Effect of heat treatment on mechanical properties and microstructure of selective laser melting 316L stainless steel

Selective Laser Melting (SLM) has been one of the preferred Additive Manufacturing process to fabricate parts due to its merits in terms of design freedom, lower material waste and faster production when compare to the conventional manufacturing processes. However, due to the thermal gradient experi...

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Main Authors: Kamariah, M.S.I.N., Harun, W.S.W., Khalil, N.Z., Ahmad, F., Ismail, M.H., Sharif, S.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.19912 /
Published: Institute of Physics Publishing 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85035048543&doi=10.1088%2f1757-899X%2f257%2f1%2f012021&partnerID=40&md5=b7dcef0e738977f14a00aedcec2b2e33
http://eprints.utp.edu.my/19912/
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spelling utp-eprints.199122018-04-22T13:16:45Z Effect of heat treatment on mechanical properties and microstructure of selective laser melting 316L stainless steel Kamariah, M.S.I.N. Harun, W.S.W. Khalil, N.Z. Ahmad, F. Ismail, M.H. Sharif, S. Selective Laser Melting (SLM) has been one of the preferred Additive Manufacturing process to fabricate parts due to its merits in terms of design freedom, lower material waste and faster production when compare to the conventional manufacturing processes. However, due to the thermal gradient experienced during the process, the parts are exposed to the residual stress that leads to parts distortion. This work presents the effect of heat treatments on the micro-hardness of 316L stainless steel parts. In current study, SLM has been employed to fabricate 316L stainless steel compacts. Different heat treatments of 650°C, 950°C, and 1100°C for 2 hours were applied on the compacts. Hardness test were performed on the as-built and heat-treated compacts. The relationship between the microstructures and micro-hardness were discussed in this paper. The results revealed that the micro-hardness of the as-built compacts is between 209.0 and 212.2 HV, which is much higher than the heattreated compacts. © 2017 Published under licence by IOP Publishing Ltd. Institute of Physics Publishing 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85035048543&doi=10.1088%2f1757-899X%2f257%2f1%2f012021&partnerID=40&md5=b7dcef0e738977f14a00aedcec2b2e33 Kamariah, M.S.I.N. and Harun, W.S.W. and Khalil, N.Z. and Ahmad, F. and Ismail, M.H. and Sharif, S. (2017) Effect of heat treatment on mechanical properties and microstructure of selective laser melting 316L stainless steel. IOP Conference Series: Materials Science and Engineering, 257 (1). http://eprints.utp.edu.my/19912/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Selective Laser Melting (SLM) has been one of the preferred Additive Manufacturing process to fabricate parts due to its merits in terms of design freedom, lower material waste and faster production when compare to the conventional manufacturing processes. However, due to the thermal gradient experienced during the process, the parts are exposed to the residual stress that leads to parts distortion. This work presents the effect of heat treatments on the micro-hardness of 316L stainless steel parts. In current study, SLM has been employed to fabricate 316L stainless steel compacts. Different heat treatments of 650°C, 950°C, and 1100°C for 2 hours were applied on the compacts. Hardness test were performed on the as-built and heat-treated compacts. The relationship between the microstructures and micro-hardness were discussed in this paper. The results revealed that the micro-hardness of the as-built compacts is between 209.0 and 212.2 HV, which is much higher than the heattreated compacts. © 2017 Published under licence by IOP Publishing Ltd.
format Article
author Kamariah, M.S.I.N.
Harun, W.S.W.
Khalil, N.Z.
Ahmad, F.
Ismail, M.H.
Sharif, S.
spellingShingle Kamariah, M.S.I.N.
Harun, W.S.W.
Khalil, N.Z.
Ahmad, F.
Ismail, M.H.
Sharif, S.
Effect of heat treatment on mechanical properties and microstructure of selective laser melting 316L stainless steel
author_sort Kamariah, M.S.I.N.
title Effect of heat treatment on mechanical properties and microstructure of selective laser melting 316L stainless steel
title_short Effect of heat treatment on mechanical properties and microstructure of selective laser melting 316L stainless steel
title_full Effect of heat treatment on mechanical properties and microstructure of selective laser melting 316L stainless steel
title_fullStr Effect of heat treatment on mechanical properties and microstructure of selective laser melting 316L stainless steel
title_full_unstemmed Effect of heat treatment on mechanical properties and microstructure of selective laser melting 316L stainless steel
title_sort effect of heat treatment on mechanical properties and microstructure of selective laser melting 316l stainless steel
publisher Institute of Physics Publishing
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85035048543&doi=10.1088%2f1757-899X%2f257%2f1%2f012021&partnerID=40&md5=b7dcef0e738977f14a00aedcec2b2e33
http://eprints.utp.edu.my/19912/
_version_ 1741196284446900224
score 11.62408

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