High power diode laser transformation hardening on U74 rail steel - 文章详情页

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摘要：

Laser　transformation　hardening　was　carried　out　on　U74　rail　steel　by　a　self-developed　high　power　diode　laser.　The　results　show　that　the　hardness　of　the　hardened　layer　of　the　steel　can　reach　800~900　HV0.01,　and　is　3~4　times　of　the　substrate　steel＇s.　In　addition,　it　is　quite　differences　between　the　hardened　layers　scanned　along　fast　beam　axis　and　slow　beam　axis,　the　hardened　layer　is　deeper　when　scanned　along　slow　beam　axis　direction,　but　the　hardness　falls　down　rapidly　in　the　transition　zone.　Overall,　the　high　power　diode　laser　is　more　competitive　for　surface　hardening　in　laser　processing　field.

关键词：

High power diode laser; Transformation hardening; U74 rail steel

作者机构：

[ 1 ] [Su, G.-Q.]College of Laser Engineering, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Wang, Z.-Y.]College of Laser Engineering, Beijing University of Technology, Beijing 100022, China
[ 3 ] [Cao, Y.-H.]College of Laser Engineering, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Ding, P.]College of Laser Engineering, Beijing University of Technology, Beijing 100022, China
[ 5 ] [Hu, Y.]College of Laser Engineering, Beijing University of Technology, Beijing 100022, China
[ 6 ] [Li, N.]College of Laser Engineering, Beijing University of Technology, Beijing 100022, China
[ 7 ] [Zuo, T.-C.]College of Laser Engineering, Beijing University of Technology, Beijing 100022, China

通讯作者信息：

[Su, G.-Q.]College of Laser Engineering, Beijing University of Technology, Beijing 100022, China

电子邮件地址：

zywang@bjut.edu.cn

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