Effects of Hydrogen Charging on Mechanical Properties of CLAM Steel at Different Strain Rates
作者机构：School of Materials Science and EngineeringUniversity of Science and Technology of ChinaShenyang110016China Shi-changxu Innovation Center for Advanced MaterialsInstitute of Metal ResearchChinese Academy of SciencesShenyang110016China CAS Key Laboratory of Nuclear Materials and Safety AssessmentInstitute of Metal ResearchChinese Academy of SciencesShenyang110016China
出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)
年 卷 期：2023年第36卷第7期
页 面：1203-1210页
核心收录：
学科分类：08[工学] 0707[理学-海洋科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 0703[理学-化学] 080201[工学-机械制造及其自动化]
基 金：supported by the Youth Innovation Promotion Association CAS
主 题：China low-activation martensitic(CLAM)steel Hydrogen embrittlement Mechanical properties Hydride
摘 要：The China low-activation martensitic(CLAM)steel has been proposed as a candidate structural material for nuclear fusion reactors.It is essential to study the influence of hydrogen charging and strain rate on the tensile behavior of CLAM steel considering its service environment.In this study,CLAM steel was investigated using tensile tests operated at room temperature before and after hydrogen charging.The results showed that the elongation loss increased significantly with the increase of the hydrogen charging current density at either a low or a high strain rate,which is related to the hydrogen content in the steel.The hydride was systematically studied,including the morphology and the thermal stability as well as the effects on mechanical properties.The possible mechanism of the formation of hydride during hydrogen charging has been analyzed based on the interaction between alloying elements and hydrogen.
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