A comparative study on liquid metal embrittlement susceptibility of three FeCrAl ferritic alloys in contact with liquid lead-bismuth eutectic at 350?C

被引：32

作者：

Gong, Xing ^{[1
]}

Chen, Jiajun ^{[1
]}

Xiang, Congying ^{[2
]}

Yu, Zhiyang ^{[2
]}

Gong, Haoran ^{[3
]}

Yin, Yuan ^{[1
]}

机构：

[1] Shenzhen Univ, Coll Phys & Optoelect Engn, Adv Nucl Energy Res Team, Shenzhen 518060, Peoples R China

[2] Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China

[3] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China

来源：

CORROSION SCIENCE | 2021年 / 183卷

基金：

中国国家自然科学基金;

关键词：

FeCrAl; LBE; LME; Cleavage; Wetting; 550; DEGREES-C; DISSOLUTION CORROSION; T91; STEEL; AUSTENITIC STEELS; STAINLESS-STEELS; OXIDE SCALES; FLOWING LBE; OXYGEN; PB; 316L;

D O I：

10.1016/j.corsci.2021.109346

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Liquid metal embrittlement (LME) susceptibility of three FeCrAl alloys (i.e., Fe10Cr4Al, Fe15Cr4Al and Fe10Cr6Al, wt%) was tested in oxygen-saturated and -depleted liquid lead-bismuth eutectic (LBE) at 350 ?C using slow strain rate tensile tests. The results show that all three alloys are very susceptible to LME, manifested by a severe reduction in total elongation to failure and prevailing cleavage on fracture surfaces. LME is delayed in oxygen-saturated LBE, due to a dewetting effect of surface oxides. In three alloys, Fe10Cr6Al is most susceptible to LME, especially in presence of oxygen-depleted LBE.

引用

页数：15

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