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：29
|
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
收藏
页数：15
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