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http://dx.doi.org/10.3744/SNAK.2005.42.5.472

Prediction of Plate Deformation Considering Film Boiling in Water Cooling Process after Line Heating  

Ha, Yun-Sok (Dept. of Naval Architecture and Ocean Engineering, Seoul National University)
Kim, Jung-Soo (Doosan Heavy Industries and Construction Co., LTD.)
Jang, Chang-Do (Dept. of Naval Architecture and Ocean Engineering, Seoul National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.42, no.5, 2005 , pp. 472-478 More about this Journal
Abstract
From a rapid cooling to a slow cooling in the actual cooling process in shipyards, the phase of steel becomes martensite, bainite, ferrite, and pearlite. In order to simulate the cooling process, heat transfer analysis was performed considering the effects of impinging water jet, film boiling, and radiation. From above simulation it is possible to find the cooling speed at the inherent strain region and volume percentage of all phases in that region. By the suggested method based on the precise material properties calculated from volume percentage of all phases, it will be possible to predict the plate deformations by line heating more precisely. It is verified by comparing with some experimental results that the present method is very effective and efficient.
Keywords
Impinging jet; Inherent strain; Phase transformation; Film boiling; Line heating;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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