Brazing process and high-temperature performance of SUS410/Hastelloy X joint
The vacuum brazing of SUS410 stainless steel to Hastelloy X dissimilar materials was successfully executed utilizing BNi-2 adhesive tape as the brazing alloy. The microstructure of the brazed joint interface was analyzed using an energy dispersive spectrometer (SEM) and an energy dispersive spectrom...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Transactions of the China Welding Institution, Welding Journals Publishing House
2025-08-01
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| Series: | Hanjie xuebao |
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| Online Access: | https://doi.org/10.12073/j.hjxb.20250124002 |
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| author | Yuanbin LI Hao SUN Xingdong CHEN Wei FU Xiaoguo SONG |
| author_facet | Yuanbin LI Hao SUN Xingdong CHEN Wei FU Xiaoguo SONG |
| author_sort | Yuanbin LI |
| collection | DOAJ |
| description | The vacuum brazing of SUS410 stainless steel to Hastelloy X dissimilar materials was successfully executed utilizing BNi-2 adhesive tape as the brazing alloy. The microstructure of the brazed joint interface was analyzed using an energy dispersive spectrometer (SEM) and an energy dispersive spectrometer (EDS). The influence of brazing duration on the interfacial microstructure and mechanical properties was investigated. In order to evaluate the high-temperature service performance of the joint, the influence of high-temperature (620 ℃) aging on the interface microstructure and high-temperature mechanical properties of the joint was studied. The results show that the typical interface structure of the brazed joint is SUS410/α-Fe+(Fe, Cr)-B/Ni(s, s)+Cr-B/γ-phase+(Ni, Cr, Fe)-B+(Cr-B, Mo-B)/Hastelloy X. As brazing continues, the shear strength of the joint first increases and then decreases. When the brazing temperature is 1 100 ℃, and the holding time is 10 minutes, the joint achieves the maximum shear strength of 216.8 MPa. The fracture is a ductile one. After aging at 620 ℃, the area of the diffusion zone at the joint has significantly increased, and this increase continues to grow over time. After the aging, the distribution of borides at the grain boundaries within the diffusion zone of the joint becomes more uniform, and the aggregation degree at the grain boundaries decreases. As aging continues, the shear strength at high temperature (620 ℃) gradually converges to 138.2–145.9 MPa, reaching 63.7%–67.3% of the shear strength at room temperature. |
| format | Article |
| id | doaj-art-417bada723324f26bdde780feb184f02 |
| institution | Kabale University |
| issn | 0253-360X |
| language | zho |
| publishDate | 2025-08-01 |
| publisher | Editorial Office of Transactions of the China Welding Institution, Welding Journals Publishing House |
| record_format | Article |
| series | Hanjie xuebao |
| spelling | doaj-art-417bada723324f26bdde780feb184f022025-08-20T03:41:39ZzhoEditorial Office of Transactions of the China Welding Institution, Welding Journals Publishing HouseHanjie xuebao0253-360X2025-08-01468808810.12073/j.hjxb.20250124002hjxb-46-8-liyuanbinBrazing process and high-temperature performance of SUS410/Hastelloy X jointYuanbin LI0Hao SUN1Xingdong CHEN2Wei FU3Xiaoguo SONG4AECC Shenyang Liming Aero-engine Co. Ltd., Shenyang, 110043, ChinaShandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Weihai, Weihai, 264209, ChinaShandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Weihai, Weihai, 264209, ChinaDongfang Turbine Co. Ltd., Deyang, 618000, ChinaShandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Weihai, Weihai, 264209, ChinaThe vacuum brazing of SUS410 stainless steel to Hastelloy X dissimilar materials was successfully executed utilizing BNi-2 adhesive tape as the brazing alloy. The microstructure of the brazed joint interface was analyzed using an energy dispersive spectrometer (SEM) and an energy dispersive spectrometer (EDS). The influence of brazing duration on the interfacial microstructure and mechanical properties was investigated. In order to evaluate the high-temperature service performance of the joint, the influence of high-temperature (620 ℃) aging on the interface microstructure and high-temperature mechanical properties of the joint was studied. The results show that the typical interface structure of the brazed joint is SUS410/α-Fe+(Fe, Cr)-B/Ni(s, s)+Cr-B/γ-phase+(Ni, Cr, Fe)-B+(Cr-B, Mo-B)/Hastelloy X. As brazing continues, the shear strength of the joint first increases and then decreases. When the brazing temperature is 1 100 ℃, and the holding time is 10 minutes, the joint achieves the maximum shear strength of 216.8 MPa. The fracture is a ductile one. After aging at 620 ℃, the area of the diffusion zone at the joint has significantly increased, and this increase continues to grow over time. After the aging, the distribution of borides at the grain boundaries within the diffusion zone of the joint becomes more uniform, and the aggregation degree at the grain boundaries decreases. As aging continues, the shear strength at high temperature (620 ℃) gradually converges to 138.2–145.9 MPa, reaching 63.7%–67.3% of the shear strength at room temperature.https://doi.org/10.12073/j.hjxb.20250124002adhesive tape as brazing alloyhastelloy x alloybni-2 adhesive tapevacuum brazinghigh-temperature performance |
| spellingShingle | Yuanbin LI Hao SUN Xingdong CHEN Wei FU Xiaoguo SONG Brazing process and high-temperature performance of SUS410/Hastelloy X joint Hanjie xuebao adhesive tape as brazing alloy hastelloy x alloy bni-2 adhesive tape vacuum brazing high-temperature performance |
| title | Brazing process and high-temperature performance of SUS410/Hastelloy X joint |
| title_full | Brazing process and high-temperature performance of SUS410/Hastelloy X joint |
| title_fullStr | Brazing process and high-temperature performance of SUS410/Hastelloy X joint |
| title_full_unstemmed | Brazing process and high-temperature performance of SUS410/Hastelloy X joint |
| title_short | Brazing process and high-temperature performance of SUS410/Hastelloy X joint |
| title_sort | brazing process and high temperature performance of sus410 hastelloy x joint |
| topic | adhesive tape as brazing alloy hastelloy x alloy bni-2 adhesive tape vacuum brazing high-temperature performance |
| url | https://doi.org/10.12073/j.hjxb.20250124002 |
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