Comparative study on the stress corrosion cracking of a new Ni-advanced high strength steel prepared by TMCP, direct quenching, and quenching & tempering

被引：32
作者：
Jia, Jinghuan [1 ,2 ]
Liu, Zhiyong [1 ,2 ]
Li, Xiaogang [1 ,2 ]
Du, Cuiwei [1 ,2 ]
Li, Wei [3 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China
[2] Natl Mat Corros & Protect Data Ctr, Beijing 100083, Peoples R China
[3] Aero Engine Corp China, Beijing Inst Aeronaut Mat, Beijing 100095, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2021年 / 825卷
关键词：
Stress corrosion cracking; Ni-advanced steel; Thermo-mechanical control process; Direct quenching; Quenching & tempering; HYDROGEN-INDUCED CRACKING; LOW-CARBON STEEL; PIPELINE STEEL; E690; STEEL; EMBRITTLEMENT BEHAVIOR; DISLOCATION DENSITY; TRAPPING SITES; MICROSTRUCTURE; SUSCEPTIBILITY; STRAIN;
D O I：
10.1016/j.msea.2021.141854
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The stress corrosion cracking (SCC) behaviors of Ni-advanced steels prepared by thermo-mechanical control process (TMCP), direct quenching (DQ), and quenching & tempering (QT) are examined by microstructural characterization, electrochemical test, hydrogen permeation test, and slow strain rate tensile test under different applied potentials. The results show that the SCC susceptibility of these Ni-advanced steels is low at open circuit potential in the simulated environment, and the SCC mechanism is mainly controlled by the anodic dissolution process. However, the SCC sensitivity increases significantly at -1200 mV, and the SCC mechanism becomes hydrogen-induced cracking. The SCC sensitivity of the test steels decreases in the following order: TMCP steel > QT steel > DQ steel, which is primarily attributed to the microstructural difference.
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页数：15
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