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Ki, Hyungson
Laser Processing & Multiphysics Systems Laboratory
Research Interests
  • Laser materials processing
  • Laser material interaction


Process map for laser heat treatment of carbon steels

DC Field Value Language Ki, Hyungson ko So, Sangwoo ko 2014-04-10T02:14:55Z - 2013-06-21 ko 2012-10 ko
dc.identifier.citation OPTICS AND LASER TECHNOLOGY, v.44, no.7, pp.2106 - 2114 ko
dc.identifier.issn 0030-3992 ko
dc.identifier.uri -
dc.description.abstract We propose a process map for diode-laser heat treatment of carbon steels. After first identifying a heat treatable region in terms of laser intensity and interaction time using a heat conduction model, two most important factors in heat treatment, carbon diffusion time in austenite and cooling time, are calculated and plotted in the heat treatable region. Because overall characteristics of laser heat treatment for a given steel type can be graphically visualized on a map, this map can be used in the determination of optimal process parameters. Hardening depth is also calculated using the concept of the critical effective carbon diffusion time. For demonstration and validation purposes, we have systematically conducted laser heat treatment on AISI 1020 and 1035 steel specimens using a 3 kW diode laser and measured surface hardness and hardening depth. The experimental results are in agreement with the calculated process map. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher ELSEVIER SCI LTD ko
dc.title Process map for laser heat treatment of carbon steels ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84861528655 ko
dc.identifier.wosid 000305371800019 ko
dc.type.rims ART ko
dc.description.scopustc 3 * 2014-07-12 *
dc.identifier.doi 10.1016/j.optlastec.2012.03.018 ko
dc.identifier.url ko
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