Physical Properties and Microstructure of a Fe-Ni-Co Alloy Prepared by Sintering Metal Powders Under Nitrogen Gas Atmosphere
Sirisak Seansukato and Torranin Chairuangsri** Author for corresponding; e-mail address: torra@chmai.loxinfo.co.th
Volume: Vol.31 No.1 (JANUARY 2004)
Research Article
DOI:
Received: 16 July 2003, Revised: -, Accepted: 30 September 2003, Published: -
Citation: Seansukato S. and Chairuangsri T., Physical Properties and Microstructure of a Fe-Ni-Co Alloy Prepared by Sintering Metal Powders Under Nitrogen Gas Atmosphere, Chiang Mai Journal of Science, 2004; 31(1): 17-25.
Abstract
A route for preparing the Fe-Ni-Co alloy was studied. The mixed powders was compressed and sintered under nitrogen gas atmosphere. The mixing composition of metal powders was 54 wt%Fe, 29 wt%Ni and 17 wt%Co. A single-action compression was applied together with a double press-double sinter (P2S2) process. Cooling of specimens was performed by quenching in ice water. Apparent density of 92% of the full density could be obtained. The microhardness of prepared alloy was in the range of 110-144 HV. Detail of microstructure compared with the commercial alloy were given.
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