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Characterization of Injection Molded 17-4PH Stainless Steel prepared with Waste Rubber Binder

ABD RAZAK , JEEFFERIE and S., Nurhashima and YAAKOB, MOHD YUHAZRI and Sihombing, Haeryip and S., Mohd Shukor and Abdullah, N.S and Omar, M.A (2011) Characterization of Injection Molded 17-4PH Stainless Steel prepared with Waste Rubber Binder. JOURNAL OF MECHANICAL ENGINEERING AND TECHNOLOGY (JMET), 3 (1). pp. 11-21. ISSN 2180-1053

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Abstract

This study is to investigate the sintering characteristics and to establish the best heating rate and soaking time used for sintering process, by determining the physical, mechanical, and microstructural properties of the injection molded 17-4PH stainless steel using waste rubber as a new developed binder system. By using the feedstock which having 65 vol.% of metal powder, the molding are injected into the tensile test bar and immediately processed with two stage debinding process that involves of solvent extraction and thermal pyrolisis to remove the binder. The specimens were sintered at 1360°C under vacuum atmosphere and tested for a critical property analysis of tensile test. Later, the observation on tensile tested specimens fracture surface are done to understand the fracture behavior, distribution of grain and porosity and the significant correlation of fracture morphology to the mechanical properties. From this study, it is found that the combination of 50C/min heating rate and 60 minutes of soaking period resulted in higher density value, higher tensile strength, less porosity and homogenous grains distribution of the sintered specimens.

Item Type: Article
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
Divisions: Faculty of Manufacturing Engineering > Department of Engineering Materials
Depositing User: En. Jeefferie Abd Razak
Date Deposited: 02 Dec 2014 16:15
Last Modified: 28 May 2015 04:33
URI: http://eprints.utem.edu.my/id/eprint/13648

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