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:
There is a glaring need for omitting intermediate heat treatments in the manufacturingprocesses of carburized parts and increasing the carburizing temperature aimed at cost reduction. Itis necessary to develop techniques to inhibit grain-coarsening since some austenite grains tend togrow abnormally during carburizing and coarse grains have negative effects on the properties ofparts. Therefore, we developed new techniques to inhibit grain-coarsening by refining precipitates’size and increasing their volume fraction based on the abnormal grain growth theory by Gladman.In this study, AlN and Nb(CN) were chosen as the precipitate particles for the pinning of austenitegrain growth. And we investigated grain-coarsening behavior in several manufacturing processes ofparts. As a result, we developed anti-coarsening steels for various manufacturing processes ofcarburized parts
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.4855.pdf
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