JPS56102549A - Manufacture of sintered iron alloy - Google Patents
Manufacture of sintered iron alloyInfo
- Publication number
- JPS56102549A JPS56102549A JP544180A JP544180A JPS56102549A JP S56102549 A JPS56102549 A JP S56102549A JP 544180 A JP544180 A JP 544180A JP 544180 A JP544180 A JP 544180A JP S56102549 A JPS56102549 A JP S56102549A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- circular opening
- fatigue strength
- powder
- peripheral parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To obtain a sintered iron alloy with higher toughness at peripheral parts of circular opening and enhanced fatigue strength and rolling fatigue strength by adding Ni to an iron green compact at the time of sintering to raise the concn. of Ni at the peripheral parts of circular opening.
CONSTITUTION: Ni as an alloying element is added to iron or iron alloy powder to prepare starting material powder of Fe-Cr-Ni, Fe-Mo-Ni, Fe-Mn-Ni, Cr-Ni, Mo-Ni, Mn-Ni or the like. Base iron powder is mixed with this powder, compacted, and sintered to diffuse the Cr, Mo, Mn and Ni in the iron, thereby forming circular opening. At this time, undiffused Ni is left at peripheral parts of circular opening to form parts of higher Ni concn. Thus, the toughness of the peripheral parts of the circular opening receiving concentrated stress is increased preponderantly, and a sintered iron alloy with high fatigue strength and rolling fatigue strength is obtd. In this alloy about 8W80% Ni in the starting material powder produces a satisfactory effect.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP544180A JPS5856019B2 (en) | 1980-01-21 | 1980-01-21 | Manufacturing method of iron-based sintered alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP544180A JPS5856019B2 (en) | 1980-01-21 | 1980-01-21 | Manufacturing method of iron-based sintered alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56102549A true JPS56102549A (en) | 1981-08-17 |
| JPS5856019B2 JPS5856019B2 (en) | 1983-12-13 |
Family
ID=11611277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP544180A Expired JPS5856019B2 (en) | 1980-01-21 | 1980-01-21 | Manufacturing method of iron-based sintered alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5856019B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61231102A (en) * | 1985-03-07 | 1986-10-15 | ヘーガネース アーベー | Powder based on iron containing ni and mo for producing highstrength sintered body |
| US4770703A (en) * | 1984-06-06 | 1988-09-13 | Sumitomo Metal Industries, Ltd. | Sintered stainless steel and production process therefor |
| CN113145843A (en) * | 2021-04-28 | 2021-07-23 | 武汉科技大学 | Gradient alloying powder material prepared by high-temperature thermal diffusion method and preparation method thereof |
-
1980
- 1980-01-21 JP JP544180A patent/JPS5856019B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4770703A (en) * | 1984-06-06 | 1988-09-13 | Sumitomo Metal Industries, Ltd. | Sintered stainless steel and production process therefor |
| JPS61231102A (en) * | 1985-03-07 | 1986-10-15 | ヘーガネース アーベー | Powder based on iron containing ni and mo for producing highstrength sintered body |
| CN113145843A (en) * | 2021-04-28 | 2021-07-23 | 武汉科技大学 | Gradient alloying powder material prepared by high-temperature thermal diffusion method and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5856019B2 (en) | 1983-12-13 |
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