ISSN:
1662-8985
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:
Ni-free austenitic steels containing high nitrogen have been developed to protectagainst earth resource. High nitrogen steels (HNS) have a lot of advantages, e.g., HNS have highstrength, corrosion resistance, toughness, work hardening rate and large rocking parameter in theHall-Petch equation. On the other hand, it is difficult to fabricate HNS by IM method under 0.1MPa and to work at room temperature. We have tried to make HNS by combined use of metalinjection molding method (MIM) and nitrogen absorption method. Powder compositions used wasFe-17Cr-12Mn-3Mo.The benefit of this method is to make metal parts in near net shape. In order touse this method, we should know the sintering heat schedule, timing for introducing nitrogen gas,gas pressure and setter material etc. Therefore, the shrinkage rate, density and the solution-treatedmicrostructure of MIM compacts were examined to find out the optimum conditions
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.15.pdf
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