Fundamental Compacting and Sintering of Stainless Steel 409L Powders
Ornmanee Coovattanachai* [a], Bhanu Vetayanugul [a], Rungtip Krataitong [a], Prayoon Lasutta [a],* Author for corresponding; e-mail address: ornmanc@mtec.or.th
Volume: Vol.32 No.1 (JANUARY 2005)
Research Article
DOI:
Received: 24 May 2004, Revised: -, Accepted: 5 October 2004, Published: -
Citation: Coovattanachai O., Vetayanugul B., Krataitong R. and Lasutta P., Fundamental Compacting and Sintering of Stainless Steel 409L Powders, Chiang Mai Journal of Science, 2005; 32(1): 23-30.
Abstract
The P/M 409L stainless steel exhibits good mechanical properties, corrosion resistance and ferromagnetic property. It is thus promising for producing engineering parts whose properties mentioned above are important. Material behaviors during basic powder metallurgy P/M) processes, namely compaction and sintering, have been investigated. With a fixed green density of 6.54 g/cm3, the optimum processing conditions (debinding at 600°C for 60 minutes, under argon atmosphere, and sintering at 1,350°C for 45 minutes under pure hydrogen atmosphere), are concluded for the P/M 409L stainless steel.