许晓静,吴瑶,张振强,邓平安,孙良省

• 1:江苏大学先进制造与现代装备技术工程研究院

摘要(Abstract)：

采用硬度、电导率测试和显微组织观察等手段,研究了二级时效温度对2099铝锂合金硬度、电导率、抗晶间腐蚀和抗剥落腐蚀性能的影响。结果表明:经过121℃×14 h一级时效和不同温度(151、161、171、181、191和201℃)下的48 h二级时效热处理后,硬度值先随二级时效温度的升高而显著增加,在181℃时达到峰值,然后在191℃时开始出现下降趋势,201℃时大幅下降;电导率随二级时效温度变化较小;在二级时效温度为181℃,即峰值硬度时的抗晶间腐蚀性能最差;二级时效温度对抗剥落腐蚀性能影响不大。

关键词(KeyWords)： 2099铝锂合金;时效温度;抗腐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 江苏省工业科技支撑计划项目(BE2008118);; 江苏大学拔尖人才培养工程基金(1211110001);; 江苏省高校优势学科建设工程项目

作者(Author): 许晓静,吴瑶,张振强,邓平安,孙良省

DOI: 10.13289/j.issn.1009-6264.2014.09.027

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