Study of Quenching Organization Property under Wind Cooling Condition

Fu Quan Tu; Yang Mao; Ren Bo Xu

doi:10.4028/www.scientific.net/AMM.487.682

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 487Study of Quenching Organization Property under...

Study of Quenching Organization Property under Wind Cooling Condition

Abstract:

In this paper, the steel of U71Mn specifications for 60kg/m heavy rail is seen as a research object. Experimental method is employed to study the heavy rail hardened layer, including surface hardness, micro-structure and cross-sectional hardness under different cooling time during quenching. Experimental results showed that obtained heavy rail after wind cooling quenching finally met the Tb/T2344-2003 43-75 kg/m standard. Best quenching treatment condition is found and the defect is reduced to large extent when quenching time is 40 seconds, cooling time is 40 to 45 seconds, superior to the traditional spray cooling condition. These results provide an important reference for the quenching process of heavy rail.

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Periodical:

Applied Mechanics and Materials (Volume 487)

Pages:

682-686

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.487.682

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Online since:

January 2014

Authors:

Fu Quan Tu*, Yang Mao, Ren Bo Xu

Keywords:

Hardened Layer, Organization Property, Quenching, Wind Cooling

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* - Corresponding Author

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