摘要
研究了热处理工艺对铜包铝复合丝材界面的影响,用扩散等金属学理论分析了铜包铝复合丝界面。结果表明,通过固-液浇注法和拉拔加工的方法制备铜包铝复合丝材,高温退火的复合试样难以进行塑性加工,而低温退火能使界面结合牢固;最佳的退火温度为400℃;保温时间为1 h。铜包铝丝材加工性能变化的规律主要是退火温度对材料的软化、界面扩散的影响。
Influence of heat treatment on interface of Cu/Al bimetal composite was investigated. Diffusion theory was used to analyze copper clad aluminum wire interface. The results show that the sample of copper clad aluminum composite wire prepared by solid-liquid casting method and drawing is difficult to be plastic processed after high-temperature annealing,but the interface is firmly bonded after low-temperature annealing. The optimal annealing temperature is 400 ℃ and annealing time is 1 h. The mechanical properties of the composite wire are influenced by two mechanisms of annealing softening and interfacial diffusion.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2013年第S2期14-18,共5页
Transactions of Materials and Heat Treatment
基金
国家基金(51164015)
云南省院所专项课题(2011CF012)
云南省创新团队(2012FC027)
昆明市科技创新团队(2012-01-01-A-R-07-0005)
关键词
铜包铝
扩散
界面
退火温度和时间
copper clad aluminum
diffusion
interface
annealing temperature and time
