激光选区熔化高强铝合金件的热处理及空间环境性能

doi:10.13251/j.issn.0254-6051.2022.07.001

金属热处理 ›› 2022, Vol. 47 ›› Issue (7): 1-8.DOI: 10.13251/j.issn.0254-6051.2022.07.001

• 工艺研究 • 下一篇

激光选区熔化高强铝合金件的热处理及空间环境性能

姜超¹, 贾东永¹, 周志勇¹, 田政¹, 郭星晔², 王哲³, 韩修柱¹

1.北京空间飞行器总体设计部, 北京 100094;
2.北京工业大学材料与制造学部, 北京 100124;
3.北京卫星制造厂有限公司, 北京 100094

收稿日期:2022-04-01 修回日期:2022-05-18 出版日期:2022-07-25 发布日期:2022-08-12
通讯作者: 韩修柱,男,高级工程师,博士,E-mail:xiuzhuhan@163.com
作者简介:姜超(1985—),男,工程师,硕士,主要研究方向为航天器设计及金属材料性能,E-mail:13811434564@139.com。
基金资助:
国家重点研发计划(2018YFB1106303)

Heat treatment and space environment performance of high strength aluminum alloy parts by selective laser melting

Jiang Chao¹, Jia Dongyong¹, Zhou Zhiyong¹, Tian Zheng¹, Guo Xingye², Wang Zhe³, Han Xiuzhu¹

1. Beijing Institute of Spacecraft System Engineering, Beijing 100094, China;
2. Faculty of Materials and Manufacturing, Beijing Polytechnic University, Beijing 100124, China;
3. Beijing Satellite Manufacturing Co., Ltd., Beijing 100094, China

Received:2022-04-01 Revised:2022-05-18 Online:2022-07-25 Published:2022-08-12

摘要/Abstract

摘要： 采用激光选区熔化(SLM)增材制造技术制备了铝镁钪锆体系的高强铝合金试样,并对该试样进行退火和固溶时效处理,研究其组织和力学性能的演变。对试样进行高低温循环试验,以模拟空间环境温度变化,进而研究经过高低温循环后的力学性能演变。结果表明,对于该SLM制备的高强铝合金而言,退火处理可以显著改善其力学性能。经过模拟空间环境的高低温循环试验后,试样力学性能保持不变,能够满足空间交变温度下的性能要求。

关键词: 高强铝合金, 激光选区熔化, 热处理, 空间环境, 力学性能

Abstract: High-strength aluminum alloy specimens of aluminum-magnesium-scandium-zirconium system were prepared by adopting the additive manufacturing technologys of selective laser melting (SLM). The evolution of the microstructure and mechanical properties of the specimens during annealing and solution aging treatment were studied. In addition, high and low temperature cycle experiments were carried out on the specimens to simulate the temperature change of the space environment, and then the evolution of mechanical properties after high and low temperature cycles were studied. The results show that for the high-strength aluminum alloy prepared by the SLM, the annealing treatment can significantly improve its mechanical properties. After the high and low temperature cycle experiment simulating the space environment, mechanical properties of the specimens remain unchanged, so it meets the performance requirements under the space alternating temperature.

Key words: high strength aluminum alloy, laser selective melting, heat treatment, space environment, mechanical properties

中图分类号:

姜超, 贾东永, 周志勇, 田政, 郭星晔, 王哲, 韩修柱. 激光选区熔化高强铝合金件的热处理及空间环境性能[J]. 金属热处理, 2022, 47(7): 1-8.

Jiang Chao, Jia Dongyong, Zhou Zhiyong, Tian Zheng, Guo Xingye, Wang Zhe, Han Xiuzhu. Heat treatment and space environment performance of high strength aluminum alloy parts by selective laser melting[J]. Heat Treatment of Metals, 2022, 47(7): 1-8.

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激光选区熔化高强铝合金件的热处理及空间环境性能

Heat treatment and space environment performance of high strength aluminum alloy parts by selective laser melting

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