SU443922A1 - The method of processing austenitic steels and alloys - Google Patents
The method of processing austenitic steels and alloysInfo
- Publication number
- SU443922A1 SU443922A1 SU1835538A SU1835538A SU443922A1 SU 443922 A1 SU443922 A1 SU 443922A1 SU 1835538 A SU1835538 A SU 1835538A SU 1835538 A SU1835538 A SU 1835538A SU 443922 A1 SU443922 A1 SU 443922A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- aging
- alloys
- temperature
- austenitic steels
- processing
- Prior art date
Links
Description
Изобретение относитс к способам обработки немагнитных аустенитных сталей и сплавов , матрица которых сильно разупрочн етс в процессе тепловой деформации.The invention relates to methods for treating non-magnetic austenitic steels and alloys whose matrix is greatly weakened during thermal deformation.
Известен способ обработки аустенитных сталей и сплавов, включающий закалку, предварительное старение, пластическую деформацию при температуре предварительного старени и окончательное старение при той же температуре.There is a known method of treating austenitic steels and alloys, including quenching, pre-aging, plastic deformation at the pre-aging temperature and final aging at the same temperature.
Цель изобретени - повышение прочности. Дл этого нредварительпое старение ведут при температуре на 50-150°С ниже температуры окончательного старени .The purpose of the invention is to increase the strength. For this purpose, premature aging is carried out at a temperature 50-150 ° C below the temperature of the final aging.
Описываемый способ включает закалку, предварительное старение при температуре 550-600°С, создающее большое число дисперсных частиц уирочи ющей фазы, затрудн ющих движение дислокаций, вводимых при пластической деформации, пластическую деформацию при температуре предварительного старени со степенью 5-10% в несколько обжатий с промежуточными подогревами и окончательное старение при температуре 600-700°С, обеспечивающее рост частиц упрочн ющей фазы до оптимального размера.The described method includes quenching, pre-aging at a temperature of 550-600 ° C, which creates a large number of dispersed particles of the uriishing phase, which impede the movement of dislocations introduced during plastic deformation, plastic deformation at a pre-aging temperature with a degree of 5-10% in several reductions intermediate heating and final aging at a temperature of 600-700 ° C, ensuring the growth of particles of the hardening phase to the optimum size.
Описываемый способ был использован приThe described method was used when
22
обработке стали 40Х4Г18Ф1 (0,43% углерода, 0,46% кремни , 18,92% марганца, 3,42% хрома , 1,40% ваиади , 0,19% никел ). Режим обработки: закалка от 1100°С, старение , 6 час, деформаци при 600°С па 20% с промежуточным подогревом и сгорание 650°С, 2 час.machining of steel 40Kh4G18F1 (0.43% carbon, 0.46% silicon, 18.92% manganese, 3.42% chromium, 1.40% wiadi, 0.19% nickel). The processing mode: quenching from 1100 ° С, aging, 6 hours, deformation at 600 ° С pas 20% with intermediate heating and combustion 650 ° С, 2 hours.
Механические свойства стали после обработки .Mechanical properties of steel after processing.
Предел прочности cTt 145 кг/ммг. Предел текучести 0о,2 130 кг/мм2.Tensile strength ctt 145 kg / mmg. Yield point 0о, 2 130 kg / mm2.
Относительное сужение г|з 23%.Relative narrowing r | c 23%.
ОтЕЮСнтельное удлинение б 18%.SUSTAINABLE LENGTH B 18%.
Предлагаемый способ позвол ет повыситьThe proposed method allows to increase
ресурс изделий, например бандажных колец,life of products, such as retaining rings,
из немагнитных стареющих сталей и сплавов.from non-magnetic aging steels and alloys.
Предмет изобретени Subject invention
Способ обработки аустенитных сталей и сплавов, включающий закалку, предварительное старение, нластическую деформацию при температуре предварительного старени и окончательное старение, отличающийс те-м, что, с целью повыщенн прочности, предварительпое старение провод т при температуре на 50-150С ниже температуры окончательного старени . . A method of treating austenitic steels and alloys, including quenching, pre-aging, nlastic deformation at a pre-aging temperature and final aging, characterized by the fact that, in order to increase strength, pre-aging is carried out at a temperature 50-150 ° C below the final aging temperature. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1835538A SU443922A1 (en) | 1972-10-09 | 1972-10-09 | The method of processing austenitic steels and alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1835538A SU443922A1 (en) | 1972-10-09 | 1972-10-09 | The method of processing austenitic steels and alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU443922A1 true SU443922A1 (en) | 1974-09-25 |
Family
ID=20529015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1835538A SU443922A1 (en) | 1972-10-09 | 1972-10-09 | The method of processing austenitic steels and alloys |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU443922A1 (en) |
-
1972
- 1972-10-09 SU SU1835538A patent/SU443922A1/en active
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