Journal
MATERIALS & DESIGN
Volume 180, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2019.107909
Keywords
Additive manufacturing; Titanium; Selective laser melting; Zirconia; Ti6Al4V; Mechanical properties
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Funding
- Association Nationale de la Recherche et de la Technologie (ANRT) [2017/0630]
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This study presents the results of selective laser melting (SLM) of Ti6Al4V reinforced with 1% and 2.5% (wt%) nano yttria-stabilized zirconia (nYSZ). The bulk parts showed a very high building density which means that the melting parameters were optimal. X-ray diffraction analysis confirmed the existence of a near-alpha microstructure. No change in grains shape was noticed after the addition of nYSZ, columnar and lamellar grains remained present The microhardness of Ti6Al4V was greatly enhanced from 340 HV to 511 HV after the addition of nYSZ which is the highest recorded value so far.The maximum values of yield stress and compressive strengths were 1302 MPa and 1751 MPa, respectively, compared to 840 MPa and 1250 MPa, respectively, for the SLMed Ti6Al4V. (C) 2019 The Author(s). Published by Elsevier Ltd.
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