MATEC Web of Conferences
Volume 27, 20152015 4th International Conference on Engineering and Innovative Materials (ICEIM 2015)
|Number of page(s)||5|
|Section||Novel materials and properties|
|Published online||20 October 2015|
The Transverse Rupture Strength in Ti-6Al-4V Alloy Manufactured by Selective Laser Melting
Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 10608 Taiwan, ROC
a Corresponding author: email@example.com
The objective of this study was to investigate the transverse rupture strength and apparent hardness of selective laser melted Ti-6Al-4V alloys manufactured in the vertical (V) and horizontal (H) directions. The microstructure and the distribution of alloy elements were examined by optical microscope and electron probe microanalysis, respectively. The results show that the columnar α′ grains are formed along the building direction, and the elemental distributions of Ti, Al, and V are homogeneous in the alloy. The building direction does not sufficiently affect the density and apparent hardness. However, the transverse rupture strengths (TRS) are obviously dominated by the building directions investigated in this study. The TRS of an H specimen is significantly superior to that of a V specimen by 48%. This phenomenon can be mainly attributed to the presence of disc-shaped pores.
© Owned by the authors, published by EDP Sciences, 2015
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