Microstructure and mechanical property of Zr-3/CoCrFeMnNi high-entropy alloys joints brazed using a novel Zr–Cu alloys

Nan Jiang; Hong Bian; Xiaoguo Song; Hyoung Seop Kim; Danyang Lin; Weimin Long; Sujuan Zhong; Lianhui Jia; Daijun Hu

doi:10.1016/j.matchar.2024.114411

Microstructure and mechanical property of Zr-3/CoCrFeMnNi high-entropy alloys joints brazed using a novel Zr–Cu alloys

Nan Jiang
, Hong Bian^*
, Xiaoguo Song
, Hyoung Seop Kim
, Danyang Lin
, Weimin Long
, Sujuan Zhong
, Lianhui Jia
, Daijun Hu

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
Pohang University of Science and Technology
Shandong Institute of Shipbuilding Technology
Zhengzhou Research Institute of Mechanical Engineering
China Railway Group Limited
Sichuan Aerospace Long March Equipment Manufacturing Co., Ltd.

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

In this paper, the Zr53Cu47 (wt%) alloys were designed by vacuum melting for the joining Zirconium (Zr) alloys to equiatomic CoCrFeMnNi high entropy alloys (HEA). The wetting, microstructure, growth kinetics of reaction layer, shear strength and rupture behavior of joints evolved with temperature were specifically deliberated. The interfacial reactions were determined to be CrMn layer/Zr(Cr,Mn)₂ layer + corpuscular β-Zr/tuberous Zr₂(Cu,Ni,Co,Fe) + Zrss + tuberous Zr(Cr,Mn)₂ from HEA to Zr-3. Herein, the β-Zr precipitates with the sterling plasticity had the semi-coherent relationship with the matrix phase Zr(Cr,Mn)₂, and β-Zr precipitates developed with the elevated temperature, contributing to the plasticity improvement of Zr(Cr,Mn)₂ and the growth of joints properties. The activation energy (Q) of CrMn was 127.0 kJ/mol, significantly less than that that of Zr(Cr,Mn)₂ (159.7 kJ/mol), thereby the generation of CrMn was underlying to Zr(Cr,Mn)₂ during brazing. Moreover, grains orientations in CrMn and Zr(Cr,Mn)₂ were stochastically dispersed. The strength of Zr-3/Zr53Cu47/HEA achieved peak of 136.8 MPa when brazed at 970 °C/10 min. Cracks were preferably started at the non-coherent interface of Zr(Cr,Mn)₂/CrMn with the higher lattice mismatch degree of 26.0 % in I area, and propagated toward tuberous Zr₂(Cu,Ni,Co,Fe) in II area.

Original language	English
Article number	114411
Journal	Materials Characterization
Volume	217
DOIs	https://doi.org/10.1016/j.matchar.2024.114411
State	Published - Nov 2024

Keywords

Brazed joints
Growth kinetics
Interfacial reaction
Phase relationship
Shear strength

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10.1016/j.matchar.2024.114411

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@article{378e65fe9d174017abae1654663ddba5,

title = "Microstructure and mechanical property of Zr-3/CoCrFeMnNi high-entropy alloys joints brazed using a novel Zr–Cu alloys",

abstract = "In this paper, the Zr53Cu47 (wt\%) alloys were designed by vacuum melting for the joining Zirconium (Zr) alloys to equiatomic CoCrFeMnNi high entropy alloys (HEA). The wetting, microstructure, growth kinetics of reaction layer, shear strength and rupture behavior of joints evolved with temperature were specifically deliberated. The interfacial reactions were determined to be CrMn layer/Zr(Cr,Mn)2 layer + corpuscular β-Zr/tuberous Zr2(Cu,Ni,Co,Fe) + Zrss + tuberous Zr(Cr,Mn)2 from HEA to Zr-3. Herein, the β-Zr precipitates with the sterling plasticity had the semi-coherent relationship with the matrix phase Zr(Cr,Mn)2, and β-Zr precipitates developed with the elevated temperature, contributing to the plasticity improvement of Zr(Cr,Mn)2 and the growth of joints properties. The activation energy (Q) of CrMn was 127.0 kJ/mol, significantly less than that that of Zr(Cr,Mn)2 (159.7 kJ/mol), thereby the generation of CrMn was underlying to Zr(Cr,Mn)2 during brazing. Moreover, grains orientations in CrMn and Zr(Cr,Mn)2 were stochastically dispersed. The strength of Zr-3/Zr53Cu47/HEA achieved peak of 136.8 MPa when brazed at 970 °C/10 min. Cracks were preferably started at the non-coherent interface of Zr(Cr,Mn)2/CrMn with the higher lattice mismatch degree of 26.0 \% in I area, and propagated toward tuberous Zr2(Cu,Ni,Co,Fe) in II area.",

keywords = "Brazed joints, Growth kinetics, Interfacial reaction, Phase relationship, Shear strength",

author = "Nan Jiang and Hong Bian and Xiaoguo Song and Kim, \{Hyoung Seop\} and Danyang Lin and Weimin Long and Sujuan Zhong and Lianhui Jia and Daijun Hu",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier Inc.",

year = "2024",

month = nov,

doi = "10.1016/j.matchar.2024.114411",

language = "英语",

volume = "217",

journal = "Materials Characterization",

issn = "1044-5803",

publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - Microstructure and mechanical property of Zr-3/CoCrFeMnNi high-entropy alloys joints brazed using a novel Zr–Cu alloys

AU - Jiang, Nan

AU - Bian, Hong

AU - Song, Xiaoguo

AU - Kim, Hyoung Seop

AU - Lin, Danyang

AU - Long, Weimin

AU - Zhong, Sujuan

AU - Jia, Lianhui

AU - Hu, Daijun

PY - 2024/11

Y1 - 2024/11

N2 - In this paper, the Zr53Cu47 (wt%) alloys were designed by vacuum melting for the joining Zirconium (Zr) alloys to equiatomic CoCrFeMnNi high entropy alloys (HEA). The wetting, microstructure, growth kinetics of reaction layer, shear strength and rupture behavior of joints evolved with temperature were specifically deliberated. The interfacial reactions were determined to be CrMn layer/Zr(Cr,Mn)2 layer + corpuscular β-Zr/tuberous Zr2(Cu,Ni,Co,Fe) + Zrss + tuberous Zr(Cr,Mn)2 from HEA to Zr-3. Herein, the β-Zr precipitates with the sterling plasticity had the semi-coherent relationship with the matrix phase Zr(Cr,Mn)2, and β-Zr precipitates developed with the elevated temperature, contributing to the plasticity improvement of Zr(Cr,Mn)2 and the growth of joints properties. The activation energy (Q) of CrMn was 127.0 kJ/mol, significantly less than that that of Zr(Cr,Mn)2 (159.7 kJ/mol), thereby the generation of CrMn was underlying to Zr(Cr,Mn)2 during brazing. Moreover, grains orientations in CrMn and Zr(Cr,Mn)2 were stochastically dispersed. The strength of Zr-3/Zr53Cu47/HEA achieved peak of 136.8 MPa when brazed at 970 °C/10 min. Cracks were preferably started at the non-coherent interface of Zr(Cr,Mn)2/CrMn with the higher lattice mismatch degree of 26.0 % in I area, and propagated toward tuberous Zr2(Cu,Ni,Co,Fe) in II area.

AB - In this paper, the Zr53Cu47 (wt%) alloys were designed by vacuum melting for the joining Zirconium (Zr) alloys to equiatomic CoCrFeMnNi high entropy alloys (HEA). The wetting, microstructure, growth kinetics of reaction layer, shear strength and rupture behavior of joints evolved with temperature were specifically deliberated. The interfacial reactions were determined to be CrMn layer/Zr(Cr,Mn)2 layer + corpuscular β-Zr/tuberous Zr2(Cu,Ni,Co,Fe) + Zrss + tuberous Zr(Cr,Mn)2 from HEA to Zr-3. Herein, the β-Zr precipitates with the sterling plasticity had the semi-coherent relationship with the matrix phase Zr(Cr,Mn)2, and β-Zr precipitates developed with the elevated temperature, contributing to the plasticity improvement of Zr(Cr,Mn)2 and the growth of joints properties. The activation energy (Q) of CrMn was 127.0 kJ/mol, significantly less than that that of Zr(Cr,Mn)2 (159.7 kJ/mol), thereby the generation of CrMn was underlying to Zr(Cr,Mn)2 during brazing. Moreover, grains orientations in CrMn and Zr(Cr,Mn)2 were stochastically dispersed. The strength of Zr-3/Zr53Cu47/HEA achieved peak of 136.8 MPa when brazed at 970 °C/10 min. Cracks were preferably started at the non-coherent interface of Zr(Cr,Mn)2/CrMn with the higher lattice mismatch degree of 26.0 % in I area, and propagated toward tuberous Zr2(Cu,Ni,Co,Fe) in II area.

KW - Brazed joints

KW - Growth kinetics

KW - Interfacial reaction

KW - Phase relationship

KW - Shear strength

UR - https://www.scopus.com/pages/publications/85205300137

U2 - 10.1016/j.matchar.2024.114411

DO - 10.1016/j.matchar.2024.114411

M3 - 文章

AN - SCOPUS:85205300137

SN - 1044-5803

VL - 217

JO - Materials Characterization

JF - Materials Characterization

M1 - 114411

ER -

Microstructure and mechanical property of Zr-3/CoCrFeMnNi high-entropy alloys joints brazed using a novel Zr–Cu alloys

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Keywords

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