ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A PADS (Plasma Assisted Debinding and Sintering) reactor developed by Lupatech S.A.has been employed to MIM process two Ni-based superalloys under Argon, at temperatures in the1280 -1310 ºC range, and for 2 to 3 hours. Both materials have chemical compositions similar to thatof standard Nimonic® 90 but differ considerably in their powder characteristics. One type of powderwas gas-atomized whereas the other was water-atomized. Samples of both materials in as-sinteredstates as well as subject to different HIP and heat treating conditions have been characterizedmechanically in tensile tests and by HV measurements. The best overall results are attained by thewater-atomized material sintered at lower temperatures. The PADS processing of these superalloysshows marked advantages over more conventional PM processing technologies. These results areparticularly relevant to the development of turbine components for the automotive and aerospaceindustries
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/19/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.591-593.252.pdf
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