Oxidation and tensile behavior of ferritic/martensitic steels after exposure to lead-bismuth eutectic

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:670

Article

Liu, Jian^1,2  Shi, Quanqiang^1,2  Luan, He^1,2  Yan, Wei¹  Sha, Wei³  Wang, Wei¹  Shan, Yiyin¹  Yang, Ke¹ 

[1] Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Queens Univ Belfast, Sch Nat & Built Environm, Belfast BT9 5AG, Antrim, North Ireland

关键词: Electron microscopy;    Light microscopy;    Steel;    Oxidation;    Mechanical characterization;    Fracture;   

DOI  :  10.1016/j.msea.2016.05.100

来源: Elsevier

【 摘 要 】

Two ferritic/martensitic steels, T91 steel and newly developed SIMP steel, were subject to tensile test after being oxidized in the liquid lead-bismuth eutectic (LBE) at 873 K for 500 h, 1000 h and 2000 h. Tensile tests were also carried out on the steels only thermally aged at 873 K. The result shows that thermal aging has no effect. Exposure to LBE at 873 K leads to a slight decrease in strength, but a large decrease in elongation when tested at 873 K. When tested at 873 K after 2000 h exposure, the tensile strength of T91 decreases slightly, and elongation from 39% to 21%. For SIMP, the decreases are slightly and from 44% to 28%, for tensile strength and elongation, respectively. The room temperature strength has slightly larger percentage reductions after the LBE exposure, but the elongation changes little. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

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