电焊机2012，Vol.42Issue(2)：49-53,5.
具有中间夹层的1.6％C-UHCS/40Cr超塑性焊接接头组织和性能
Microstructure and property of 1.6％ C-UHCS/40Cr joint after superplastic welding via interlayer
摘要
Abstract
Since the superplastic welding of quenched 40Cr and thermo-mechanical processed 1.6% ultrahigh carbon steel(1.6%C-UHCS) is of great possibility.Conduct the superplastic welding experiment of 1.6%C-UHCS/40Cr via industrial pure iron interlayer without protection of vacuum or atmosphere.By means of modern physical and chemical detection means, analyze the joint mechanical performance,microstructure and defects of superplastic welded joints with and without interlayer.Study the improving effect of industrial pure iron on the joint as the interlayer.The results show that with interlayer,the joint's plastic deformation capacity was improved,diffusion was promoted and its joint microstructure was improved.When the prepressing stress is 56.6 Mpa.the welding temperature is 780 ℃the initial strain rate is 1.5×10-4/s,after 15 min welding,the joint strength can reach 560 Mpa,which is 46% more than that without interlayer.关键词
超高碳钢/中间层/超塑性/固态焊接Key words
ultrahigh carbon steel/interlayer/superplastic/solid state welding分类
矿业与冶金引用本文复制引用
衡中皓,张柯柯,乔騻,张占领,张晓娇,涂益民..具有中间夹层的1.6％C-UHCS/40Cr超塑性焊接接头组织和性能[J].电焊机,2012,42(2):49-53,5.基金项目
国家自然科学基金资助项日(50774029) （50774029）
河南省杰出青年科学基金资助项目(074100510011) （074100510011）
