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:
Cooperative growth of pearlite is simulated for eutectoid steel using the multi-phase fieldmethod. This allows to take into account diffusion of carbon not only in γ phase, but also in α phase.The lamellar spacing and growth velocity are estimated for different undercoolings and comparedwith experimental results from literature and theoretical results from analytical models. It is predicted,that diffusion in ferrite and growth of cementite from the ferrite increase the kinetics of pearlitictransformation by a factor of four as compared to growth from austenite only, which is assumed by theclassical Zener-Hillert model. Further on the effect of stress due to inhomogeneous carbondistribution in austenite and due to transformation strain is discussed shortly
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/17/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.558-559.1013.pdf
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