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Laser deposition additive manufacturing of 17-4PH stainless steel on Ti-6Al-4V using V interlayer
Materials Research Letters ( IF 8.6 ) Pub Date : 2019-03-31 , DOI: 10.1080/21663831.2019.1596989
Nana Kwabena Adomako 1 , Sanghoon Noh 2 , Chang-Seok Oh 3 , Sangsun Yang 4 , Jeoung Han Kim 1
Affiliation  

For the first time, additive manufacturing was used to obtain a strong joint (bonding strength >200 MPa) between stainless steel and Ti-6Al-4V using a V interlayer. The V interlayer applied via solid-state joining prevented the formation of brittle intermetallic phases more effectively than a V interlayer deposited by a liquid-state process. The microstructure and strength of the joint interface depended on the laser power and scan speed. The joint strength decreased with increasing annealing time, especially after 4 and 24 h, demonstrating the presence of the Fe-V-Cr σ-phase.



中文翻译:

使用V夹层在Ti-6Al-4V上激光沉积增材制造17-4PH不锈钢

首次使用增材制造法使用V夹层在不锈钢和Ti-6Al-4V之间获得牢固的结合(结合强度> 200 MPa)。通过固态连接施加的V中间层比通过液相工艺沉积的V中间层更有效地防止了脆性金属间相的形成。关节界面的微观结构和强度取决于激光功率和扫描速度。接头强度随着退火时间的增加而降低,特别是在4和24 h之后,这表明存在Fe-V-Crσ相。

更新日期:2019-03-31
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