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Article: Theoretical and experimental studies on laser transformation hardening of steel by customized beam
Title | Theoretical and experimental studies on laser transformation hardening of steel by customized beam |
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Authors | |
Keywords | Exact solution Flat-top rectangular beam Laser transformation hardening Moving phase-change interface |
Issue Date | 2007 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhmt |
Citation | International Journal Of Heat And Mass Transfer, 2007, v. 50 n. 23-24, p. 4600-4606 How to Cite? |
Abstract | An exact solution was developed for a quasi-steady-moving-interface heat transfer problem in laser transformation hardening by a beam customized to a flat-top rectangular shape. The absorption and release of the latent heat were taken into account. The solution provided the body temperature, heating rate, and subsequent cooling rate. Using the IT and CCT diagrams, the rapid austenitization and pearlitic/martensitic phase transformation were determined for prediction of the hardening effect. In the experimental study, a diffractive optical kinoform (DOK) was used to customize a conventional Gaussian laser spot beam to a flat-top rectangular beam. A reasonable agreement between the theoretical predictions and the experimental measurements was obtained. © 2007 Elsevier Ltd. All rights reserved. |
Persistent Identifier | http://hdl.handle.net/10722/75758 |
ISSN | 2023 Impact Factor: 5.0 2023 SCImago Journal Rankings: 1.224 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Leung, MKH | en_HK |
dc.contributor.author | Man, HC | en_HK |
dc.contributor.author | Yu, JK | en_HK |
dc.date.accessioned | 2010-09-06T07:14:16Z | - |
dc.date.available | 2010-09-06T07:14:16Z | - |
dc.date.issued | 2007 | en_HK |
dc.identifier.citation | International Journal Of Heat And Mass Transfer, 2007, v. 50 n. 23-24, p. 4600-4606 | en_HK |
dc.identifier.issn | 0017-9310 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/75758 | - |
dc.description.abstract | An exact solution was developed for a quasi-steady-moving-interface heat transfer problem in laser transformation hardening by a beam customized to a flat-top rectangular shape. The absorption and release of the latent heat were taken into account. The solution provided the body temperature, heating rate, and subsequent cooling rate. Using the IT and CCT diagrams, the rapid austenitization and pearlitic/martensitic phase transformation were determined for prediction of the hardening effect. In the experimental study, a diffractive optical kinoform (DOK) was used to customize a conventional Gaussian laser spot beam to a flat-top rectangular beam. A reasonable agreement between the theoretical predictions and the experimental measurements was obtained. © 2007 Elsevier Ltd. All rights reserved. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhmt | en_HK |
dc.relation.ispartof | International Journal of Heat and Mass Transfer | en_HK |
dc.subject | Exact solution | en_HK |
dc.subject | Flat-top rectangular beam | en_HK |
dc.subject | Laser transformation hardening | en_HK |
dc.subject | Moving phase-change interface | en_HK |
dc.title | Theoretical and experimental studies on laser transformation hardening of steel by customized beam | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0017-9310&volume=50&issue=23-24&spage=4600&epage=4606&date=2007&atitle=Theoretical+and+experimental+studies+on+laser+transformation+hardening+of+steel+by+customized+beam | en_HK |
dc.identifier.email | Leung, MKH: | en_HK |
dc.identifier.authority | Leung, MKH=rp00148 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.ijheatmasstransfer.2007.03.022 | en_HK |
dc.identifier.scopus | eid_2-s2.0-34748891373 | en_HK |
dc.identifier.hkuros | 147593 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-34748891373&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 50 | en_HK |
dc.identifier.issue | 23-24 | en_HK |
dc.identifier.spage | 4600 | en_HK |
dc.identifier.epage | 4606 | en_HK |
dc.identifier.isi | WOS:000250789600008 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Leung, MKH=8862966600 | en_HK |
dc.identifier.scopusauthorid | Man, HC=7102326766 | en_HK |
dc.identifier.scopusauthorid | Yu, JK=16178422800 | en_HK |
dc.identifier.issnl | 0017-9310 | - |