采用恒温恒压扩散焊、相变超塑性扩散焊、冲击加压扩散焊对直接对焊和加纳米镍粉中间层的钛合金-不锈钢焊接接头进行了研究。测试了接头强度,并进行了断口形貌观察和组织分析,结果表明:3种试验方法中,恒温恒压扩散焊所得接头强度较小,而冲击加压扩散焊所得接头强度较高;直接扩散焊时,接头上两种基体材料之间的互扩散程度很大程度上影响了钛合金-不锈钢接头的强度;采用纳米镍粉作中间层能形成强度较高的接头,达到了213MPa,但纳米镍粉的致密度不够高,接头的强度在很大程度上受到了限制。
23 2 Vol.23 No.2 2011 3 CORROSION SCIENCE AND PROTECTION TECHNOLOGY Mar. 2011 1, 2 , 1 1. , 113001; 2. , 113001 : , . : ; ; ; : TG174 : A : 1002 – 6495(2011)02 – 0196 – 05 Research Progress of Nanostructured Nickel-based Alloy Coatings Prepared by Pulsed Electrodeposition LIANG Ping 1 , ZHANG Yun-xia 2 , SHI Yan-hua 1 1. School of Mechanical Engineering, Liaoning Shihua University, Fushun 113001;