| 真空高压气淬D406A钢的淬透性 |
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| 引用本文： | 吕超君,唐丽娜,任伟,王健波,张天德.真空高压气淬D406A钢的淬透性[J].金属热处理,2020,45(2):189-192. |
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| 作者姓名： | 吕超君 唐丽娜 任伟 王健波 张天德 |
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| 作者单位： | 上海航天设备制造总厂有限公司, 上海 200245 |
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| 基金项目： | 中国航天科技集团公司共性工艺项目 |
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| 摘 要： | 研究了不同气淬压力对D406A钢力学性能、淬透性、显微组织的影响。研究表明,随气淬压力增大,D406A钢淬透深度增加,5bar气淬压力下,能淬透ø20mm的D406A钢圆棒,1.5bar气淬条件下,能淬透ø10mm的D406A钢圆棒。气淬试样力学性能均能满足相关标准要求,显微组织为均匀的板条马氏体。
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| 关 键 词： | D406A钢 真空高压气淬 力学性能 淬透性 显微组织 |
| 收稿时间： | 2019-08-22 |
Hardenability of D406A steel after vacuum high-pressure gas quenching |
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| Lu Chaojun,Tang Lina,Ren Wei,Wang Jianbo,Zhang Tiande.Hardenability of D406A steel after vacuum high-pressure gas quenching[J].Heat Treatment of Metals,2020,45(2):189-192. |
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| Authors: | Lu Chaojun Tang Lina Ren Wei Wang Jianbo Zhang Tiande |
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| Affiliation: | Shanghai Aerospace Equipments Manufacturer Co., Ltd., Shanghai 200245, China |
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| Abstract: | Effects of different gas pressure on mechanical properties,hardenability and microstructure of D406 A steel were studied. The results show that the hardened depth of D406 A steel increases with the increase of gas quenching pressure,the ф20 mm round D406 A steel can be hardened fully when gas quenched under 5 bar pressure,and the ф10 mm round D406 A steel can be hardened fully when gas quenched under 1. 5 bar pressure. Mechanical properties of specimens quenched by gas can meet the standard requirements,and the microstructure is composed of uniform lath martensite. |
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| Keywords: | D406A steel vacuum high-pressure gas quenching mechanical properties hardenability microstructure |
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