Interaction between austein-ferrite phases on passive performance of2205 duplex stainless steel
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2018年第11期
论文作者：Xuequn Cheng Yi Wang Xiaogang Li Chaofang Dong
文章页码：2140 - 2148
摘 要：The passive behavior of 2205 duplex stainless steel（DSS） and its individual phases（α-phase, γ-phase） in neutral 3.5% NaCl solution was investigated by various electrochemical methods. The results indicated that galvanic effect between α and γ phases cannot deteriorate local corrosion, but favors the enhancement of the passive film. Under the galvanic effect, the diffusion of the dissolved passive cations would be promoted in a short distance between α and γ zones, leading to modifications of the chemical composition and semiconductive property of the passive film and therefore the enhancement of the corrosion resistance of DSS 2205.
Xuequn Cheng1，Yi Wang2，Xiaogang Li1，Chaofang Dong1
1. Institute of Advanced Materials and Technology,University of Science and Technology Beijing2. Mechanical and Aerospace Engineering Department,West Virginia University
摘 要：The passive behavior of 2205 duplex stainless steel（DSS） and its individual phases（α-phase, γ-phase） in neutral 3.5% NaCl solution was investigated by various electrochemical methods. The results indicated that galvanic effect between α and γ phases cannot deteriorate local corrosion, but favors the enhancement of the passive film. Under the galvanic effect, the diffusion of the dissolved passive cations would be promoted in a short distance between α and γ zones, leading to modifications of the chemical composition and semiconductive property of the passive film and therefore the enhancement of the corrosion resistance of DSS 2205.
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