Study on Pitting corrosion of HIPed Stellite 12
This paper reported the analysis results from the SEM (scanning electron microscope)and AES (Auger Electron Spectroscopy) of HIP(hot isostatically pressed)stellite 12 in a 3.5% NaCl liquid medium.The aim of the paper is to determine thickness and the composition of the passive film formed at different HIP temperatures, different primary power size and link that to the corrosion properties.It has been shown that the alloy passivate spontaneously in air resulting in the formation of a thin oxide film comprising Cr and Co.film thickness is from 30 ~39nm.Electrochemical oxidation at different HIP temperature results in formation of complex layer, the composition and thickness of which depends on the HIP temperature and primary power size.Cl was detected in the surface layer ,but did not permeate in passive film, O enriched in 1.5nm under surface layer.This paper mainly introduced the influence of HIP temperature for space limitation.
pitting corrosion HIP ST12 AES
CHE Hongyan LIU Guohui Donghao LIU Huiyuan WANG Tiejun
Advanced Technology & Materials Co., Ltd., Beijing 100086, China;Engineering and Technology Research Advanced Technology & Materials Co., Ltd., Beijing 100086, China;Engineering and Technology Research
国际会议
北京
英文
312-316
2014-10-11（万方平台首次上网日期，不代表论文的发表时间）