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An Experimental Study of Heat Transfer During Forced Air Convection

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Abstract

Cast aluminum alloys are usually subject to solution treatment, quenching, and aging hardening for improved mechanical properties. Cooling rate during quenching plays an important role in residual stress, distortion, and mechanical property distributions in the resultant cast aluminum components. As the cooling rates of work pieces heavily depend on the interfacial heat transfer coefficient (HTC) between work pieces and quenchants, it is important to understand how HTC varies with different quenching conditions so that optimal quenching process can be achieved. In this study, a quenching system and an experimental procedure of obtaining HTC are presented. A series of experiments have been conducted to study the variations of HTC with respect to air temperature, air humidity, air velocity, and part orientation.

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Acknowledgment

This study received partial financing support from the General Motors Company.

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Authors and Affiliations

  1. Center for Heat Treating Excellence (CHTE), Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA

    Bowang Xiao, Gang Wang, Mohammed Maniruzzaman, Richard D. Sisson Jr. & Yiming Rong

  2. General Motors Company, Global Product Engineering, Pontiac, MI, 48340, USA

    Qigui Wang

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  1. Bowang Xiao
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  2. Gang Wang
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  3. Qigui Wang
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  4. Mohammed Maniruzzaman
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  5. Richard D. Sisson Jr.
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  6. Yiming Rong
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Correspondence to Bowang Xiao.

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Xiao, B., Wang, G., Wang, Q. et al. An Experimental Study of Heat Transfer During Forced Air Convection. J. of Materi Eng and Perform 20, 1264–1270 (2011). https://doi.org/10.1007/s11665-010-9745-7

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  • DOI: https://doi.org/10.1007/s11665-010-9745-7

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