| 30CrMnSi/Cu/V/TC4电子束焊接试验研究 |
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| 引用本文： | 魏连峰,李宁,王廷.30CrMnSi/Cu/V/TC4电子束焊接试验研究[J].电焊机,2021,51(4):67-71. |
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| 作者姓名： | 魏连峰 李宁 王廷 |
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| 作者单位： | 中国核动力研究设计院 反应堆燃料与材料科技重点实验室,四川 成都 610041;哈尔滨工业大学(威海)山东省特种焊接技术重点实验室,山东 威海 264209 |
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| 摘 要： | 使用Cu/V中间层实现了30CrMnSi合金钢与TC4钛合金的电子束焊接,探究了接头组织和性能特征。结果表明,通过添加Cu/V过渡层金属可以避免Ti-Fe元素的直接混合反应生成脆硬的金属间化合物。焊缝不同区域分布着不同组分及性能的特征相,靠近钢侧焊缝为偏聚形成的富Fe相与富Cu相,靠近钛侧焊缝在形成Ti-V固溶体的同时也形成了少量Ti-Cu金属间化合物。接头的抗拉强度最高为418 MPa,接头失效于焊缝与30CrMnSi母材界面处的熔合线位置。
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| 关 键 词： | TC4钛合金 30CrMnSi合金钢 电子束焊接 微观组织 |
Experimetal research of electron beam welded 30CrMnSi/Cu/V/TC4 joint |
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| WEI Lianfeng,LI Ning,WANG Ting.Experimetal research of electron beam welded 30CrMnSi/Cu/V/TC4 joint[J].Electric Welding Machine,2021,51(4):67-71. |
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| Authors: | WEI Lianfeng LI Ning WANG Ting |
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| Affiliation: | (Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu 610041,China;Shandong Provincial Key Laboratory of Special Welding Technology,Harbin Institute of Technology at Weihai,Weihai 264209,China) |
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| Abstract: | Electron beam welding of 30CrMnSi alloy steel and TC4 titanium alloy was realized by Cu/V interlayer.Microstructure and mechanical properties of the joint were investigated.The results show that by adding Cu/V transition layer metal,the direct mixing of Ti-Fe elements and the brittle intermetallic compounds can be avoided.Characteristic phases of different components and properties are distributed in different areas of the weld.The weld near the steel side is a mixture of Fe-rich phase and Cu-rich phase.The weld near the titanium side forms Ti-V solid solution and also forms a small amount of Ti-Cu intermetallic compounds.The maximum tensile strength of the joint is 418 MPa,and the joint fails at the interface between the weld and 30CrMnSi base metal. |
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| Keywords: | TC4 titanium alloy 30CrMnSi alloy electron beam welding microstructure |
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