{"title":"使用添加硼的钼-镍填充金属在高温下钎焊 TZM 接头可提高机械性能","authors":"Quanbin Lu, Junlan Huang, Zongye Ding, Dengwen Hu, Gaoming Lu, Weimin Long","doi":"10.1007/s40194-024-01783-9","DOIUrl":null,"url":null,"abstract":"<div><p>Controlling the growth of brittle intermetallic compounds (IMCs) and interfacial structure is crucial to obtaining desirable mechanical properties of the high-temperature brazing joints of titanium-zirconium-molybdenum (TZM) alloy. The effect of B addition on the mechanical properties of the joints and the microstructures in the brazing seam was investigated. The results show that the addition of 1%B enhances significantly the wettability of Mo-45Ni filler metal. The strength of the brazed joint with Mo-45Ni-1B filler metal is 30% higher than that of the joint with Mo-45Ni filler metal. The microstructure of the brazed joint with Mo-45Ni filler metal consisted of TZM/NiMo/eutectic (Mo + NiMo) + NiMo /NiMo/TZM. B addition led to the formation of Mo<sub>2</sub>B intermetallic compounds at the interface between NiMo layer and TZM alloy during heating and the precipitation of faceted Mo<sub>2</sub>B IMCs in the brazing seam during solidification, promoting the brittle-to-ductile fracture transition. This study provides a deep insight into the HT brazing of TZM alloy.</p></div>","PeriodicalId":809,"journal":{"name":"Welding in the World","volume":"68 9","pages":"2501 - 2509"},"PeriodicalIF":2.4000,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhanced mechanical properties of TZM joint brazed at high temperature using Mo-Ni filler metal with Boron addition\",\"authors\":\"Quanbin Lu, Junlan Huang, Zongye Ding, Dengwen Hu, Gaoming Lu, Weimin Long\",\"doi\":\"10.1007/s40194-024-01783-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Controlling the growth of brittle intermetallic compounds (IMCs) and interfacial structure is crucial to obtaining desirable mechanical properties of the high-temperature brazing joints of titanium-zirconium-molybdenum (TZM) alloy. The effect of B addition on the mechanical properties of the joints and the microstructures in the brazing seam was investigated. The results show that the addition of 1%B enhances significantly the wettability of Mo-45Ni filler metal. The strength of the brazed joint with Mo-45Ni-1B filler metal is 30% higher than that of the joint with Mo-45Ni filler metal. The microstructure of the brazed joint with Mo-45Ni filler metal consisted of TZM/NiMo/eutectic (Mo + NiMo) + NiMo /NiMo/TZM. B addition led to the formation of Mo<sub>2</sub>B intermetallic compounds at the interface between NiMo layer and TZM alloy during heating and the precipitation of faceted Mo<sub>2</sub>B IMCs in the brazing seam during solidification, promoting the brittle-to-ductile fracture transition. This study provides a deep insight into the HT brazing of TZM alloy.</p></div>\",\"PeriodicalId\":809,\"journal\":{\"name\":\"Welding in the World\",\"volume\":\"68 9\",\"pages\":\"2501 - 2509\"},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2024-05-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Welding in the World\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s40194-024-01783-9\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Welding in the World","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s40194-024-01783-9","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Enhanced mechanical properties of TZM joint brazed at high temperature using Mo-Ni filler metal with Boron addition
Controlling the growth of brittle intermetallic compounds (IMCs) and interfacial structure is crucial to obtaining desirable mechanical properties of the high-temperature brazing joints of titanium-zirconium-molybdenum (TZM) alloy. The effect of B addition on the mechanical properties of the joints and the microstructures in the brazing seam was investigated. The results show that the addition of 1%B enhances significantly the wettability of Mo-45Ni filler metal. The strength of the brazed joint with Mo-45Ni-1B filler metal is 30% higher than that of the joint with Mo-45Ni filler metal. The microstructure of the brazed joint with Mo-45Ni filler metal consisted of TZM/NiMo/eutectic (Mo + NiMo) + NiMo /NiMo/TZM. B addition led to the formation of Mo2B intermetallic compounds at the interface between NiMo layer and TZM alloy during heating and the precipitation of faceted Mo2B IMCs in the brazing seam during solidification, promoting the brittle-to-ductile fracture transition. This study provides a deep insight into the HT brazing of TZM alloy.
期刊介绍：
The journal Welding in the World publishes authoritative papers on every aspect of materials joining, including welding, brazing, soldering, cutting, thermal spraying and allied joining and fabrication techniques.
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