Liquid metal embrittlement susceptibility of an oxide-dispersion strengthened FeCrAl alloy in contact with liquid lead-bismuth eutectic at 350?C

被引：17

作者：

Ma, Haibin ^{[1
]}

Gong, Xing ^{[2
,3
]}

Zhu, Jingting ^{[4
]}

Chen, Haitao ^{[3
]}

Li, Jing ^{[5
]}

Liu, Yang ^{[1
]}

Ren, Qisen ^{[1
]}

Zhang, Feifei ^{[1
]}

Pang, Zhengzheng ^{[1
]}

机构：

[1] China Nucl Power Technol Res Inst, Nucl Fuel & Mat Dept, Shenzhen 518026, Peoples R China

[2] Shenzhen Univ, Coll Phys & Optoelect Engn, Dept Nucl Sci & Technol, Adv Nucl Energy Res Team, Shenzhen 518060, Peoples R China

[3] Shenzhen Univ, Inst Adv Study Nucl Energy & Safety, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China

[4] Shenzhen Univ, Inst Microscale Optoelect, Int Collaborat Lab 2D Mat Optoelect Sci & Technol, Minist Educ, Shenzhen 518060, Peoples R China

[5] Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China

来源：

CORROSION SCIENCE | 2022年 / 207卷

基金：

中国国家自然科学基金;

关键词：

Lead-bismuth eutectic (LBE); Liquid metal embrittlement (LME); ODS FeCrAl; Cleavage; Secondary cracks; AUSTENITIC STEELS; MARTENSITIC STEEL; FLOWING LBE; T91; STEEL; DEGREES-C; CORROSION; OXYGEN; BEHAVIOR; EXPOSURE; FATIGUE;

D O I：

10.1016/j.corsci.2022.110603

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Liquid metal embrittlement (LME) susceptibility of an oxide-dispersion strengthened (ODS) Fe14Cr4.5Al0.5Y2O3 (wt%) alloy in lead-bismuth eutectic (LBE) at 350 degrees C has been studied using slow strain rate tensile tests. The results showed that LME occurred in this alloy regardless of the oxygen concentration dissolved in LBE, but an oxygen-rich condition led to a much smaller area of cleavage on fracture surfaces as compared to an oxygenpoor condition. Most interestingly, deep secondary cracks were observed in all specimens tested in either oxygenrich or -poor LBE, which result from LME-induced cracking of the (prior) elongated grain boundaries formed during hot rotary swaging.

引用

页数：12

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