Effect of Plastic Deformation on Hydrogen Diffusion Behavior of Martensitic Steel in Hydrogen Absorption Environment

被引：12

作者：

Kim, Hye-Jin ^{[1
]}

Jung, Hyun-Yeong ^{[1
,2
]}

Kwon, Tae-Woo ^{[1
]}

Chung, Yoo-Dong ^{[1
]}

机构：

[1] Hyundai Steel, Tech Res Ctr, Steel Applicat Engn Team, 1480 Buckbusaneop Ro, Dangjin Si, Chungnam, South Korea

[2] Korea Univ, Dept Mat Sci & Engn, 145 Anam Ro, Seoul 02841, South Korea

来源：

MATERIALS TRANSACTIONS | 2019年 / 60卷 / 08期

关键词：

low alloy steel; TEM; hydrogen permeation; thermal desorption spectroscopy; HIGH-STRENGTH STEEL; MATERIALS SELECTION; ASSISTED CRACKING; STAINLESS-STEEL; TRAPPING STATES; PERMEATION; EMBRITTLEMENT; DEGRADATION; DISLOCATION; TRANSPORT;

D O I：

10.2320/matertrans.M2019042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study investigates the effect of plastic deformation on hydrogen permeation behavior of martensitic steel using electrochemical hydrogen permeation methods. The values of hydrogen diffusivity in plastically deformed martensitic steel were investigated from a microstructural aspect. Additionally, thermal desorption spectroscopy was performed to verify the tendency of plastic deformation due to hydrogen trapping. It was observed that as the plastic strain applied on the martensitic steel increased, value of hydrogen diffusion coefficient decreased and hydrogen concentration increased. The decrease in hydrogen diffusion coefficient and an increase in hydrogen trapping in the plastically deformed martensitic steel were attributed to an increase in reversible trapping sites caused by strain- induced dislocations.

引用

页码：1614 / 1623

页数：10

共 52 条

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