Microstructural comparison and mechanical properties of stainless steel 316L fabricated by selective laser melting and metal injection moulding processes

被引：0

作者：

Hamidi M.F.F.A. ^{[1
]}

Harun W.S.W. ^{[2
]}

Khalil N.Z. ^{[2
]}

Samykano M. ^{[3
]}

机构：

[1] Institute of Postgraduate Studies, Faculty of Mechanical Engineering, Universiti Malaysia Pahang, Pekan, Pahang

[2] Human Engineering Group, Faculty of Mechanical Engineering, Universiti Malaysia Pahang, Pekan, Pahang

[3] Structural Materials and Degradation Group, Faculty of Mechanical Engineering, Universiti Malaysia Pahang, Pekan, Pahang

来源：

International Journal of Manufacturing Technology and Management | 2019年 / 33卷 / 1-2期

关键词：

Mechanical properties; Metal injection moulding; Microstructure; MIM; Selective laser melting; SLM;

D O I：

10.1504/IJMTM.2019.100160

中图分类号：

学科分类号：

摘要：

Selective laser melting (SLM) process is one of an additive manufacturing technology that has the capabilities of fabricating complex geometries with an excellent accuracy and resolution. Compared to conventional powder metallurgy techniques metal injection moulding (MIM), SLM has several advantages such as low production cost for small batch fabrication, high degrees of geometrical freedom and customisation, and short cycle time. The present work analyses and compares the tensile properties and metallography differences of the stainless steel 316L compacts fabricated by two powder-based manufacturing processes; SLM and MIM, respectively. The SLM compact was built at 0-degree building orientation by SLM 125 HL machine with default optimum processing parameters for stainless steel 316L powder. On the other hand, MIM process produced similar dimension of tensile-shaped compacts differently that by sintered at three different sintering conditions in highly pure argon flow atmosphere. The tensile testing revealed that SLM tensile compact was higher in tensile strength (29% more) and elongation (62% more) at fracture as compared to MIM compact. From microstructure observation, the MIM compact showed the presence of significant amount of porosity which led to moderate mechanical properties compared to SLM compact performances. Copyright © 2019 Inderscience Enterprises Ltd.

引用

页码：76 / 87

页数：11

共 17 条

[1]

AlMangour B., Grzesiak D., Jenn M., Selective laser melting of TiC reinforced 316L stainless steel matrix nanocomposites: Influence of starting TiC particle size and volume content, Materials & Design, 104, pp. 141-151, (2016)

[2]

Alvarez K., Sato K., Hyun S.K., Nakajima H., Fabrication and properties of lotus-type porous nickel-free stainless steel for biomedical applications, Materials Science and Engineering: C, 28, 1, pp. 44-50, (2008)

[3]

Capek J., MacHova M., Fousova M., Kubasek J., Vojtech D., Fojt J., Ruml T., Highly porous, low elastic modulus 316L stainless steel scaffold prepared by selective laser melting, Materials Science and Engineering: C, 69, pp. 631-639, (2016)

[4]

Casati R., Lemke J., Vedani M., Microstructure and fracture behavior of 316L austenitic stainless steel produced by selective laser melting, Journal of Materials Science & Technology, 32, 8, pp. 738-744, (2016)

[5]

Choi J.-P., Lee G.-Y., Song J.-I., Lee W.-S., Lee J.-S., Sintering behavior of 316L stainless steel micro-nanopowder compact fabricated by powder injection molding, Powder Technology, 279, pp. 196-202, (2015)

[6]

Dewidar M., Influence of processing parameters and sintering atmosphere on the mechanical properties and microstructure of porous 316L stainless steel for possible hard-tissue applications, Int. J. Mech. Mech. Eng., 12, pp. 10-24, (2012)

[7]

Hamidi M.F.F.A., Harun W.S.W., Samykano M., Ghani S.A.C., Ghazalli Z., Ahmad F., Sulong A.B., A review of biocompatible metal injection moulding process parameters for biomedical applications, Materials Science and Engineering: C, 78, pp. 1263-1276, (2017)

[8]

Herzog D., Seyda V., Wycisk E., Emmelmann C., Additive manufacturing of metals, Acta Materialia, 117, pp. 371-392, (2016)

[9]

Ji C.H., Loh N.H., Khor K.A., Tor S.B., Sintering study of 316L stainless steel metal injection molding parts using Taguchi method: Final density, Materials Science and Engineering: A, 311, 1-2, pp. 74-82, (2001)

[10]

Liu Z.H., Zhang D.Q., Sing S.L., Chua C.K., Loh L.E., Interfacial characterization of SLM parts in multi-material processing: Metallurgical diffusion between 316L stainless steel and C18400 copper alloy, Materials Characterization, 94, pp. 116-125, (2014)

← 1 2 →