Document Type thesis Author Name Rondeau, Darrell K URN etd-0512104-174214 Title The effects of part orientation and fluid flow on heat transfer around a cylinder. Degree MS Department Materials Science & Engineering Advisors Professor Richard Sisson Jr., Advisor Md Maniruzziman, Committee Member Yeming Rong, Committee Member Keywords quenching residual stress distortion Date of Presentation/Defense 2004-05-06 Availability unrestricted
The effects of quenchant flow around a 4140 steel cylinder have been experimentally investigated. An apparatus was developed to repeatably immerse a two inch diameter by eight inch long probe into an agitated quench tank. The probes were normalized prior to quench to relieve any residual stresses. Distortion, residual stress and hardness were experimentally measured. The results verified that there was a variation of cooling rate in respect to quenchant flow around the cylinder. The data showed that there was a higher cooling rate nearest to the quenchant flow versus a much lower cooling rate away from the flow. Computational fluid dynamics are also presented to give insight into the behavior of the quenchant flow in the tank and around the cylinder.
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