Abstract
Abstract Over the years, Metal Injection Moulding (MIM) has thrived into an advanced near net shape forming of metallic components having intricate shapes and excellent properties. In the recent research work, the feedstock was prepared at a powder loading of 63 vol% using 316L stainless steel powder with particle size of 14.2 µm and environmental friendly binder system comprising of thermoplastic rice starch, palm stearin, polyethylene and stearic acid. The feedstock which possessed a pseudoplastic behaviour was injection-moulded into a tensile test part at a pressure of 400 bars and temperature of 170 °C. Following the injection moulding stage, the green part was debound using water at a temperature of 50 °C for 4 h. The part was then sintered in vacuum atmosphere at a temperature of 1380 °C. Approximately, 7.8 g/cm3 theoretical density, hardness of 216.18 HV and tensile strength of 81.68 MPa were achieved. The findings suggested that the physical and mechanical properties of sintered 316L stainless steel are in satisfactory agreement with the international benchmark.
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