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深冷处理对C17510铍铜合金组织及性能的影响
Effect of Low Temperature Treatment on Microstructure and Properties of C17510 Beryllium Copper Alloy
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- DOI:
- 作者:
- 卢翰林，陈乐平，方森鹏，周 全
LU Hanlin, CHEN Leping, FANG Senpeng, ZHOU Quan
- 作者单位:
- 南昌航空大学 航空制造工程学院，江西 南昌 330063
School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China
- 关键词:
- C17510 合金；深冷处理；显微组织；电导率；硬度
C17510 alloy; deep cryogenic treatment; microstructure; electrical conductivity; hardness
- 摘要:
- 为改善 C17510 合金组织，提高合金性能，采用固溶、时效、深冷处理工艺对 C17510 合金进行了处理，利用
维氏硬度计、XRD、电导率测试仪、金相显微镜等手段研究了 C17510 合金深冷处理前后显微组织及性能的变化。 结果
表明，在保持固溶及时效处理条件不变的情况下，经深冷处理后 C17510 合金组织中出现孪晶；深冷处理对 C17510 合
金试样的电导率影响不大；随着深冷时间的延长，C17510 合金的维氏硬度变化呈显先降低后升高再降低的趋势，
在 10 h 处达到峰值，为 290.19 HV。
In order to improve the microstructure and properties of C17510 alloy, C17510 alloy was treated by solid solution, aging and deep cryogenic treatment. The microstructure and properties of C17510 alloy were studied by means of Vickers hardness tester, XRD, electrical conductivity tester and metallographic microscope. The results show that twin crystals appear in the microstructure of C17510 alloy after cryogenic treatment under the condition of constant solution and aging treatment. Cryogenic treatment has little effect on the conductivity of C17510 alloy. With the prolonging of cryogenic time, the Vickers hardness of C17510 alloy decreases firstly, then increases and then decreases, and reaches the peak value of 290.19 HV at 10 h.