摘要
用SEM、TEM、微区XRD等手段分析了复合板界面扩散层的形貌和结构,研究了热处理工艺对冷轧铜铝复合板材界面扩散层结构的影响,讨论界面扩散层形成规律。研究表明,冷轧铜铝复合板经过扩散热处理后,在复合界面形成具有扩散性质的界面层,随着热处理时间的延续,界面扩散层由最初的单层逐渐生长为三层,进一步延长热处理时间,界面层的层数不变,厚度略有增加;界面层含有q(Al2Cu)相、h2(AlCu)相和g2(Al4Cu9)相等金属间化合物;界面扩散层结构为:铝侧的Al-Cu固溶体与q(Al2Cu)相复合层、h2(AlCu)相层和铜侧的Cu-Al固溶体与g2(Al4Cu9)相复合层。
The effect of heat treatment on the microstructure of the interfacial diffusion layer of Cu/Al composite laminate prepared by cold rolling was investigated by means of SEM, TEM and micro-XRD The results show that an interfacial diffusion layer may form soon after heat treatment at high temperature; then as the heating time lengthened, the interfacial diffusion layer growths gradually from the original single-layer to become a three-layed one, while the heating time further lengthened, the morphology of the interfacial diffusion layer kept more or less unchanged besides a slight thickening; the interfacial diffusion layer consists of a layer of Al-Cu solid solution with intermetallic compound q(Al2Cu) nearby the Al side, a layer of h2(AlCu)in the middle and a layer of Cu-Al solid solution with intermetallic compound g2(Al4Cu9) nearby the Cu side.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2014年第7期528-534,共7页
Chinese Journal of Materials Research
基金
国家自然科学基金51074108资助项目~~
关键词
金属材料
铜铝复合板
热处理
扩散层
金属间化合物
metallic materials,Cu/Al composite laminate,heat treatment,diffusion layer,intermetallic compound
