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Surface structure of CoCrMo and Ti6Al4V parts obtained by selective laser sintering

V. DESPA1,* , A. CATANGIU1, D. N. UNGUREANU1, I. A. IVAN1

Affiliation

  1. Valahia University of Targoviste, 2 Regele Carol I Street, Targoviste, Romania

Abstract

Based on a three-dimensional computer-aided design model, selective laser sintering technology has been used to manufacture parts from CoCrMo and Ti6Al4V. Knowing the biocompatible characteristics of both materials, the parts surfaces have been analyzed by SEM and surface profilometry, in order to further investigate their potential for bioactive coating substrates. Due to the specific conditions of laser sintering (surface anisotropy along the z axis) both lateral and top surfaces were analyzed. Top surface roughness (Ra top=0.244 μm; Ra – the average absolute deviation from the mean line over sampling length) of CoCrMo sample is significant lower than lateral surface roughness one (Ra lateral=2.553 μm). In case of Ti6Al4V sample, lateral and top surfaces structures are similar, and the roughness of these surfaces are significantly close (Ra lateral=0.751 μm; Ra top =1.073 μm)..

Keywords

Rapid prototyping, Selective laser sintering, CoCrMo alloy, Ti6Al4V alloy, Surface topography.

Submitted at: March 25, 2013
Accepted at: July 11, 2013

Citation

V. DESPA, A. CATANGIU, D. N. UNGUREANU, I. A. IVAN, Surface structure of CoCrMo and Ti6Al4V parts obtained by selective laser sintering, Journal of Optoelectronics and Advanced Materials Vol. 15, Iss. 7-8, pp. 858-862 (2013)