Study of Direct Fabrication of a Ti-6Al-4V Impeller on a Wrought Ti-6Al-4V Plate by Electron Beam Melting
Study of Direct Fabrication of a Ti-6Al-4V Impeller on a Wrought Ti-6Al-4V Plate by Electron Beam Melting
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DOI：
10.1007/s11837-017-2610-5
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发表时间：
2017-12-01
期刊：
影响因子：
2.6
通讯作者：
Wei, Jun
中科院分区：
文献类型：
--
作者：
Wang, Pan;Nai, Mui Ling Sharon;Wei, Jun
本文首次报道了利用电子束熔炼技术(EBM)在锻造的Ti-6Al-4V板材上直接制造Ti-6Al-4V叶轮零件。对预制试件的缺陷分析、硬度测试、金相组织观察和拉伸试验结果表明，该复杂几何构件可以成功地制造出来，成品由锻造底板和EBM预制截面相结合。熔合区厚度约150微米，沿熔合区未见缺陷。拉伸结果也反映了锻造截面和EBM建造截面之间的良好融合。
The direct building of a Ti-6Al-4V impeller part onto a wrought Ti-6Al-4V plate using electron beam melting (EBM) has been reported for the first time in this study. From the results of the defect analysis, hardness measurement, microstructural observation, and tensile test of the as-built specimens, it is revealed that the complex geometrical component can be successfully fabricated, and the finished component has a combination of wrought base plate and EBM-built section. The fusion zone is about 150 mu m thick and no defect is observed along the fusion zone. Tensile results also reflect a good fusion between the wrought and EBM-built sections.