Mechanical behavior of 3-ply Cu-Ni-Zn/Cu-Cr/Cu-Ni-Zn composite plate processed by roll bonding
3-ply Cu-Ni-Zn/Cu-Cr/Cu-Ni-Zn clad composite plates were prepared by roll bonding at 823K and their properties were characterized.No intermetallic compounds were observed at Cu-Ni Zn/Cu-Cr interfaces in the as-rolled and heat-treated Cu/Ni-Zn/Cu-Cr/Cu-Ni-Zn clad plates.The strength of as-rolled clad plate reached up to 420MPa with the ductility of 13%.After heat treatment at 723K for 1.5 hours, the strength of Cu-Ni-Zn/Cu-Cr/Cu-Ni-Zn clad composite plate dropped to 340 MPa and the ductility increased to 20%.With annealing at 723K, there is no drastic drop of the stress before final fracture, meaning three plates were bonded together until the last part of the stress-strain curve.The peak of the conductivity (>70% of IACS) was attained after aging for 1.5 hrs, compatible with the typical peak aging condition of Cu-Cr alloy.
Cu-Cr Cu-Ni-Zn Strength Roll bonding Hybrid Clad
Hobyung Kim Jae Sook Song Sun Ig Hong
Department of Advanced Materials Engineering,Chungnam National University,Daejeon,305-764 Korea
国际会议
香港
英文
43-46
2013-06-25（万方平台首次上网日期，不代表论文的发表时间）