Patents
A kind of preparation method of iron-based amorphous coating Download PDFInfo
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- CN110512205A CN110512205A CN201910840475.4A CN201910840475A CN110512205A CN 110512205 A CN110512205 A CN 110512205A CN 201910840475 A CN201910840475 A CN 201910840475A CN 110512205 A CN110512205 A CN 110512205A
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- 238000000576 coating method Methods 0.000 title claims abstract description 57
- 239000011248 coating agent Substances 0.000 title claims abstract description 54
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims description 9
- 239000010935 stainless steel Substances 0.000 claims abstract description 44
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 44
- 238000004372 laser cladding Methods 0.000 claims abstract description 27
- 239000002245 particle Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 52
- 229910052786 argon Inorganic materials 0.000 claims description 26
- 238000003466 welding Methods 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 8
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011863 silicon-based powder Substances 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 238000012512 characterization method Methods 0.000 claims description 5
- 238000000498 ball milling Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 claims description 2
- 230000008646 thermal stress Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000010790 dilution Methods 0.000 abstract description 2
- 239000012895 dilution Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
本发明涉及一种铁基非晶涂层的制备方法，是针对不锈钢板板耐磨性能差、工作寿命短的情况，在不锈钢表面激光熔覆铁基非晶涂层，以提高不锈钢板的表面硬度、耐磨性能及非晶含量，经激光重熔后的铁基非晶涂层硬度达750HV，非晶涂层的非晶含量达到54%；激光重熔可修复涂层表面的裂纹、孔洞和未熔固体颗粒，从而减小涂层稀释率，提高涂层质量，提升非晶比例。
The invention relates to a method for preparing an iron-based amorphous coating, aiming at the situation of poor wear resistance and short working life of stainless steel plates, laser cladding iron-based amorphous coatings on the surface of stainless steel to improve the surface of stainless steel plates Hardness, wear resistance and amorphous content, the hardness of the iron-based amorphous coating after laser remelting reaches 750HV, and the amorphous content of the amorphous coating reaches 54%; laser remelting can repair cracks and holes on the coating surface And unmelted solid particles, thereby reducing the coating dilution rate, improving the coating quality, and increasing the proportion of amorphous.
Description
技术领域technical field
本发明涉及一种铁基非晶涂层的制备方法，属于非晶涂层制备及应用的技术领域。The invention relates to a method for preparing an iron-based amorphous coating, which belongs to the technical field of preparation and application of the amorphous coating.
背景技术Background technique
近年来，激光技术得到了迅速发展，激光熔覆作为表面改性技术的一种，以激光束作为热源，在基体材料表面熔覆一层增强相材料，从而将基体材料与增强相材料冶金结合在一起，大幅度提高材料的使用寿命。激光熔覆技术具有瞬间加热温度高、冷却速度快、对工件热影响小、熔覆层与基体结合强度高的优点，已成为一项绿色高效、具有巨大潜在经济效益的智能制造/再制造技术。In recent years, laser technology has developed rapidly. As a kind of surface modification technology, laser cladding uses a laser beam as a heat source to clad a layer of reinforcement phase material on the surface of the matrix material, thereby metallurgically combining the matrix material and the reinforcement phase material. Together, the service life of the material is greatly improved. Laser cladding technology has the advantages of high instantaneous heating temperature, fast cooling speed, small thermal impact on the workpiece, and high bonding strength between the cladding layer and the substrate. It has become a green and efficient intelligent manufacturing/remanufacturing technology with huge potential economic benefits. .
非晶材料由于没有晶界、析出相和成分偏析等晶体材料的缺陷，与同等成分的晶体合金涂层相比，具有优异的硬度、强度、抗腐蚀和抗磨损性能。但是非晶材料的制备需要快速凝固工艺，对工艺条件要求苛刻，使得制备技术难度大，以及室温脆性断裂等缺点限制了其工业应用。以涂层形式应用的性能独特的非晶材料不仅克服了块体非晶材料的缺点，也使非晶材料优异的性能得到极好的延伸，使其在工业上大范围的应用成为可能。Compared with crystal alloy coatings with the same composition, amorphous materials have excellent hardness, strength, corrosion resistance and wear resistance due to the lack of defects in crystal materials such as grain boundaries, precipitated phases, and composition segregation. However, the preparation of amorphous materials requires a rapid solidification process, which requires harsh process conditions, making the preparation technology difficult, and the disadvantages of brittle fracture at room temperature limit its industrial application. Amorphous materials with unique properties applied in the form of coatings not only overcome the shortcomings of bulk amorphous materials, but also extend the excellent performance of amorphous materials, making it possible for a wide range of industrial applications.
目前，对激光熔覆非晶合金涂层材料的研究大多限于工艺参数和性能表征方面的探索，且实际推广应用进程迟缓，其原因在于，高非晶含量的产生需要极高的凝固冷却速率，但骤冷产生的高残余应力以及与基体的热膨胀系数差异等原因易导致熔覆层开裂，“高非晶含量”和“无裂纹”这两个相对性能间的矛盾始终无法得到有效解决。为解决裂纹问题，目前多采用提高热输入、添加硬质强化相、预热基板等方法，但这些方法均不利于非晶相的产生及其含量的提高，而且还带来了高性能、高成本、工艺复杂、过程繁琐、制备效率低的缺点，这一技术还在科学研究中。At present, the research on laser cladding amorphous alloy coating materials is mostly limited to the exploration of process parameters and performance characterization, and the actual promotion and application process is slow. The reason is that the generation of high amorphous content requires extremely high solidification cooling rate. However, the high residual stress generated by quenching and the difference in thermal expansion coefficient with the substrate can easily lead to cracking of the cladding layer, and the contradiction between the two relative properties of "high amorphous content" and "crack-free" has not been effectively resolved. In order to solve the problem of cracks, methods such as increasing heat input, adding hard strengthening phases, and preheating substrates are currently used, but these methods are not conducive to the generation of amorphous phases and the increase of their content, and also bring high performance, high Due to the disadvantages of cost, complex process, cumbersome process and low preparation efficiency, this technology is still under scientific research.
发明内容Contents of the invention
发明目的purpose of invention
本发明的目的是针对背景技术的情况，采用激光熔覆技术，在不锈钢表面激光熔覆并进行激光重熔制备铁基非晶涂层，得到非晶涂层材料，改善钢铁零件表面摩擦磨损性能，扩大其应用范围。The purpose of the present invention is to use laser cladding technology to prepare iron-based amorphous coating on the surface of stainless steel by laser cladding and laser remelting in view of the background technology, so as to obtain amorphous coating material and improve the surface friction and wear properties of steel parts , to expand its scope of application.
技术方案Technical solutions
本发明使用的材料包括：不锈钢板、铁粉、铝粉、铬粉、钨粉、硼粉、硅粉、氩气、无水乙醇；The materials used in the present invention include: stainless steel plate, iron powder, aluminum powder, chromium powder, tungsten powder, boron powder, silicon powder, argon gas, absolute ethanol;
不锈钢板：100mm×100mm×20mmStainless steel plate: 100mm×100mm×20mm
铁粉：Fe，粒度150目，纯度99.8%，固态颗粒，52g±0.1gIron powder: Fe, particle size 150 mesh, purity 99.8%, solid particles, 52g±0.1g
铝粉：Al，粒度200目，纯度99.9%，固态颗粒，22g±0.1gAluminum powder: Al, particle size 200 mesh, purity 99.9%, solid particles, 22g±0.1g
铬粉：Cr，粒度200目，纯度99.8%，固态颗粒，17g±0.1gChromium powder: Cr, particle size 200 mesh, purity 99.8%, solid particles, 17g±0.1g
钨粉：W，粒度100目，纯度99.6%，固态颗粒，5g±0.1gTungsten powder: W, particle size 100 mesh, purity 99.6%, solid particles, 5g±0.1g
硼粉：B，粒度100目，纯度99.9%，固态颗粒，3g±0.1gBoron powder: B, particle size 100 mesh, purity 99.9%, solid particles, 3g±0.1g
硅粉：Si，粒度100目，纯度99.8%，固态颗粒，1g±0.1gSilicon powder: Si, particle size 100 mesh, purity 99.8%, solid particles, 1g±0.1g
氩气：Ar，纯度99.99%，气体，800000cm3±100cm3 Argon: Ar, purity 99.99%, gas, 800000cm 3 ±100cm 3
无水乙醇：C2H5OH，纯度99.5%，液体，2000mL±10mLAbsolute ethanol: C 2 H 5 OH, purity 99.5%, liquid, 2000mL±10mL
激光熔覆焊接方法如下：The laser cladding welding method is as follows:
（1）处理不锈钢基体(1) Treatment of stainless steel substrate
①将不锈钢板置于钢质平板上，用200目砂纸打磨不锈钢板周边及其正反表面，去除表面氧化物，使基体表面粗糙度达Ra6.3-12.6μm；① Place the stainless steel plate on a steel plate, and use 200 mesh sandpaper to polish the periphery of the stainless steel plate and its front and back surfaces to remove surface oxides, so that the surface roughness of the substrate reaches Ra6.3-12.6μm;
②清洗，用无水乙醇清洗不锈钢板周边及正反表面，去除基体表面污垢，使基体表面洁净；②Cleaning, cleaning the periphery of the stainless steel plate and the front and back surfaces with absolute ethanol to remove the dirt on the surface of the substrate and make the surface of the substrate clean;
③干燥，将不锈钢板放入加热炉中进行预热至100℃处理一小时，消除水分和湿气及减少热应力；③Drying, put the stainless steel plate into the heating furnace and preheat it to 100°C for one hour to eliminate water and humidity and reduce thermal stress;
（2）配粉(2) Mixing powder
将铁粉52g±0.1g、铝粉22g±0.1g、铬粉17g±0.1g、钨粉5g±0.1g、硼粉3g±0.1g和硅粉1g±0.1g，置于球磨罐内，球磨180min，球磨转数300r/min得到涂层粉末；Put 52g±0.1g of iron powder, 22g±0.1g of aluminum powder, 17g±0.1g of chromium powder, 5g±0.1g of tungsten powder, 3g±0.1g of boron powder and 1g±0.1g of silicon powder into the ball mill tank, and ball mill 180min, ball milling speed 300r/min obtains coating powder;
（3）激光熔覆焊接(3) Laser cladding welding
不锈钢板表面的激光熔覆是在激光器上进行的；The laser cladding on the surface of the stainless steel plate is carried out on the laser;
①将不锈钢板置于激光器的工作台上，正面朝上，固定；① Place the stainless steel plate on the laser workbench, face up, and fix it;
②将氩气喷嘴对准工作台上的不锈钢板，并固定；②Aim the argon nozzle at the stainless steel plate on the workbench and fix it;
③调整好激光焊接机的激光功率1000W~2000W、光斑直径19mm×1.5mm、激光扫描速度5mm/s~7mm/s；③ Adjust the laser power of the laser welding machine to 1000W~2000W, the spot diameter to 19mm×1.5mm, and the laser scanning speed to 5mm/s~7mm/s;
④将球磨得到的涂层粉末放置于送粉器中，打开氩气开关；④ Put the coating powder obtained by ball milling into the powder feeder, and turn on the argon gas switch;
⑤同步开启激光器和送粉器，激光束对准不锈钢板进行同步送粉扫描焊接，其中氩气流量为100cm3/min；⑤ Turn on the laser and powder feeder at the same time, aim the laser beam at the stainless steel plate for synchronous powder feeding and scanning welding, in which the argon gas flow rate is 100cm 3 /min;
⑥待激光熔覆涂层冷却至室温后，同步开启激光器和送粉器，激光束对准不锈钢板上的涂层进行同步送粉、激光重熔，激光重熔过程中采用激光功率3000W和扫描速度10mm/s，其中保护气氩气流量为100cm3/min；⑥ After the laser cladding coating is cooled to room temperature, the laser and powder feeder are turned on simultaneously, and the laser beam is aimed at the coating on the stainless steel plate for synchronous powder feeding and laser remelting. During the laser remelting process, laser power 3000W and scanning The speed is 10mm/s, and the protective gas argon flow rate is 100cm 3 /min;
⑦关掉激光焊接机及氩气瓶，使不锈钢板及制得的非晶涂层自然冷却至25℃；⑦Turn off the laser welding machine and the argon cylinder, and let the stainless steel plate and the prepared amorphous coating cool down to 25°C naturally;
⑧清洗，焊接后用无水乙醇进行清洗，清洗后晾干；⑧ Cleaning, cleaning with absolute ethanol after welding, and drying after cleaning;
（4）检测、分析、表征(4) Detection, analysis, characterization
对激光熔覆的不锈钢板进行检测分析表征；Detection, analysis and characterization of laser cladding stainless steel plates;
用X射线衍射仪进行XRD成分分析；Carry out XRD component analysis with X-ray diffractometer;
用扫描电子显微镜进行SEM金相分析：SEM Metallographic Analysis with Scanning Electron Microscope:
用维氏硬度仪测定维氏硬度；Determination of Vickers hardness with Vickers hardness tester;
结论：激光重熔的不锈钢板表面的非晶涂层的硬度达到750HV，制备的非晶涂层非晶含量达到54%。Conclusion: The hardness of the amorphous coating on the surface of the laser remelted stainless steel plate reaches 750HV, and the amorphous content of the prepared amorphous coating reaches 54%.
有益效果Beneficial effect
本发明与背景技术相比具有明显的先进性，是针对不锈钢板板耐磨性能差、工作寿命短的情况，在不锈钢表面激光熔覆铁基非晶涂层，以提高不锈钢板的表面硬度、耐磨性能及非晶含量，经激光重熔后的铁基非晶涂层非晶含量达到54%，硬度达到750HV。激光重熔可修复涂层表面的裂纹、孔洞和未熔固体颗粒，减小涂层稀释率，提高了涂层质量，提升了非晶比例。此制备方法工艺先进，技术参数精确，是先进的铁基非晶涂层的制备方法。Compared with the background technology, the present invention has obvious advancement, and aims at the situation of poor wear resistance and short working life of the stainless steel plate, laser cladding iron-based amorphous coating on the surface of the stainless steel to improve the surface hardness of the stainless steel plate, Wear resistance and amorphous content, after laser remelting, the iron-based amorphous coating has an amorphous content of 54% and a hardness of 750HV. Laser remelting can repair cracks, holes and unmelted solid particles on the surface of the coating, reduce the dilution rate of the coating, improve the quality of the coating, and increase the proportion of amorphous. The preparation method has advanced technology and precise technical parameters, and is an advanced preparation method of the iron-based amorphous coating.
附图说明Description of drawings
图1 不锈钢板表面激光熔覆焊接状态图Fig. 1 Laser cladding welding status diagram on the surface of stainless steel plate
图2 铁基非晶涂层的XRD图Fig.2 XRD pattern of iron-based amorphous coating
图3 铁基非晶涂层扫描形貌图Fig.3 Scanning topography of iron-based amorphous coating
图4 铁基非晶涂层维氏硬度图。Fig. 4 Vickers hardness diagram of iron-based amorphous coating.
图中所示，附图标记清单如下：As shown in the figure, the list of reference signs is as follows:
1、支撑臂， 2、工作臂，3、激光熔覆焊枪，4、氩气管，5、送粉器，6、氩气瓶，7、不锈钢板，8、工作台，9、升降台座，10、非晶涂层。1. Support arm, 2. Working arm, 3. Laser cladding welding torch, 4. Argon gas tube, 5. Powder feeder, 6. Argon gas bottle, 7. Stainless steel plate, 8. Workbench, 9. Lifting platform, 10 , Amorphous coating.
具体实施方式Detailed ways
以下结合附图对本发明做进一步说明：The present invention will be further described below in conjunction with accompanying drawing:
图1所示，为不锈钢板表面激光熔覆焊接状态图，各部位置、连接关系要正确，安装牢固。As shown in Figure 1, it is a state diagram of laser cladding welding on the surface of a stainless steel plate. The position and connection relationship of each part must be correct and the installation should be firm.
激光焊机为立式，在激光焊机的中部为支撑臂1，在支撑臂1的右上部为工作臂2，在工作臂2的右端部设有激光熔覆焊枪3、氩气管4，氩气管4连接氩气瓶6，氩气管与氩气瓶中间设有有送粉器5；在激光焊机的下部设有升降台座9，在升降台座9上部设有工作台8，在工作台8上为不锈钢板7，不锈钢板7上部为非晶涂层10。The laser welding machine is vertical, the middle part of the laser welding machine is the support arm 1, the upper right part of the support arm 1 is the working arm 2, and the right end of the working arm 2 is equipped with a laser cladding welding torch 3, an argon gas tube 4, and an argon gas pipe 4. The air pipe 4 is connected to the argon gas cylinder 6, and a powder feeder 5 is arranged between the argon gas pipe and the argon gas cylinder; a lifting platform 9 is provided at the lower part of the laser welding machine, and a workbench 8 is arranged on the upper part of the lifting platform 9, and a workbench 8 is arranged on the workbench 8 The upper part is a stainless steel plate 7, and the upper part of the stainless steel plate 7 is an amorphous coating 10.
图2所示，为铁基非晶涂层的XRD图，曲线1为激光熔覆制备的铁基非晶涂层，曲线2为激光重熔后得到的铁基非晶涂层，从图中可看出，激光熔覆制得的非晶涂层非晶相和晶体相并存，有少量馒头峰，激光重熔制得的非晶涂层馒头峰比例明显提高，说明激光重熔后非晶含量明显提高。As shown in Figure 2, it is the XRD pattern of the iron-based amorphous coating. Curve 1 is the iron-based amorphous coating prepared by laser cladding, and curve 2 is the iron-based amorphous coating obtained after laser remelting. From the figure It can be seen that the amorphous and crystalline phases of the amorphous coating produced by laser cladding coexist, and there are a small amount of steamed bread peaks. content significantly increased.
图3所示，为铁基非晶涂层扫描形貌图，图中所示，（a）为激光熔覆制备的铁基非晶涂层，（b）为激光重熔后得到的铁基非晶涂层，从图中可看出，平整无晶界区域为非晶相，激光熔覆制得的非晶涂层有非晶相和晶体相并存，激光重熔制得的非晶涂层，非晶含量明显提高。Figure 3 shows the scanning topography of the iron-based amorphous coating. As shown in the figure, (a) is the iron-based amorphous coating prepared by laser cladding, and (b) is the iron-based amorphous coating obtained after laser remelting. Amorphous coating, as can be seen from the figure, the flat area without grain boundaries is an amorphous phase, the amorphous coating made by laser cladding has both amorphous and crystalline phases, and the amorphous coating made by laser remelting layer, the amorphous content is significantly increased.
图4所示，为铁基非晶涂层涂层维氏硬度图，从图中可看出，基体维氏硬度200HV，激光熔覆后得到的非晶涂层维氏硬度660HV，激光重熔制得的非晶涂层维氏硬度750HV。As shown in Figure 4, it is the Vickers hardness diagram of the iron-based amorphous coating coating. It can be seen from the figure that the Vickers hardness of the substrate is 200HV, and the Vickers hardness of the amorphous coating obtained after laser cladding is 660HV. The obtained amorphous coating has a Vickers hardness of 750HV.
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| CN110863198A (en) * | 2019-12-16 | 2020-03-06 | 芜湖点金机电科技有限公司 | Metal powder feeding device for part repair based on laser cladding technology |
| CN112857271A (en) * | 2021-01-08 | 2021-05-28 | 中国科学院力学研究所 | Method for judging stability of laser cladding process |
| CN113564585A (en) * | 2021-08-03 | 2021-10-29 | 西安交通大学 | A kind of gradient composite amorphous iron-based coating and preparation method thereof |
| CN114016019A (en) * | 2021-11-05 | 2022-02-08 | 广东海洋大学 | Iron-based amorphous coating and preparation method and application thereof |
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| CN110079798A (en) * | 2019-05-08 | 2019-08-02 | 中北大学 | A method of in titanium alloy sheet surface laser cladding titanium-chromium-aluminum-silicon nickel high-entropy alloy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110863198A (en) * | 2019-12-16 | 2020-03-06 | 芜湖点金机电科技有限公司 | Metal powder feeding device for part repair based on laser cladding technology |
| CN112857271A (en) * | 2021-01-08 | 2021-05-28 | 中国科学院力学研究所 | Method for judging stability of laser cladding process |
| CN112857271B (en) * | 2021-01-08 | 2022-03-11 | 中国科学院力学研究所 | A method for judging the stability of laser cladding process |
| CN113564585A (en) * | 2021-08-03 | 2021-10-29 | 西安交通大学 | A kind of gradient composite amorphous iron-based coating and preparation method thereof |
| CN115141993A (en) * | 2021-09-08 | 2022-10-04 | 武汉苏泊尔炊具有限公司 | Method for manufacturing cookware |
| CN114016019A (en) * | 2021-11-05 | 2022-02-08 | 广东海洋大学 | Iron-based amorphous coating and preparation method and application thereof |
| CN114959694A (en) * | 2022-06-27 | 2022-08-30 | 中南大学湘雅医院 | An abdominal wall cutting manipulator |
| CN114959694B (en) * | 2022-06-27 | 2023-11-17 | 中南大学湘雅医院 | An abdominal wall cutting manipulator |
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Application publication date: 20191129 |