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Effect of External Forced Flow and Boiling Film on Heat Transfer of AISI 4140 Steel Horizontal Rod During Direct Quenching 被引量：1

Effect of External Forced Flow and Boiling Film on Heat Transfer of AISI 4140 Steel Horizontal Rod During Direct Quenching
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摘要 The effects of rod falling and moving, external flow field, boiling film and radiation were investigated on fluid flow and heat transfer of AISI 4140 steel horizontal rod during direct quenching by mathematical modeling. The flow field and heat transfer in quenching tank were simulated by computational fluid dynamics （CFD） method considering falling and moving of rods during process. Therefore, modeling of flow field was done by a fixed-mesh method for general moving objects equations, and then, energy equation was solved with a numerical approach so that effeet of boiling film heat flux was considered as a source term in energy equation for solid-liquid boundary. Simulated results were verified by comparing with published and experimental data and there was a good agreement between them. Also, the effects of external forced flow and film boiling were investigated on heat flux output, temperature distribution and heat transfer coefficient of rod. Also simulated results determined optimum quenching time for this process. The effects of rod falling and moving, external flow field, boiling film and radiation were investigated on fluid flow and heat transfer of AISI 4140 steel horizontal rod during direct quenching by mathematical modeling. The flow field and heat transfer in quenching tank were simulated by computational fluid dynamics （CFD） method considering falling and moving of rods during process. Therefore, modeling of flow field was done by a fixed-mesh method for general moving objects equations, and then, energy equation was solved with a numerical approach so that effeet of boiling film heat flux was considered as a source term in energy equation for solid-liquid boundary. Simulated results were verified by comparing with published and experimental data and there was a good agreement between them. Also, the effects of external forced flow and film boiling were investigated on heat flux output, temperature distribution and heat transfer coefficient of rod. Also simulated results determined optimum quenching time for this process.
作者 A H Meysami R Ghasemzadeh S H Seyedein M R Aboutalebi
机构地区 Department of Metallurgy and Material Engineering Centre of Excellent for Advanced Material and Processing
出处 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2011年第10期34-41,共8页
关键词 direct quenching AISI 4140 moving object heat transfer modeling direct quenching AISI 4140 moving object heat transfer modeling
分类号 TG156.3 [金属学及工艺—热处理]
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参考文献15

  • 1Meysami A H, Ghasemzadeh R, Seyedein S H, et al. An In- vestigation on the Microstructure and Mechanical Properties of Direct Quenched and Tempered AISI 4140 Steel [J]. Materials and Design, 2010, 31(3): 1570.
  • 2Ju D Y, Zhang W M, Zhang Y. Modeling and Experimental Verification of Martensitic Transformation Plastic Behavior in Carbon Steel for Quenching Process [J]. Materials Science and Engineering, 2006, 438- 440: 246.
  • 3ASM. ASM Metals Handbook. Heat Treating Vol. 4 [M].Metals Park: American Society for Metals, 1991.
  • 4Grum J, Bozic S, Zupancic M. Influence of Quenching Process Parameters on Residual Stresses in Steel [J]. Journal of Mate rials Processing Technology, 2001, 114(1): 57.
  • 5Meysami A H. Optimization of Thermo Mechanical Behavior and Direct Quenching of AISI 4140 Steel Using Physical and Numerical Simulation [D]. Tehran: School of Metallurgy and Material Engineering, Iran University of Science and Technol ogy, 2010 (in Persian).
  • 6Sotudian H R. Simulation of AISI 4140 Steel Bars Hot Rolling [D]. Tehran: Faculty of Material Science and Engineering, Iran University of Science and Technology, 2009 (in Persian).
  • 7Sarmiento G S, Bugna J F, Canale L C F, et al. Modeling Quenching Performance by the Kuyucak Method [J]. Materi als Science and Engineering, 2007, 459A(1/2): 383.
  • 8Kandlikar S G. Handbook of Phase Change: Boiling and Con densation [M]. New York: CRC Press, 1999.
  • 9Fukuda K, Shiotsu M, Sakurai A. Effect of Surface Conditions on Transient Critical Heat Fluxes for a Horizontal Cylinder in a Pool of Water at Pressures Due to Exponentially Increasing Heat Inputs[J].Nuclear Engineering and Design, 2000, 200 (1/2): 55.
  • 10Wendelstorf J, Spitzer K H, Wendelstorf R. Spray Water Cooling Heat Transfer at High Temperatures and Liquid Mass Fluxes[J].International Journal of Heat and Mass Transfer, 2008, 51(19/20): 4902.

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Journal of Iron and Steel Research International
2011年 第10期

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