Morphology, microstructure, and hardness of titanium (Ti-6Al-4V) blocks deposited by wire-feed additive layer manufacturing (ALM)

被引：248
|
作者：
Brandl, Erhard [1 ]
Schoberth, Achim [1 ]
Leyens, Christoph [2 ]
机构：
[1] EADS Innovat Works Metall Technol & Surface Engn, D-81663 Munich, Germany
[2] Tech Univ Dresden, Inst Mat Sci, Chair Mat Technol, D-01062 Dresden, Germany
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 532卷
关键词：
Light microscopy; Microstructure; Chemical composition; Hardness measurement; Titanium alloys; Additive layer manufacturing; POWER DIODE-LASER; MECHANICAL-PROPERTIES; PART I; METAL-DEPOSITION; BETA-PHASE; ALLOY; EVOLUTION; POWDER; BEHAVIOR; ORIGIN;
D O I：
10.1016/j.msea.2011.10.095
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Additive layer manufacturing offers a potential for time and cost savings, especially for aerospace components made from costly titanium alloys. In this paper, the morphology, microstructure, chemical composition, and hardness of additive manufactured Ti-6Al-4V blocks are investigated and discussed. Blocks (7 beads wide, 7 layers high) were deposited using Ti-6Al-4V wire and a Nd:YAG laser. Two different sets of parameters are used and three different post heat treatment conditions (as-built, 600 degrees C/4 h, 1200 degrees C/2 h) are investigated. The experiments reveal elementary properties of additive manufactured Ti-6Al-4V material in correlation to process parameters and heat treatments, which are discussed comprehensively. (C) 2011 Elsevier B.V. All rights reserved.
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页码：295 / 307
页数：13
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