Journal
SCRIPTA MATERIALIA
Volume 184, Issue -, Pages 70-73Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2020.03.038
Keywords
Austenitic steels; Stainless steels; Hydrogen embrittlement; Nitrogen; Hydrogen diffusion
Categories
Funding
- National Research Foundation of Korea (NRF) [2020R1A2B5B01001900]
- National Research Foundation of Korea [2020R1A2B5B01001900] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Hydrogen embrittlement behavior of three austenitic stainless steels with 0.1-0.3 wt% N was investigated by electro-chemical charging of hydrogen. The degradation of tensile properties was alleviated by nitrogen. Hydrogen permeation testing revealed that the increase of nitrogen content decreased the hydrogen diffusivity, and thereby, reduced the depth of hydrogen-affected zones. Intergranular cracks were formed in an early stage of deformation by hydrogen charging and reduced the strain-hardening rate. The cracks propagated further into the grains along martensite/austenite interfaces especially in steels with less nitrogen. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available