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author:

Gong, Xing (Gong, Xing.) [1] | Xiang, Congying (Xiang, Congying.) [2] | Auger, Thierry (Auger, Thierry.) [3] | Chen, Jiajun (Chen, Jiajun.) [4] | Liang, Xiaocong (Liang, Xiaocong.) [5] | Yu, Zhiyang (Yu, Zhiyang.) [6] | Short, Michael P (Short, Michael P.) [7] | Song, Min (Song, Min.) [8] | Yin, Yuan (Yin, Yuan.) [9]

Indexed by:

EI

Abstract:

This paper reports a new liquid metal embrittlement (LME) system in which a dual-phase Al0.7CoCrFeNi (equimolar fraction) high-entropy alloy (HEA) is embrittled by lead-bismuth eutectic (LBE) at 350 and 500°C. At 350°C, (Ni, Al)-rich BCC phase is embrittled, leading to intragrain cracking within this phase, while the predominant cracking mode changes to BCC/FCC phase boundary decohesion at 500°C. At both temperatures, cracks are rarely seen in the (Co, Cr, Fe)-rich FCC phase, indicating that this phase is immune to LME. Furthermore, the results suggest a transition from an adsorption-dominated LME mechanism at 350°C to a phase boundary wetting-dominated LME mechanism at 500°C. © 2020

Keyword:

Bismuth Embrittlement Entropy Eutectics High-entropy alloys Liquid metals Oxygen

Community:

  • [ 1 ] [Gong, Xing]Advanced Nuclear Energy Research Team, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen; 518060, China
  • [ 2 ] [Xiang, Congying]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350002, China
  • [ 3 ] [Auger, Thierry]PIMM, Arts et Metiers ParisTech, CNRS, Cnam, HESAM Université, 151 Blvd. de L'Hôpital, Paris; 75013, France
  • [ 4 ] [Chen, Jiajun]Advanced Nuclear Energy Research Team, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen; 518060, China
  • [ 5 ] [Liang, Xiaocong]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350002, China
  • [ 6 ] [Yu, Zhiyang]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350002, China
  • [ 7 ] [Short, Michael P]Department of Nuclear Science and Engineering, Massachusetts Institute of Technology (MIT), Cambridge; MA; 02139, United States
  • [ 8 ] [Song, Min]State Key Laboratory of Powder Metallurgy, Central South University, Changsha; 410083, China
  • [ 9 ] [Yin, Yuan]Advanced Nuclear Energy Research Team, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen; 518060, China

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Source :

Scripta Materialia

ISSN: 1359-6462

Year: 2021

Volume: 194

6 . 3 0 2

JCR@2021

5 . 3 0 0

JCR@2023

ESI HC Threshold:142

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 32

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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