Assessment of Thermal Aging of Austenitic Stainless Steel Weld Metal by Using the Double Loop Electrochemical Potentiokinetic Reactivation Technique-Reference-Cited by-同舟云学术

Assessment of Thermal Aging of Austenitic Stainless Steel Weld Metal by Using the Double Loop Electrochemical Potentiokinetic Reactivation Technique

Published:2019-04-01 Issue:4 Volume:75 Page:377-388
ISSN:0010-9312
Container-title:CORROSION
language:en
Short-container-title:CORROSION

Author:

Lin Xiaodong¹²,Peng Qunjia¹³,Han En-Hou¹,Ke Wei¹

Affiliation:

1. Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China.

2. School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China.

3. Suzhou Nuclear Power Research Institute, Suzhou 215004, China.

Abstract

Double loop electrochemical potentiokinetic reactivation (DL-EPR) was applied to evaluate thermal aging of 308L stainless steel weld metal. It was found that the activation and reactivation peaks of DL-EPR curve were induced by dissolution of austenite and δ-ferrite, respectively. Before saturation of hardness, the linear relationship between reactivation ratio and hardness could be used for assessing the thermal aging-induced hardening. In the following thermal aging process, the reactivation ratio is applicable to assess the occurrence of the saturation of thermal aging-induced hardening. The results demonstrated that the DL-EPR test is applicable to assess the evolution of thermal aging.

Publisher

NACE International

Subject

General Materials Science,General Chemical Engineering,General Chemistry

Link

http://corrosionjournal.org/doi/pdf/10.5006/2902

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