The liquid metal embrittlement of a reactive system at room temperature: α-brasses in contact with the liquid eutectic Ga-In

被引：0

作者：

Ezequiel, Marco ^{[1
]}

Serre, Ingrid Proriol ^{[1
]}

Auger, Thierry ^{[2
]}

Heripre, Eva ^{[2
,3
]}

Hadjem-Hamouche, Zehoua ^{[2
]}

Perriere, Loic ^{[4
]}

机构：

[1] Univ Lille, UMR 8207, Cent Lille, CNRS,INRAE,UMET Unite Mat & Transformat, F-59000 Lille, France

[2] HESAM Univ, Arts & Metiers Inst Technol, PIMM Lab, CNRS,CNAM, 151 Blvd Hop, F-75013 Paris, France

[3] Univ Paris Saclay, CentraleSupelec, CNRS, LMPS Lab Mecan Paris Saclay,ENS Paris Saclay, F-91190 Gif Sur Yvette, France

[4] Univ Paris Est, Inst Chim & Mat Paris Est, UMR 7182, CNRS, Thiais, France

来源：

ENGINEERING FAILURE ANALYSIS | 2024年 / 164卷

关键词：

Liquid metal embrittlement; alpha-brasses; Gallium-indium eutectic; In situ observation; Finite element analysis; Wetting; CRACK-PROPAGATION; T91; STEEL; INITIATION;

D O I：

10.1016/j.engfailanal.2024.108694

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

We studied the liquid metal embrittlement (LME) at room temperature of alpha-brasses by the liquid eutectic Ga-In (EGaIn). The EGaIn partially wets the alpha-brasses and forms the CuGa2 intermetallic. 3-point bending tests, Finite Element Analysis, and in situ testing were conducted. When LME occurs, there is a ductile fracture followed by an intergranular brittle fracture that propagates through the zones with the highest plastic strain. The LME sensitivity increases with higher strain rates, higher Zn content, and higher work hardening rates, suggesting a significant role of dislocation mobility in LME and a lack of influence from the CuGa2 intermetallic.

引用

页数：17

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