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Effect of Sintering Temperature on Physical Properties & hardness of CoCrMo alloys fabricated by metal injection moulding process

Ahmad Ridwan, Abdullah and Nur Aidah Nabihah, Dandang and Nur Zalikha, Khalil and W. S., Wan Harun (2017) Effect of Sintering Temperature on Physical Properties & hardness of CoCrMo alloys fabricated by metal injection moulding process. In: IOP Conference Series: Materials Science and Engineering, 4th International Conference on Mechanical Engineering Research (ICMER2017), 1-2 August 2017 , Kuantan, Pahang, Malaysia. pp. 1-8., 257 (012010). ISSN 1757-899X

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Abstract

Metal Injection Moulding (MIM) process is one of the Powder Metallurgy manufacturing techniques utilised to produce Cobalt Chromium Molybdenum (CoCrMo) compacts. The objective of this study is to determine physical properties and hardness of CoCrMo alloy compact sintered at three different sintering temperature at the similar soaking time. At the beginning, sample were fabricated by using Injection Moulding machine. Cobalt Chrome Molybdenum (CoCrMo) metal powder was selected for this study. A morphological study was conducted using optical microscope (OM) and micro-Vickers hardness testing. From the result obtained, it shows upward trend either on the hardness or physical properties of the samples. CoCrMo sintered compact become harder and volume of pores on surface become less due to the increase on sintering temperature. However, effect of increasing sintering temperature shows significant shrinkage of the sample, beginning losses in dimensional accuracy. It is discovered that a little change in sintering temperature gives significant impact on the microstructure, physical, mechanical of the alloy.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: metal injection moulding process; Cobalt Chromium Molybdenum (CoCrMo)
Subjects: Q Science > Q Science (General)
Faculty/Division: Faculty of Mechanical Engineering
Institute of Postgraduate Studies
Depositing User: Dr. Wan Sharuzi Wan Harun
Date Deposited: 26 Dec 2017 07:26
Last Modified: 29 Aug 2018 02:44
URI: http://umpir.ump.edu.my/id/eprint/19636
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