Effect of build direction on the microhardness and dry sliding wear behaviour of laser additive manufactured Ti-6Al-4V

Conference proceedings article

Authors/Editors

Bhero, Shepherd

Research Areas

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Publication Details

Author list: Palanisamy C, Bhero S, Obadele BA, Olubambi PA

Publisher: Elsevier

Place: AMSTERDAM

Publication year: 2018

Journal: Materials Today: Proceedings (2214-7853)

Journal acronym: MATER TODAY-PROC

Volume number: 5

Issue number: 1

Start page: 397

End page: 402

Number of pages: 6

ISSN: 2214-7853

Languages: English-Great Britain (EN-GB)

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Abstract

This work presents micro structural and tribological behaviour of Ti-6Al-4V fabricated by direct metal laser sintering technique. The laser sintering was carried out at laser power of 170 W in an argon atmosphere. The microstructure, phase composition, micro hardness and wear study were determined. It has been found that specimens built vertically (VB) contained vanadium carbide (VC) and titanium oxide (TiO) phases in the present of a and ss phases resulting in higher micro hardness as compared to horizontal build (HB) specimens. Wear volume loss was determined in a dry sliding wear configuration. An increase in applied load from 5 N to 25 N resulted in an increment in wear volume loss. The presence of delamination could be observed on the worn surface of HB specimen. (c) 2017 Elsevier Ltd. All rights reserved.

Keywords

Laser, Sintering, Titanium, Wear

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