An Empirical Model for Carbon Diffusion in Austenite Incorporating Alloying Element Effects
نویسندگان
چکیده
منابع مشابه
Diffusion of carbon in substitutionally alloyed austenite
where k and h are the Boltzmann and Planck constants, respectively, W is the number of octahedral interstices around a single such interstice, ~F* is an activation free energy, r m is an activity coefficient and), is the distance betwe-en (002) austenite planes. <1'= 1exp(-wy/kT); Wy is the nearest neighbour carbon-carbon interaction energy in austenite. () is the ratio of the number of carbon ...
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Carbon Diffusion in Austenite: Computer Simulation and Theoretical Analysis
1. Introduction Carbon interstitial diffusion in austenite (γ-Fe) has been studied experimentally and analytically for many years. Two experimental studies have been made of carbon diffusion in austenite at low carbon contents. One is a measurement of the carbon chemical or intrinsic diffusion coefficient at 1075 K, 1124 K and 1273 K, and as a function of carbon content [1]; the other is a meas...
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ژورنال
عنوان ژورنال: ISIJ International
سال: 2011
ISSN: 0915-1559,1347-5460
DOI: 10.2355/isijinternational.51.1903