摘要
采用力学拉伸试验、透射电镜及扫描电镜等测试分析手段,较系统地研究了微合金化与形变热处理对足金拉伸性能和断裂行为的影响.结果表明,含微量合金元素X1的足金,85%冷加工变形,260℃时效2～3h,出现强度峰(σb为680MPa).含微量元素X1和X2的足金主要强化方式是细晶强化、加工硬化与时效强化。
The influence of trace alloying and thermo mechanical treatment on tensile properties and fracture behavior of Au based alloy with w =1.0% alloying element X 1 and rare earth element X 2, has been investigated systematically, by means of tensile test, scanning electron microscope (SEM), transmission electron microscope (TEM). Au based alloy within w =1.0% alloying element X 1, deformed by 85% and aged at 260℃ for 2~3h, shows the highest strength ( σ b: 680Mpa). Grain size strengthening, strain hardening and aging strengthening are three main strengthening manners of this kind of Au based alloy. Its fracture behavior is micro hole collecting fracture.
出处
《华中理工大学学报》
CSCD
北大核心
1999年第A01期38-41,共4页
Journal of Huazhong University of Science and Technology
基金
湖北省重点科技计划发展项目 !( 971 P0 2 1 6 )
关键词
足金
微合金化
形变热处理
时效强化
强度
Au based alloy
trace alloying
mechanical heat treatment
aging strengthening
