摘要
由于铜导线的生产加工成本较高,寻求一种可替代的、成本低廉的以及性能优异的Al-Mg-Si导线显得尤为重要。采用金相、断口扫描(SEM)、透射电镜(TEM)以及拉伸力学测试实验对Al-Mg-Si合金导线在传统和新型加工工艺过程中的微观组织和宏观性能进行了研究。结果表明:新型轧制—拉拔技术能够有效地抑制合金在退火过程中的晶粒长大,从而细化晶粒;有利于改善合金的韧性断裂方式(韧性穿晶断裂);同时能够抑制合金时效析出和舒展位错堆积,从而提高合金导线的力学性能。
Due to high cost of production and processing of copper wire, it is very important to look for a fungible Al-Mg-Si wire of low cost and excellent performance. Microstructures and macro-properties of Al-Mg-Si wires in traditional and new processing technology process were studied by using microscopy, scanning electron microscopy, transmission electron microscopy and tensile mechanical tests. The results show that new rolling-dawing technology can effectively restrain grains growth of the alloy in anneal process, so as to refine the grains; it benefits improving the toughness fracture mode of the alloy （ ductile transgranular）; and it can inhibit artificial aging precipitation and the stretch dislocation accumulation, thus the mechanical properties of the alloy wire are improved.
出处
《热加工工艺》
CSCD
北大核心
2014年第3期31-33,共3页
Hot Working Technology
