Influence of sintering temperature on microstructure and mechanical properties of Fe-2Ni-2Cu alloy processed by metal injection moulding

Title
Influence of sintering temperature on microstructure and mechanical properties of Fe-2Ni-2Cu alloy processed by metal injection moulding
Author(s)
고영건후세인시아리프박주현최대엽
Keywords
316L STAINLESS-STEEL; SURFACE-DIFFUSION; POWDER MIXTURES; WEAR BEHAVIOR; CARBONYL IRON; POROSITY; GROWTH
Issue Date
201405
Publisher
MANEY PUBLISHING
Citation
MATERIALS RESEARCH INNOVATIONS, v.18, pp.633 - 637
Abstract
The influence of the sintering temperature on microstructure and mechanical properties of Fe-2Ni-2Cu alloy processed by metal injection moulding was investigated. For this purpose, sintering treatments were performed at various temperatures ranging from 1100 to 1300 degrees C for 1 h. The micropores of the sintered samples transformed into rounded shapes, and they appeared to be isolated with increasing sintering temperature. The average grain size of the sintered sample seemed to increase slightly as the sintering temperature increased from 1100 to 1200 degrees C, and such a trend altered significantly when the sintering temperature increased from 1200 to 1300 degrees C, whereas the volume fraction of the micropores in the sintered structure decreased with increasing sintering temperature. These results were mainly attributed to the increasing mobility of the grain boundary associated with the sintering temperature. The microhardness value of the sample sintered at 1200 degrees C was higher than those at 1100 and 1300 degrees C, which was due to the fact that two competing microstructural influences associated with the grain size and micropore were balanced at 1200 degrees C.
URI
http://hdl.handle.net/YU.REPOSITORY/32308http://dx.doi.org/10.1179/1432891714Z.000000000542
ISSN
1432-8917
Appears in Collections:
공과대학 > 신소재공학부 > Articles
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