摘要
铸造铝合金在工业中应用广泛,铸件中的残余应力直接影响其尺寸稳定性和使用性能。铝合金铸件中残余应力的形成机制及检测与控制方法研究对提高铸件质量和使用性能具有重要意义。阐述了铝合金铸件在铸造和热处理过程中残余应力形成机制,综述了铝合金铸件残余应力的检测技术,分析了降低铝合金铸件中残余应力的途径与方法,指出了残余应力控制的研究与发展方向。
Cast aluminum alloy is widely used in industry.The residual stress in the casting directly affects its dimensional stability and service performance.The research on the formation mechanism of residual stress in aluminum alloy castings as well as the detection and control methods is of great significance to improve the quality and performance of the castings.In this paper,the formation mechanism of residual stress in the casting and heat treatment process of aluminum alloy castings is described,the detection technology of residual stress in aluminum alloy castings is summarized,the ways and methods of reducing residual stress in aluminum alloy castings are analyzed,and the research and development direction of residual stress control is pointed out.
作者
何建刚
曾大新
史秋月
李峰光
HE Jiangang;ZENG Daxin;SHI Qiuyue;LI Fengguang(School of Materials Science and Engineering,Hubei University of Automotive Technology,Shiyan 442002,China)
出处
《铸造技术》
CAS
2021年第10期919-924,927,共7页
Foundry Technology
基金
国家科技重大专项(2018ZX04027001-009)。
关键词
铝合金
铸件
残余应力
形成机制
应力检测
应力控制
aluminum alloy
casting
residual stress
forming mechanism
stress measurement
stress control
