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Influence of microstructure on mechanical properties of laser metal wire-deposited Ti-6Al-4V

机译：微观结构对激光金属丝沉积Ti-6Al-4V力学性能的影响

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摘要

In the present paper laser metal wire deposition of Ti-6Al-4V has been studied and the mechanical properties evaluated. The yield strength, ultimate tensile strength and tensile elongation were all found to depend on the orientation of the specimens with respect to the deposition direction. Two orientations in the deposited material were evaluated in the study, perpendicular and parallel to the deposition direction. The specimens in the perpendicular orientation showed 25-33% higher elongation than the specimens parallel to the deposition direction. The parallel specimens on the other hand showed both higher (4%) ultimate tensile strength and higher (2-5%) yield strength. Furthermore, the anisotropic mechanical properties were correlated to the microstructural constituents of the specimens.
机译：在本文中，已经研究了Ti-6Al-4V的激光金属线沉积并评估了机械性能。发现屈服强度，极限抗拉强度和拉伸伸长率均取决于样品相对于沉积方向的取向。在研究中评估了沉积材料中的两个方向，垂直于和平行于沉积方向。垂直取向的样品比平行于沉积方向的样品显示出高25-33％的伸长率。另一方面，平行样品显示出更高的极限拉伸强度（4％）和更高的屈服强度（2-5％）。此外，各向异性的力学性能与试样的微观结构成分有关。

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