SU407687A1 - METHOD FOR ESTIMATING THE RESISTANCE OF STEELS FORMING CRACKS IN WELDING - Google Patents
METHOD FOR ESTIMATING THE RESISTANCE OF STEELS FORMING CRACKS IN WELDINGInfo
- Publication number
- SU407687A1 SU407687A1 SU1826808A SU1826808A SU407687A1 SU 407687 A1 SU407687 A1 SU 407687A1 SU 1826808 A SU1826808 A SU 1826808A SU 1826808 A SU1826808 A SU 1826808A SU 407687 A1 SU407687 A1 SU 407687A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- welding
- resistance
- estimating
- steels
- forming cracks
- Prior art date
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- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Description
1one
Изобретение относитс к сварке, в частности , к способам испытани стойкости материала против трещин.The invention relates to welding, in particular, to methods for testing the resistance of a material against cracks.
Известен способ оценки сопротивл емости образованию трещин при сварке, при котором измен ют скорость охлаждени образцов, а за критерий оценки принимают соответствующую определенному количеству мартенсита критическую скорость охлаждени образцов, при которой по вл ютс первые трещины.There is a method for estimating the resistance to cracking during welding, at which the cooling rate of the samples is changed, and the critical cooling rate of the samples, at which the first cracks appear, is taken as the evaluation criterion corresponding to a certain amount of martensite.
Цель способа - оценить вли ние термического цикла сварки и состава присадочного материала на стойкость против трещин сталей с различным содержанием мартенсита.The purpose of the method is to assess the effect of the thermal cycle of welding and the composition of the filler material on the resistance to cracking of steels with different martensite contents.
Это достигаетс путем предварительной закалки образцов до сварки на контролируемое количество мартенсита путем изменени скорости охлаждени .This is achieved by pre-quenching the samples prior to welding for a controlled amount of martensite by varying the cooling rate.
Количество мартенсита, при котором по вл ютс первые трещины, принимают за критерий стойкости металла против трещин.The amount of martensite at which the first cracks appear is taken as the criterion of metal resistance to cracks.
Способ может быть применен при выборе режимов сварки и присадочного материала дл сварных конструкций из сталей различных структурных классов (в частности, перлитного и ферритно-мартенситного).The method can be applied in the selection of welding modes and filler material for welded structures from steels of various structural classes (in particular, pearlite and ferritic-martensitic).
Дл получени заданного количества мартенситной фазы охлаждение после нагрева образцов можно производить в сол ных ваннах различного состава.To obtain a specified amount of the martensitic phase, cooling after heating the samples can be performed in salt baths of various compositions.
Предмет изобретени Subject invention
Способ оценки сопротивл емости сталей образованию трещин при сварке, при котором измен ют скорость охлаждени образцов, а за критерий оценки принимают соответствующую определенному количеству мартенсита критическую скорость охлаждени образцов, при которой по вл ютс первые трещины, отличающийс тем, что, с целью вы влени вли ни термического цикла сварки и состава присадочного материала на стойкость сталей с различным содержанием мартенсита, образцы оеред Оваркой подвергают закалке на контролируемое количество мартенсита путем изменени скорости охлаждени .The method for estimating the resistance of steels to the formation of cracks during welding, at which the cooling rate of the samples is changed, and the critical cooling rate of the samples, at which the first cracks appear, characterized in that, in order to detect the effect of Thermal cycle of welding and composition of the filler material for the resistance of steels with different martensite content, samples by Oered Ovarka are quenched for a controlled amount of martensite by m change in cooling rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1826808A SU407687A1 (en) | 1972-08-25 | 1972-08-25 | METHOD FOR ESTIMATING THE RESISTANCE OF STEELS FORMING CRACKS IN WELDING |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1826808A SU407687A1 (en) | 1972-08-25 | 1972-08-25 | METHOD FOR ESTIMATING THE RESISTANCE OF STEELS FORMING CRACKS IN WELDING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU407687A1 true SU407687A1 (en) | 1973-12-10 |
Family
ID=20526532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1826808A SU407687A1 (en) | 1972-08-25 | 1972-08-25 | METHOD FOR ESTIMATING THE RESISTANCE OF STEELS FORMING CRACKS IN WELDING |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU407687A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432862A (en) * | 2020-11-05 | 2021-03-02 | 上海交通大学 | Comprehensive evaluation method for welding thermal crack sensitivity |
-
1972
- 1972-08-25 SU SU1826808A patent/SU407687A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432862A (en) * | 2020-11-05 | 2021-03-02 | 上海交通大学 | Comprehensive evaluation method for welding thermal crack sensitivity |
| CN112432862B (en) * | 2020-11-05 | 2021-11-16 | 上海交通大学 | A comprehensive evaluation method for welding hot crack susceptibility |
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