S. F. Chen, Y. S. Wang, D. B. Sun, X. G. Xing, J. Gao, H. J. Hei, Y. L. Wang, S. W. Yu, J. P. Lin
{"title":"使用银铜填料通过真空钎焊获得的钛膜改性蓝宝石/高铌钛铝合金接头的微观结构和机械性能","authors":"S. F. Chen, Y. S. Wang, D. B. Sun, X. G. Xing, J. Gao, H. J. Hei, Y. L. Wang, S. W. Yu, J. P. Lin","doi":"10.1007/s11837-024-06871-1","DOIUrl":null,"url":null,"abstract":"<div><p>The aim of this study is to evaluate the effect of Ti films prepared by plasma surface alloying technique on the sapphire for improving the bonding properties of sapphire/γ-TiAl alloy. The Ti films contained pure Ti, oxides (e.g., Ti<sub>2</sub>O and TiO<sub>2</sub>) and intermetallic (Ti<sub>3</sub>Al) because of the deposition and chemical reactions between Ti element and sapphire. The wettability and brazing quality for sapphire/γ-TiAl alloy have been improved effectively by formation of new phases such as TiCuAl and AlCu(Ti,Nb) and Cu<sub>4</sub>Ti and Ti<sub>3</sub>Cu<sub>3</sub>O phases. The results show that with the increased brazing temperature, the width of diffusion and reaction regions enlarged because of the diffusion and reaction, leading to the raised shear strength of the joints. After brazing at 875°C for 10 min, the maximum shear strength reached as high as 158 MPa. Therefore, the current results provide a promising future for brazing the sapphire/γ-TiAl alloy.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"76 12","pages":"7304 - 7314"},"PeriodicalIF":2.1000,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microstructure and Mechanical Property of Titanium Film-Modified Sapphire/High Nb-TiAl Alloy Joints Using Ag-Cu Filler by Vacuum Brazing\",\"authors\":\"S. F. Chen, Y. S. Wang, D. B. Sun, X. G. Xing, J. Gao, H. J. Hei, Y. L. Wang, S. W. Yu, J. P. Lin\",\"doi\":\"10.1007/s11837-024-06871-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The aim of this study is to evaluate the effect of Ti films prepared by plasma surface alloying technique on the sapphire for improving the bonding properties of sapphire/γ-TiAl alloy. The Ti films contained pure Ti, oxides (e.g., Ti<sub>2</sub>O and TiO<sub>2</sub>) and intermetallic (Ti<sub>3</sub>Al) because of the deposition and chemical reactions between Ti element and sapphire. The wettability and brazing quality for sapphire/γ-TiAl alloy have been improved effectively by formation of new phases such as TiCuAl and AlCu(Ti,Nb) and Cu<sub>4</sub>Ti and Ti<sub>3</sub>Cu<sub>3</sub>O phases. The results show that with the increased brazing temperature, the width of diffusion and reaction regions enlarged because of the diffusion and reaction, leading to the raised shear strength of the joints. After brazing at 875°C for 10 min, the maximum shear strength reached as high as 158 MPa. Therefore, the current results provide a promising future for brazing the sapphire/γ-TiAl alloy.</p></div>\",\"PeriodicalId\":605,\"journal\":{\"name\":\"JOM\",\"volume\":\"76 12\",\"pages\":\"7304 - 7314\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-10-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JOM\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11837-024-06871-1\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"JOM","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11837-024-06871-1","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Microstructure and Mechanical Property of Titanium Film-Modified Sapphire/High Nb-TiAl Alloy Joints Using Ag-Cu Filler by Vacuum Brazing
The aim of this study is to evaluate the effect of Ti films prepared by plasma surface alloying technique on the sapphire for improving the bonding properties of sapphire/γ-TiAl alloy. The Ti films contained pure Ti, oxides (e.g., Ti2O and TiO2) and intermetallic (Ti3Al) because of the deposition and chemical reactions between Ti element and sapphire. The wettability and brazing quality for sapphire/γ-TiAl alloy have been improved effectively by formation of new phases such as TiCuAl and AlCu(Ti,Nb) and Cu4Ti and Ti3Cu3O phases. The results show that with the increased brazing temperature, the width of diffusion and reaction regions enlarged because of the diffusion and reaction, leading to the raised shear strength of the joints. After brazing at 875°C for 10 min, the maximum shear strength reached as high as 158 MPa. Therefore, the current results provide a promising future for brazing the sapphire/γ-TiAl alloy.
期刊介绍：
JOM is a technical journal devoted to exploring the many aspects of materials science and engineering. JOM reports scholarly work that explores the state-of-the-art processing, fabrication, design, and application of metals, ceramics, plastics, composites, and other materials. In pursuing this goal, JOM strives to balance the interests of the laboratory and the marketplace by reporting academic, industrial, and government-sponsored work from around the world.
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