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Densification behavior and grain growth of tool steel powder under high temperature SCIE SCOPUS

Title
Densification behavior and grain growth of tool steel powder under high temperature
Authors
Kim, KTJeon, YC
Date Issued
1998-10-09
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
Densification behavior and grain growth of tool steel powder compacts are investigated under pressureless sintering, sinter forging and hot isostatic pressing. Experimental data are compared with finite element calculations by using the constitutive models of Abouaf and co-workers and of McMeeking and co-workers. Grain growth of tool steel powder compacts during densification is also investigated by using the grain growth equation proposed by Abouaf and co-workers. In sinter forging, finite element calculations by both models somewhat overestimate experimental data. In hot isostatic pressing, finite element calculations for densification and deformation of the powder compact agree reasonably well with experimental data. The shielding effect of the container during hot isostatic pressing is also studied. (C) 1998 Acta Metallurgica Inc. Published by Elsevier Science Ltd. All rights reserved.
Keywords
POWER-LAW CREEP; ISOLATED CONTACTS; COPPER-POWDER; METAL-POWDER; DEFORMATION; ALUMINA
URI
https://oasis.postech.ac.kr/handle/2014.oak/20600
DOI
10.1016/S1359-6454(98)00261-4
ISSN
1359-6454
Article Type
Article
Citation
ACTA MATERIALIA, vol. 46, no. 16, page. 5745 - 5754, 1998-10-09
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김기태KIM, KI TAE
Dept of Mechanical Enginrg
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