Measurement of fracture toughness of metallic materials produced by additive manufacturing

被引：5
作者：
Quénard O. [1 ]
Dorival O. [1 ,2 ]
Guy P. [1 ]
Votié A. [3 ]
Brethome K. [4 ]
机构：
[1] Icam, 75 av. de Grande Bretagne, Toulouse
[2] Université de Toulouse, Institut Clément Ader, UMR CNRS 5312, INSA/UPS/ISAE/Mines Albi, 3 rue Caroline Aigle, Toulouse
[3] FusiA, 8 rue Claude Gonin, Toulouse
[4] CNES, 18 av. Edouard Belin, Toulouse
来源：
CEAS Space Journal | 2018年 / 10卷 / 03期
关键词：
Additive layer manufacturing; Fracture toughness; Laser beam melting; Mechanical properties; Ti-6Al-4V;
D O I：
10.1007/s12567-018-0202-z
中图分类号：
学科分类号：
摘要：
This study focuses on the microstructure and mechanical properties of metallic materials produced by additive layer manufacturing (ALM), especially the laser beam melting process. The influence of the specimen orientation during the ALM process and that of two post-build thermal treatments were investigated. The identified metal powder is Ti-6Al-4V (titanium base). Metallographic analysis shows their effects on the microstructure of the metals. Mechanical experiments involving tensile tests as well as toughness tests were performed according to ASTM (American Society for Testing and Materials) norms. The results show that the main influence is that of the thermal treatments; however the manufacturing stacking direction may lead to some anisotropy in the mechanical properties. © 2018, CEAS.
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收藏
页码：343 / 353
页数：10
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