常州大学学报（自然科学版）2024，Vol.36Issue(4)：63-70,8.DOI:10.3969/j.issn.2095-0411.2024.04.008
基于纳米压痕试验的氢致双相不锈钢微力学性能变化
Hydrogen-induced micromechanical property evolution of duplex stainless steel based on nanoindentation
摘要
Abstract
In this paper,the hydrogen-induced micromechanical property evolution of ferritic-austenitic duplex stainless steel was studied by nanoindentation and in situ hydrogen-charging method.The 2205 duplex stainless steel was selected as the research object in experiments,during which the nanohard-ness variation of ferrite and austenite was mainly analyzed,based on the obtained nanoindentation load-displacement curves under different hydrogen-charging time.The results show that the nanohardness of ferrite and austenite increases with hydrogen-charging time,presenting the hydrogen-induced hard-ening performance.After 3 hours hydrogen charging,the hydrogen-induced hardening effect of the two phases reaches saturation state,and the degree of increased nanohardness of austenite is higher than that of ferrite.The results show the hydrogen-induced hardening difference of ferrite and austen-ite,and demonstrate the research advantages of nanoindentation method in terms of characterizing hy-drogen damage in the micro-scale.关键词
双相不锈钢/氢脆/纳米压痕/纳米硬度Key words
duplex stainless steel/hydrogen embrittlement/nanoindentation/nanohardness分类
矿业与冶金引用本文复制引用
陶平,刘红梅,彭剑,刘雪东..基于纳米压痕试验的氢致双相不锈钢微力学性能变化[J].常州大学学报（自然科学版）,2024,36(4):63-70,8.基金项目
国家自然科学基金青年科学基金项目(52205142) （52205142）
江苏省高等学校基础科学研究面上资助项目(22KJB460012) （22KJB460012）
江苏省自然科学基金资助项目(BK20210854) （BK20210854）
江苏省高校自然科学基金资助项目(20KJB470009). （20KJB470009）
