Deposition of Ti-6Al-4V using laser and wire, part I: Microstructural properties of single beads

被引：135

作者：

Brandl, Erhard ^{[1
]}

Michailov, Vesselin ^{[2
]}

Viehweger, Bernd ^{[3
]}

Leyens, Christoph ^{[4
]}

机构：

[1] EADS Innovat Works, Metall Technol & Surface Engn, D-81663 Munich, Germany

[2] Brandenburg Tech Univ Cottbus, Chair Joining & Welding Technol, D-03046 Cottbus, Germany

[3] Brandenburg Tech Univ Cottbus, Chair Design & Mfg, D-03046 Cottbus, Germany

[4] Tech Univ Dresden, Inst Mat Sci, Chair Mat Technol, D-01062 Dresden, Germany

来源：

SURFACE & COATINGS TECHNOLOGY | 2011年 / 206卷 / 06期

关键词：

Titanium; Ti-6Al-4v; Microstructure; Additive manufacturing; Laser; Deposition; DIODE-LASER; EVOLUTION;

D O I：

10.1016/j.surfcoat.2011.07.095

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this paper, the microstructural characteristics of Ti-6Al-4V single beads and their dependence on process parameters are addressed. Single beads represent the smallest - and therefore fundamental - unit of additive manufactured components. Bead-on-plates and single beads are produced using a 3.5 kW Nd:YAG laser and Ti-6Al-4V wire. Within 71 sets of process parameters laser beam power, welding speed, and wire-feed speed are varied. The microstructures are investigated by light and scanning electron microscopy, and are divided into several zones according to the thermal history underwent. Microstructural differences of the beads are correlated to the process parameters and discussed. The experiments reveal fundamental microstructural and process characteristics which are helpful for the repeatable and predictable manufacturing and understanding of multi-layered components. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1120 / 1129

页数：10