Evaluation of interaction between Sn and passivated stainless steel through an easy chromaticity approach  

作　　者：Yan Zhao Jian-jun Guan Feng Liu Ping Liang Cong-qian Cheng Jie Zhao 

机构地区：[1]School of Mechanical Engineering,Liaoning Shihua University,Fushun 113001,Liaoning,China [2]School of Materials Scienee and Engineering,Dalian University of Tech no logy,Dalian 116085,Liaoning,China

出　　处：《Journal of Iron and Steel Research International》2019年第2期211-218,共8页

基　　金：the National Natural Science Foundation of China(NSFC No.51571051);Science and Technology Research Fund of Liaoning Province,Department of Education(Nos.L2016008,L2017LQN026);Doctor Research Startup Fund of Liaoning Province(No.201601336);Scientific Research Cultivation Fund of LSHU(No.2016PY-024).

摘　　要：The interaction between Sn and passivated stainless steel was evaluated through an easy chromaticity approach.The microstructure of Fe-Sn intermetallics(IMCs)was observed,and their growth was inspected at differenf time after the in teract io n.The oxide film on stainless steel exposed in air locally delayed IMC growth,and the chemically passivated film protected stainless steel from Fe-Sn compound formation.To investigate the interaction mechanism,the integrity of passivated films grown on stainless steel was evaluated by chromogenic inspection.The interaction extern was related to colour measurement a*.Results indicated that the measured value of a*from the inspection decreased with the increasing exposure time,and a minimum a*value was found in chemically passivated samples.The tendency of the colour measureme was consistent with the effect of passive film on IMC growth.The in terfacial reaction of passivated stainless steel with Sn was illustrated based on the integrity of the passive films.

关 键 词：STAINLESS steel Passive film CHROMATICITY inspection SN Fe-Sn INTERMETALLICS 

分 类 号：TF[冶金工程]