Physical Properties and Microstructure Study of Stainless Steel 316L Alloy Fabricated by Selective Laser Melting

Nurul Kamariah, Md Saiful Islam and Wan Sharuzi, Wan Harun and S. A., Che Ghani and Mohd Asnawi, Omar and Mohd Hazlen, Ramli and Muhammad Hussain, Ismail (2017) Physical Properties and Microstructure Study of Stainless Steel 316L Alloy Fabricated by Selective Laser Melting. In: AIP Conference Proceedings: Proceedings of the 3rd Advanced Materials Conference 2016 (3rd AMC 2016) , 28-29 November 2016 , Langkawi, Malaysia. pp. 1-6., 1901 (100015). ISBN 978-0-7354-1589

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Abstract

Selective Laser Melting (SLM) demonstrates the 21st century’s manufacturing infrastructure in which powdered raw material is melted by a high energy focused laser, and built up layer-by-layer until it forms three-dimensional metal parts. SLM process involves a variation of process parameters which affects the final material properties. 316L stainless steel compacts through the manipulation of building orientation and powder layer thickness parameters were manufactured by SLM. The effect of the manipulated parameters on the relative density and dimensional accuracy of the 316L stainless steel compacts, which were in the as-build condition, were experimented and analysed. The relationship between the microstructures and the physical properties of fabricated 316L stainless steel compacts was investigated in this study. The results revealed that 90° building orientation has higher relative density and dimensional accuracy than 0° building orientation. Building orientation was found to give more significant effect in terms of dimensional accuracy, and relative density of SLM compacts compare to build layer thickness. Nevertheless, the existence of large number and sizes of pores greatly influences the low performances of the density.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: Selective Laser Melting; Stainless Steel 316L;
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Dr. Wan Sharuzi Wan Harun
Date Deposited: 12 Dec 2017 06:24
Last Modified: 18 May 2018 06:44
URI: http://umpir.ump.edu.my/id/eprint/19497
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