SU505746A1 - The method of chemical heat treatment - Google Patents
The method of chemical heat treatmentInfo
- Publication number
- SU505746A1 SU505746A1 SU2029632A SU2029632A SU505746A1 SU 505746 A1 SU505746 A1 SU 505746A1 SU 2029632 A SU2029632 A SU 2029632A SU 2029632 A SU2029632 A SU 2029632A SU 505746 A1 SU505746 A1 SU 505746A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- heat treatment
- chemical heat
- annealing
- carried out
- temperature
- Prior art date
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- Forging (AREA)
Description
(54) СПОСОБ ХИМИКО-ТЕРМИЧЕСКОЙ ОБРАБОТКИ(54) METHOD OF CHEMICAL-THERMAL TREATMENT
Таблица 1Table 1
Аналогично известному способу. Similar to the known method.
Пример. Обработке подвергают листы толщиной 0,8-1,2 мм из нагартованных сплавов марок СБ1 (состав, вес. %: Zr 1,1; Та 0,2; остальное ниобий) и 5ВМЦ (состав, вес. %: W 5,3; Мо 2,0; Zr 1,1, остальное ниобий ). Накислороживание под слоем карбюризатора осуществл ют на воздухе при 800° С в течение 6 час, выравнивающий отжиг - в вакууме 5 10 мм. рт. ст. при 1100° С в течение I час, отжиг дл сн ти напр жений - в вакууме 5 10 торр при 1250° С в течение 4 час.Example. Sheets with a thickness of 0.8-1.2 mm from hardened alloys of grades SB1 (composition, wt.%: Zr 1.1; Ta 0.2; the rest is niobium) and 5BMC (composition, wt.%: W 5.3 ; Mo 2.0; Zr 1.1, the rest is niobium). The oxygenation under the carburizer layer is carried out in air at 800 ° C for 6 hours, the leveling annealing is carried out in a vacuum of 5-10 mm. Hg Art. at 1100 ° C for I hour, annealing for stress relief — in a vacuum of 5 10 Torr at 1250 ° C for 4 hours.
Из:менение состава и прочности сплавов на основе ниоби СБ1 и 5ВМЦ после отжига 1250°С в течение 4 час показано в табл. 2.From: Changes in the composition and strength of alloys based on niobium SB1 and 5VMC after annealing at 1250 ° C for 4 hours are shown in Table. 2
Предел текучести, кгс/ммYield point, kgf / mm
3434
Химико-термическа обработка по предлагаемому способу позвол ет упрочнить сплавы в большей степени, чем по известному способу. При этом материал сохран ет достаточную пластичность (при 20° С относительное удлинение составл ет 8-12%). Обработка проводитс на широко распространенном оборудовании и не вызывает затруднений при ковке, прокатке, штамповке или сварке, поскольку эти операции могут быть выполнены предварительно на неупрочненных металлах.Chemical-thermal treatment according to the proposed method makes it possible to harden the alloys to a greater extent than by a known method. The material retains sufficient ductility (at 20 ° C, the elongation is 8-12%). The processing is carried out on widespread equipment and does not cause difficulties in forging, rolling, stamping or welding, since these operations can be performed on pre-strengthened metals.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2029632A SU505746A1 (en) | 1974-06-03 | 1974-06-03 | The method of chemical heat treatment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2029632A SU505746A1 (en) | 1974-06-03 | 1974-06-03 | The method of chemical heat treatment |
Publications (1)
Publication Number | Publication Date |
---|---|
SU505746A1 true SU505746A1 (en) | 1976-03-05 |
Family
ID=20586339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2029632A SU505746A1 (en) | 1974-06-03 | 1974-06-03 | The method of chemical heat treatment |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU505746A1 (en) |
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1974
- 1974-06-03 SU SU2029632A patent/SU505746A1/en active
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