Ti43.76Zr12.50Cu37.49-xNi6.25Cox非晶钎料真空钎焊TC4钛合金/316L不锈钢
TG454; 根据双团簇模型设计并制备了Ti-Zr-Cu-Ni-Co系非晶钎料,用于真空钎焊TC4钛合金和 316L不锈钢,分析了钎料中Co元素含量对钎焊接头界面微观组织形貌、力学性能及断裂行为的影响规律.结果表明,钎焊接头可划分为TC4/扩散区(Ⅰ区)/钎缝中心区(Ⅱ区)/界面区(Ⅲ区)/316L,界面典型微观组织结构为TC4/β-Ti + Ti2Cu/(Ti,Zr)2(Cu,Ni)+ Ti2Cu + Ti2(Cu,Ni)+ TiFe/(Fe,Cr)2Ti + α-(Fe,Cr)+ τ + γ-(Fe,Ni)+ σ/316L,随着Co元素含量的增加,接头剪切强度先升高后降低再升高,当Co元素...
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| Published in | 焊接学报 Vol. 45; no. 1; pp. 47 - 57 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
大连理工大学,大连, 116024
2024
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-360X |
| DOI | 10.12073/j.hjxb.20221123001 |
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| Abstract | TG454; 根据双团簇模型设计并制备了Ti-Zr-Cu-Ni-Co系非晶钎料,用于真空钎焊TC4钛合金和 316L不锈钢,分析了钎料中Co元素含量对钎焊接头界面微观组织形貌、力学性能及断裂行为的影响规律.结果表明,钎焊接头可划分为TC4/扩散区(Ⅰ区)/钎缝中心区(Ⅱ区)/界面区(Ⅲ区)/316L,界面典型微观组织结构为TC4/β-Ti + Ti2Cu/(Ti,Zr)2(Cu,Ni)+ Ti2Cu + Ti2(Cu,Ni)+ TiFe/(Fe,Cr)2Ti + α-(Fe,Cr)+ τ + γ-(Fe,Ni)+ σ/316L,随着Co元素含量的增加,接头剪切强度先升高后降低再升高,当Co元素含量为 1.56%时达到最大 310 MPa,不添加Co元素时,接头断裂于钎缝中心区(Ⅱ区);当Co元素含量为 1.56%～6.24%时,接头断裂于靠近 316L母材的界面区(Ⅲ区)附近,断裂模式为典型的解理断裂. |
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| AbstractList | TG454; 根据双团簇模型设计并制备了Ti-Zr-Cu-Ni-Co系非晶钎料,用于真空钎焊TC4钛合金和 316L不锈钢,分析了钎料中Co元素含量对钎焊接头界面微观组织形貌、力学性能及断裂行为的影响规律.结果表明,钎焊接头可划分为TC4/扩散区(Ⅰ区)/钎缝中心区(Ⅱ区)/界面区(Ⅲ区)/316L,界面典型微观组织结构为TC4/β-Ti + Ti2Cu/(Ti,Zr)2(Cu,Ni)+ Ti2Cu + Ti2(Cu,Ni)+ TiFe/(Fe,Cr)2Ti + α-(Fe,Cr)+ τ + γ-(Fe,Ni)+ σ/316L,随着Co元素含量的增加,接头剪切强度先升高后降低再升高,当Co元素含量为 1.56%时达到最大 310 MPa,不添加Co元素时,接头断裂于钎缝中心区(Ⅱ区);当Co元素含量为 1.56%～6.24%时,接头断裂于靠近 316L母材的界面区(Ⅲ区)附近,断裂模式为典型的解理断裂. |
| Abstract_FL | Ti-Zr-Cu-Ni-Co amorphous filler metals were de-signed and prepared for vacuum brazing of TC4 titanium alloy to 316L stainless steel according to the dual-cluster model.The effect of Co content in filler metals on the microstructure,mechanical properties and fracture behavior of brazed joints was investigated.The results showed that the cross section of brazed joint could be divided into TC4/diffusion zone Ⅰ/braz-ing seam center zone Ⅱ/interface zone Ⅲ/316L.The typical in-terfacial microstructure of the brazed joints was TC4/β-Ti + Ti2Cu/(Ti,Zr)2(Cu,Ni)+ Ti2Cu + Ti2(Cu,Ni)+ TiFe/(Fe,Cr)2Ti + α-(Fe,Cr)+ τ + γ-(Fe,Ni)+ σ/316L.The shear strength of brazed joints first increased,then decreased and then increased with the increase of Co content.The maximum shear strength of 310 MPa was obtained at 1.56%Co.When Co element was not added,brazed joints fractured in the center of the brazing seam(zone Ⅱ).And when the Co content was 1.56～6.24%,brazed joints fractured near the interface zone(zone Ⅲ)of 316L base metal.The fracture mode was typical cleavage fracture. |
| Author | 吴宝生 董红刚 马月婷 李鹏 韩文倩 张亮亮 |
| AuthorAffiliation | 大连理工大学,大连, 116024 |
| AuthorAffiliation_xml | – name: 大连理工大学,大连, 116024 |
| Author_FL | HAN Wenqian WU Baosheng DONG Honggang LI Peng ZHANG Liangliang MA Yueting |
| Author_FL_xml | – sequence: 1 fullname: HAN Wenqian – sequence: 2 fullname: DONG Honggang – sequence: 3 fullname: MA Yueting – sequence: 4 fullname: LI Peng – sequence: 5 fullname: WU Baosheng – sequence: 6 fullname: ZHANG Liangliang |
| Author_xml | – sequence: 1 fullname: 韩文倩 – sequence: 2 fullname: 董红刚 – sequence: 3 fullname: 马月婷 – sequence: 4 fullname: 李鹏 – sequence: 5 fullname: 吴宝生 – sequence: 6 fullname: 张亮亮 |
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| DocumentTitle_FL | Vacuum brazing TC4 titanium alloy/316L stainless steel with Ti43.76Zr12.50Cu37.49-xNi6.25Cox amorphous filler metals |
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| Keywords | 钛合金/不锈钢异种金属 shear strength 非晶钎料 真空钎焊 vacuum brazing microstructure 微观组织 ti-tanium alloy/stainless steel dissimilar metal amorphous filler metal 剪切强度 |
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| Snippet | TG454; 根据双团簇模型设计并制备了Ti-Zr-Cu-Ni-Co系非晶钎料,用于真空钎焊TC4钛合金和... |
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| Title | Ti43.76Zr12.50Cu37.49-xNi6.25Cox非晶钎料真空钎焊TC4钛合金/316L不锈钢 |
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