Microstructure and Interfacial Reactions of Resistance Brazed Lap Joints between TC4 Titanium Alloy and 304 Stainless Steel Using Metal Powder Interlayers
In the brazing joint between titanium alloy and stainless steel, a lot of Fe-Ti intermetallic compounds (IMCs) can be easily formed to make joints crack. A lap resistance brazing process with metal powder layers on both sides of the filler metal was used to solve this problem. The microstructure and...
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MDPI AG
2021-01-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/1/180 |
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| author | Pengxian Zhang Zhizhong Fang Shilong Li |
| author_facet | Pengxian Zhang Zhizhong Fang Shilong Li |
| author_sort | Pengxian Zhang |
| collection | DOAJ |
| description | In the brazing joint between titanium alloy and stainless steel, a lot of Fe-Ti intermetallic compounds (IMCs) can be easily formed to make joints crack. A lap resistance brazing process with metal powder layers on both sides of the filler metal was used to solve this problem. The microstructure and metallurgical behavior of joints was studied through comparative experiments. The result showed that Nb, V and Cr powders and the solder reacted with the base material to form a new phase, which replaced the Ti-Fe brittle phase in the joint. At the same time, metal powder clusters hindered the diffusion of Ti and Fe elements and improved the distribution of new phases. The established atomic reaction model revealed the metallurgical behavior and formation mechanism of the joints. Therefore, the intervening position of the metal powder layer and the multi-reaction zone structure are the main reasons the shear strength of joints is improved. |
| first_indexed | 2024-03-10T13:33:23Z |
| format | Article |
| id | doaj.art-e264d5a36613454eaa36e3a0c19e6b7c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T13:33:23Z |
| publishDate | 2021-01-01 |
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| record_format | Article |
| series | Materials |
| spelling | doaj.art-e264d5a36613454eaa36e3a0c19e6b7c2023-11-21T07:45:46ZengMDPI AGMaterials1996-19442021-01-0114118010.3390/ma14010180Microstructure and Interfacial Reactions of Resistance Brazed Lap Joints between TC4 Titanium Alloy and 304 Stainless Steel Using Metal Powder InterlayersPengxian Zhang0Zhizhong Fang1Shilong Li2State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, ChinaIn the brazing joint between titanium alloy and stainless steel, a lot of Fe-Ti intermetallic compounds (IMCs) can be easily formed to make joints crack. A lap resistance brazing process with metal powder layers on both sides of the filler metal was used to solve this problem. The microstructure and metallurgical behavior of joints was studied through comparative experiments. The result showed that Nb, V and Cr powders and the solder reacted with the base material to form a new phase, which replaced the Ti-Fe brittle phase in the joint. At the same time, metal powder clusters hindered the diffusion of Ti and Fe elements and improved the distribution of new phases. The established atomic reaction model revealed the metallurgical behavior and formation mechanism of the joints. Therefore, the intervening position of the metal powder layer and the multi-reaction zone structure are the main reasons the shear strength of joints is improved.https://www.mdpi.com/1996-1944/14/1/180resistance brazingTi-Fe intermetallic compounds (IMCs)metal powder layermulti-reaction zone structuremetallurgical mechanism |
| spellingShingle | Pengxian Zhang Zhizhong Fang Shilong Li Microstructure and Interfacial Reactions of Resistance Brazed Lap Joints between TC4 Titanium Alloy and 304 Stainless Steel Using Metal Powder Interlayers Materials resistance brazing Ti-Fe intermetallic compounds (IMCs) metal powder layer multi-reaction zone structure metallurgical mechanism |
| title | Microstructure and Interfacial Reactions of Resistance Brazed Lap Joints between TC4 Titanium Alloy and 304 Stainless Steel Using Metal Powder Interlayers |
| title_full | Microstructure and Interfacial Reactions of Resistance Brazed Lap Joints between TC4 Titanium Alloy and 304 Stainless Steel Using Metal Powder Interlayers |
| title_fullStr | Microstructure and Interfacial Reactions of Resistance Brazed Lap Joints between TC4 Titanium Alloy and 304 Stainless Steel Using Metal Powder Interlayers |
| title_full_unstemmed | Microstructure and Interfacial Reactions of Resistance Brazed Lap Joints between TC4 Titanium Alloy and 304 Stainless Steel Using Metal Powder Interlayers |
| title_short | Microstructure and Interfacial Reactions of Resistance Brazed Lap Joints between TC4 Titanium Alloy and 304 Stainless Steel Using Metal Powder Interlayers |
| title_sort | microstructure and interfacial reactions of resistance brazed lap joints between tc4 titanium alloy and 304 stainless steel using metal powder interlayers |
| topic | resistance brazing Ti-Fe intermetallic compounds (IMCs) metal powder layer multi-reaction zone structure metallurgical mechanism |
| url | https://www.mdpi.com/1996-1944/14/1/180 |
| work_keys_str_mv | AT pengxianzhang microstructureandinterfacialreactionsofresistancebrazedlapjointsbetweentc4titaniumalloyand304stainlesssteelusingmetalpowderinterlayers AT zhizhongfang microstructureandinterfacialreactionsofresistancebrazedlapjointsbetweentc4titaniumalloyand304stainlesssteelusingmetalpowderinterlayers AT shilongli microstructureandinterfacialreactionsofresistancebrazedlapjointsbetweentc4titaniumalloyand304stainlesssteelusingmetalpowderinterlayers |