{"title":"使用新型 ZrCu 合金钎焊的 Zr-3/CoCrFeMnNi 高熵合金接头的显微结构和机械性能","authors":"","doi":"10.1016/j.matchar.2024.114411","DOIUrl":null,"url":null,"abstract":"<div><div>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)<sub>2</sub> layer + corpuscular β-Zr/tuberous Zr<sub>2</sub>(Cu,Ni,Co,Fe) + Zrss + tuberous Zr(Cr,Mn)<sub>2</sub> 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)<sub>2</sub>, and β-Zr precipitates developed with the elevated temperature, contributing to the plasticity improvement of Zr(Cr,Mn)<sub>2</sub> 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)<sub>2</sub> (159.7 kJ/mol), thereby the generation of CrMn was underlying to Zr(Cr,Mn)<sub>2</sub> during brazing. Moreover, grains orientations in CrMn and Zr(Cr,Mn)<sub>2</sub> 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)<sub>2</sub>/CrMn with the higher lattice mismatch degree of 26.0 % in I area, and propagated toward tuberous Zr<sub>2</sub>(Cu,Ni,Co,Fe) in II area.</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":null,"pages":null},"PeriodicalIF":4.8000,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microstructure and mechanical property of Zr-3/CoCrFeMnNi high-entropy alloys joints brazed using a novel ZrCu alloys\",\"authors\":\"\",\"doi\":\"10.1016/j.matchar.2024.114411\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>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)<sub>2</sub> layer + corpuscular β-Zr/tuberous Zr<sub>2</sub>(Cu,Ni,Co,Fe) + Zrss + tuberous Zr(Cr,Mn)<sub>2</sub> 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)<sub>2</sub>, and β-Zr precipitates developed with the elevated temperature, contributing to the plasticity improvement of Zr(Cr,Mn)<sub>2</sub> 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)<sub>2</sub> (159.7 kJ/mol), thereby the generation of CrMn was underlying to Zr(Cr,Mn)<sub>2</sub> during brazing. Moreover, grains orientations in CrMn and Zr(Cr,Mn)<sub>2</sub> 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)<sub>2</sub>/CrMn with the higher lattice mismatch degree of 26.0 % in I area, and propagated toward tuberous Zr<sub>2</sub>(Cu,Ni,Co,Fe) in II area.</div></div>\",\"PeriodicalId\":18727,\"journal\":{\"name\":\"Materials Characterization\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2024-09-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Characterization\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1044580324007927\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, CHARACTERIZATION & TESTING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Characterization","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1044580324007927","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}
Microstructure and mechanical property of Zr-3/CoCrFeMnNi high-entropy alloys joints brazed using a novel ZrCu alloys
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.
期刊介绍:
Materials Characterization features original articles and state-of-the-art reviews on theoretical and practical aspects of the structure and behaviour of materials.
The Journal focuses on all characterization techniques, including all forms of microscopy (light, electron, acoustic, etc.,) and analysis (especially microanalysis and surface analytical techniques). Developments in both this wide range of techniques and their application to the quantification of the microstructure of materials are essential facets of the Journal.
The Journal provides the Materials Scientist/Engineer with up-to-date information on many types of materials with an underlying theme of explaining the behavior of materials using novel approaches. Materials covered by the journal include:
Metals & Alloys
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Nanomaterials
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