Formation Sequence of Interface Intermetallic Phases of Cold Rolling Cu/Al Clad Metal Sheet in Annealing Process

摘要：

　　The formation Gibbs energy of the intermetallic phases at the interface of cold rolling Cu/Al clad metal sheet in annealing process was calculated theoretically.The concept and the calculating method of effective formation Gibbs energy which can predict the formation sequence was proposed.By the means of that theory,the calculated formation sequence of the intermetallic phases at 200-300℃ was worked out for the cold rolling Cu/Al clad metal sheet in annealing process,i.e.Al2Cu(Al side),AlCu(mid-layer) and Al4Cu9(Cu side).Besides,the boundary layer organizational microstructure of the composite material was analyzed by the means of SEM and XRD.As a result,the annealing temperature is the primary factor which affects the formation of the intermetallic phases of the cold rolling Cu/Al clad metal sheet,while the holding time is the second one.The observed formation sequence of the intermetallic phases of cold rolling Cu/Al clad metal sheet on annealing temperature 250℃-300℃ was: Al2Cu(Al side),Al4Cu9(Cu side) and AlCu(mid-side).

关键词： Formation Gibbs free energy Thermodynamic calculation Intermetallic phase Cu/Al clad metal sheet Diffusion

作者: Lin Yang Bingxue Mi Lin Lv Hongjun Huang Xiaoping Lin Xiaoguang Yuan

作者单位: School of material science and technology, Shenyang University of Technology, Shenyang, China School of resources and materials, Northeastern University at Qinhuangdao, Qinhuangdao, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 600-605

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）