张晏宁,周佳怡,苏颖颖,党朋,蔡西川,林俊良,武英杰,王强

• 1:辽宁大学轻型产业学院
• 2:上海电缆研究所有限公司特种电缆技术国家重点实验室

摘要(Abstract)：

耐热铝合金线在极端工况下的热损伤机制是一个重要的科学问题。对Al-Zr-Er合金线在400℃下进行不同时间的热处理以模拟其高温服役工况,研究了Al-Zr-Er合金线热处理后的微观组织和力学性能。结果表明:经400℃热处理后,Al-Zr-Er合金线的晶粒尺寸随热处理时间的增加而逐渐增大,内部晶粒组织再结晶程度逐渐增加,抗拉强度逐渐减小,抗拉强度与导电率呈现制约关系;Al-Zr-Er合金线在400℃热处理1 h后强度残存率低于90%,其热损伤机制主要是晶粒尺寸增大导致细晶强化效果下降。

关键词(KeyWords)： Al-Zr-Er合金线;微观组织;导电率;热损伤机制

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52273322)

作者(Author): 张晏宁,周佳怡,苏颖颖,党朋,蔡西川,林俊良,武英杰,王强

DOI: 10.13289/j.issn.1009-6264.2024-0395

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