Title: The effect of quench paths on hardness in an infinitely long aluminium cylinder

Authors: Xianwu Ling, Harish P. Cherukuri, R.E. Smelser, Paul T. Wang

Addresses: Center for Advanced Vehicle Systems, Mississippi State University, Mail Stop 9618, 200 Research Boulevard, Starkville, MS 39759, USA. ' Department of Mechanical Engineering and Engineering Science, UNC-Charlotte, 9201 University City Boulevard, Charlotte, NC 28223-0001, USA. ' The William States Lee College of Engineering, The University of North Carolina at Charlotte, Charlotte, NC 28223-0001, USA. ' Centre for Advanced Vehicle Systems, Mississippi State University, Mail Stop 9618, 200 Research Boulevard, Starkville, MS 39759, USA

Abstract: A single-internal variable constitutive model is used to predict the micro-hardness for a commercial purity aluminium alloy subjected to various quenching histories. The delayed quenching, higher nucleate boiling amplitude, and wider nucleate boiling range increase the micro-hardness. A limited study of the effect of cylinder size does not yield significant changes in the microhardness. The modelling methodology developed here can be used in modelling commercial quenching processes.

Keywords: hardness; quenching process; commercial purity aluminium; quench paths; infinitely long aluminium cylinders; constitutive modelling; aluminium alloys; microhardness; heat treatment.

DOI: 10.1504/IJMPT.2005.007960

International Journal of Materials and Product Technology, 2005 Vol.24 No.1/2/3/4, pp.347 - 360

Published online: 06 Oct 2005 *

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