Effects of Matrix and Dendrite Boundary Composition on Stress Corrosion Cracking Performance of Alloy 52M Buttering Layer in Simulated Pressurized Water Reactor Primary Water-Reference-Cited by-同舟云学术

Effects of Matrix and Dendrite Boundary Composition on Stress Corrosion Cracking Performance of Alloy 52M Buttering Layer in Simulated Pressurized Water Reactor Primary Water

Published:2023-11-16 Issue:1 Volume:80 Page:68-84
ISSN:0010-9312
Container-title:Corrosion
language:en
Short-container-title:

Author:

Ma Jiarong¹²,Xiong Qi¹²,Xu Xinhe¹²,Cui Tongming¹²,Lu Zhanpeng¹²^ORCID,Shoji Tetsuo³^ORCID

Affiliation:

1. *Institute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200072, China.

2. **State Key Laboratory of Advanced Special Steels, Shanghai University, Shanghai, 200072, China.

3. ***New Industry Creation Hatchery Center, Tohoku University, Sendai, 980-8579, Japan.

Abstract

The oxidation and stress corrosion cracking (SCC) behaviors of Alloy 52M buttering (52Mb) layer were studied in simulated pressurized water reactor (PWR) primary water after microstructure characterization. The 52Mb layer was first postweld heat treatment (1st-PWHT) and follow-up PWHT (FU-PWHT). Two dilution zones (DZs) were found in both the 1st-PWHT and FU-PWHT 52Mb samples. FU-PWHT decreased the Cr content in the first DZ, enhancing the oxidation rate and accelerating the formation of the local oxidation penetration zone at the oxide/substrate interface. Lower Cr content and high Fe content in the DZ were detrimental to the SCC resistance of the 52Mb in PWR primary water.

Publisher

Association for Materials Protection and Performance (AMPP)

Subject

General Materials Science,General Chemical Engineering,General Chemistry

Link

https://meridian.allenpress.com/corrosion/article-pdf/80/1/68/3310165/4392.pdf

Reference43 articles.

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