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A method and its optimal parameters for the measurement of mass transfer coefficient in heat treatment furnaces
conference contribution
posted on 2012-01-01, 00:00 authored by Weimin Gao, Lingxue KongLingxue Kong, Peter HodgsonPeter HodgsonThe mass transfer coefficient is an important kinetic factor to control the thermo-chemical treatment processes of metals and alloys. More importantly, the mass transfer coefficient is different at different surface positions of a metallic part treated, which depends on the dynamic characteristics of the atmosphere close to the treated surface. Understanding the local mass transfer coefficient would be significant to approach the expected physical and mechanical properties of treated surfaces. In this paper, a reverse method was proposed to measure the mass transfer coefficient at component surface and the diffusivity in metal during heat treatment. The methodology of the reverses method and the optimal parame-ters are discussed in some detail. This method was successfully used to determine the car-bon transfer coefficient at the surface of a part in a carburizing furnace and carbon diffusiv-ity from the carbon distribution within the diffusion layer.
History
Event
Advances in Materials & Processing Technologies. Conference (15th : 2012 : Wollongong, New South Wales)Pagination
1 - 5Publisher
University of WollongongLocation
Wollongong, New South WalesPlace of publication
Wollongong, N. S. W.Start date
2012-09-23End date
2012-09-26Language
engPublication classification
E1 Full written paper - refereedTitle of proceedings
AMPT 2012 : Proceedings of the 15th Advances in Materials & Processing Technologies ConferenceUsage metrics
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