真空轧制不锈钢复合板的组织和性能  

Microstructure and Properties of Stainless Steel Clad Plate by Vacuum Rolling Cladding

作　　者：谢广明[1] 骆宗安[1] 王光磊[1] 王国栋[1] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2011年第10期1398-1401,共4页Journal of Northeastern University(Natural Science)

基　　金：中央高校基本科研业务费专项资金资助项目(N090307003)

摘　　要：采用真空轧制法对6mm厚的奥氏体不锈钢板和50mm厚的碳钢板复合.在高真空、高温和大轧制力的共同作用下,界面实现了牢固的冶金结合并且最终得到了高质量的不锈钢复合板.研究发现界面无开裂和氧化层,仅在界面附近分布少量细小弥散的Si-Mn氧化物颗粒.通过能谱发现不锈钢侧的Cr和Ni向碳钢迁移,在界面形成一薄层富Cr,Ni层,导致复合层硬度升高;碳钢中的C向不锈钢侧迁移导致出现脱碳区,且该区硬度最低.界面的剪切强度达467MPa.6 mm thick stainless steel and 50 mm thick carbon steel were successfully combined by vacuum rolling cladding（VRC）.Metallurgical bond of the clad interfaces was achieved by high vacuum,high temperature and severe rolling force to obtain the stainless steel clad plate with a high quality.In the clad interface,except small amount of fine and dispersed Si-Mn oxides,no crack and oxide layer were observed by optical microscope.Energy dispersive spectroscopy showed that Cr and Ni diffuse from stainless steel side to carbon steel side to form a rich Cr/Ni layer in the clad interface,leading to the increasing of hardness of the clad interface.The decarburization zone with lowest hardness is formed due to the migration of C from carbon steel to stainless steel.The shearing strength of the clad interface reaches to 467 MPa.

关 键 词：真空轧制复合 复合板 界面 微观组织 力学性能 

分 类 号：TG335.58[金属学及工艺—金属压力加工]