{"title":"基于银-铜-钛 + W-AlN/Mo 箔/铌箔中间膜的 B4C/TC4 钎焊接头的界面微观结构和力学性能","authors":"Zhaoran Chen, Xuejian Liu, Zhaoquan Zhang","doi":"10.1177/14644207241258047","DOIUrl":null,"url":null,"abstract":"The microstructure and formation mechanism of the boron carbide (B<jats:sub>4</jats:sub>C) and titanium alloy (TC4) joints brazed with AgCuTi-AlN-W + Mo foil + Nb foil brazing filler were investigated. The effects of W/AlN content on microstructure and mechanical properties of the joints were discussed. To alleviate residual thermal stress, refractory metal foils such as Mo/Nb foils were added. Compared with the common composite interlayers, the interlayer formed via AgCuTi-AlN-W + Mo foil + Nb foil in-situ alloying had more and finer reinforcing phases without reducing the activity of the filler material. The ductile Mo/Nb foils contributed to accommodate the large strain mismatch by elastic deformation. The interfaces between the adjoining materials and the interlayer were well-bonded without any cracks. The most effective system was nickel-plated B<jats:sub>4</jats:sub>C + Mo foil + AgCuTi-3 wt% AlN-5 wt% W + AgCu foil + Nb foil + TC4, which exhibited the highest shear strength of approximately 115 MPa.","PeriodicalId":20630,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Interfacial microstructure and mechanical properties of B4C/TC4 brazed joints based on Ag-Cu-Ti + W-AlN/Mo foil/Nb foil interlayer\",\"authors\":\"Zhaoran Chen, Xuejian Liu, Zhaoquan Zhang\",\"doi\":\"10.1177/14644207241258047\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The microstructure and formation mechanism of the boron carbide (B<jats:sub>4</jats:sub>C) and titanium alloy (TC4) joints brazed with AgCuTi-AlN-W + Mo foil + Nb foil brazing filler were investigated. The effects of W/AlN content on microstructure and mechanical properties of the joints were discussed. To alleviate residual thermal stress, refractory metal foils such as Mo/Nb foils were added. Compared with the common composite interlayers, the interlayer formed via AgCuTi-AlN-W + Mo foil + Nb foil in-situ alloying had more and finer reinforcing phases without reducing the activity of the filler material. The ductile Mo/Nb foils contributed to accommodate the large strain mismatch by elastic deformation. The interfaces between the adjoining materials and the interlayer were well-bonded without any cracks. The most effective system was nickel-plated B<jats:sub>4</jats:sub>C + Mo foil + AgCuTi-3 wt% AlN-5 wt% W + AgCu foil + Nb foil + TC4, which exhibited the highest shear strength of approximately 115 MPa.\",\"PeriodicalId\":20630,\"journal\":{\"name\":\"Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-05-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1177/14644207241258047\",\"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":"Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1177/14644207241258047","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}
引用次数: 0
摘要
研究了使用 AgCuTi-AlN-W + Mo 箔 + Nb 箔钎焊填料钎焊的碳化硼（B4C）和钛合金（TC4）接头的微观结构和形成机理。讨论了 W/AlN 含量对接头微观结构和机械性能的影响。为了减轻残余热应力，加入了难熔金属箔，如 Mo/Nb 箔。与普通复合夹层相比，通过 AgCuTi-AlN-W + Mo 箔 + Nb 箔原位合金化形成的夹层具有更多、更细的增强相，同时不会降低填充材料的活性。韧性好的钼/铌箔通过弹性变形来适应较大的应变失配。相邻材料和夹层之间的界面结合良好，没有出现任何裂缝。最有效的体系是镀镍 B4C + Mo 箔 + AgCuTi-3 wt% AlN-5 wt% W + AgCu 箔 + Nb 箔 + TC4，其剪切强度最高，约为 115 兆帕。
Interfacial microstructure and mechanical properties of B4C/TC4 brazed joints based on Ag-Cu-Ti + W-AlN/Mo foil/Nb foil interlayer
The microstructure and formation mechanism of the boron carbide (B4C) and titanium alloy (TC4) joints brazed with AgCuTi-AlN-W + Mo foil + Nb foil brazing filler were investigated. The effects of W/AlN content on microstructure and mechanical properties of the joints were discussed. To alleviate residual thermal stress, refractory metal foils such as Mo/Nb foils were added. Compared with the common composite interlayers, the interlayer formed via AgCuTi-AlN-W + Mo foil + Nb foil in-situ alloying had more and finer reinforcing phases without reducing the activity of the filler material. The ductile Mo/Nb foils contributed to accommodate the large strain mismatch by elastic deformation. The interfaces between the adjoining materials and the interlayer were well-bonded without any cracks. The most effective system was nickel-plated B4C + Mo foil + AgCuTi-3 wt% AlN-5 wt% W + AgCu foil + Nb foil + TC4, which exhibited the highest shear strength of approximately 115 MPa.
期刊介绍：
The Journal of Materials: Design and Applications covers the usage and design of materials for application in an engineering context. The materials covered include metals, ceramics, and composites, as well as engineering polymers.
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