摘要
通过熔炼、浇注以及等温热处理的方法制备了具有球晶组织的Zn-Al合金,并采用重熔实验、等温压缩实验和振动辅助半固态钎焊实验研究了半固态Zn-Al合金的固相率与温度的关系、压缩变形行为以及作为钎料的可钎焊性。结果表明:半固态Zn-Al合金在压缩变形时,具有较强的抗变形能力;作为钎料,在钎焊过程中其固相率能控制在(64±5)%范围内,所得钎焊接头中仅在钎缝边缘处界面上有少许氧化膜残留,而其他区域界面上的氧化膜都被彻底去除。
The Zn-Al alloy with globular grains has been fabricated by smelting,pouring and isothermal heat treating;and the relationship between solid volume fraction and temperature,compressive deformation behavior and braze ability to serve as filler metal for the Zn-Al alloy in semi-solid state have been investigated by the experiments of remelting,isothermal compressing and vibration assisted semi-solid brazing.The results indicate that： the semi-solid Zn-Al alloy has an intensive deformation resistance during compression;for serving the Zn-Al alloy as filler metal,the fluctuation of solid fraction for filler metal with temperature can be controlled in the range of（64±5）% during brazing process,and the oxide layer is disrupted thoroughly on the interface of brazed joint.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2010年第10期65-68,共4页
Journal of Materials Engineering
基金
国家自然科学基金资助项目(50575057)
关键词
ZN-AL合金
半固态
钎料
钎焊
压缩变形
Zn-Al alloy
semi-solid state
filler metal
brazing
compressive deformation
