Single Step of Binder Thermal Debinding and Sintering of Injection Moulded 316L Stainless Steel

Abstract:

Metal injection moulding was performed with gas atomized 316L stainless steel powders. Feedstocks were prepared using a paraffin wax/polyethylene/stearic acid binder system and subsequently molded into tensile bar specimens. Solvent extraction done at 80○C has shortened the debinding process to 30 minute. Single step of thermal binder debinding and sintering was done in a vacuum furnace. Sintering at 1380○C has reduced the porosity and associated with grain growth that result in an increase in ultimate tensile strength to 444 MPa while the elongation increased to 29% before fracture.

• Periodical: Advanced Materials Research (Volumes 154-155)
• Pages: 1518-1521
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.154-155.1518
• Online since: October 2010
• Authors: Indra Putra Almanar, Zuhailawati Hussain, Mohd Afian Omar
• Keywords: Metal Injection Molding (MIM), Sintering, Stainless Steel (SS)

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