Chiang Mai Journal of Science

Print ISSN: 0125-2526 | eISSN : 2465-3845

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Analysis of Compaction and Sintering of Stainless Steel Powders

Ornmanee Coovattanachai*, Prayoon Lasutta, Nattaya Tosangthum, Rungtip Krataitong, Monnapas Morakot
* Author for corresponding; e-mail address: ornmanc@mtec.or.th
Volume: Vol.33 No.3 (SEPTEMBER 2006)
Research Article
DOI:
Received: 20 September 2005, Revised: -, Accepted: 14 Febuary 2006, Published: -

Citation: Coovattanachai O., Lasutta P., Tosangthum N., Krataitong R. and Morakot M., Analysis of Compaction and Sintering of Stainless Steel Powders, Chiang Mai Journal of Science, 2006; 33(3): 293-300.

Abstract

Compaction and sintering are basic processing steps employed for producing powder metallurgy (P/M) parts. Information of materials property change during the processing steps is primarily essential for design and manufacturing engineers. In this study, stainless steel powders (316L, 304L, 409L and 434L) were selected for investigation on the effect of densities on mechanical property. It was found that measurable parameters such as green density, sintered density and mechanical property showed linear relationships with one another for the 304L stainless steel powder. Equations, derived by using Least Square Method (LSM), may be employed with high confident for the 304L stainless steel powder. LSM analyses for other materials (316L, 409L and 434L) failed to get good agreement between the experimental data and the LSM results. Equations, derived by using LSM, are not recommended for the 316L, 409L and 434L stainless steel powders.

Keywords: density, Least Square Method, mechanical property, stainless steel powders

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