The absorptivity of low-carbon steel under Nd:YAG CW laser loading

GuiBing Wang; ChunYan Wang; YongQiang Zhang; Xin Xiong; XiaoSong Tang

doi:10.1117/12.816999

21 April 2009 The absorptivity of low-carbon steel under Nd:YAG CW laser loading

GuiBing Wang, ChunYan Wang, YongQiang Zhang, Xin Xiong, XiaoSong Tang

Proceedings Volume 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 71311N (2009) https://doi.org/10.1117/12.816999
Event: XVII International Symposium on Gas Flow and Chemical Lasers and High Power Lasers, 2008, Lisboa, Portugal

Abstract

Two integrating sphere system using the substitution method have been built to measure the reflectivity of 30CrMnSiA irradiated by Nd:YAG continuous wave laser with a wavelength of 1064nm.It can prevent the fluctuation of laser output energy. The back surface temperature was recorded using NiCr-NiAl thermocouples. Surface oxide film composition and thickness were studied by XPS and XRD. A one-dimensional heat conduction model implementing a parabolic oxide growth law was developed to obtain the temperature-dependent reflectivity. The computational and experimental results are well accordant with each other.

Citation Download Citation

GuiBing Wang, ChunYan Wang, YongQiang Zhang, Xin Xiong, and XiaoSong Tang "The absorptivity of low-carbon steel under Nd:YAG CW laser loading", Proc. SPIE 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 71311N (21 April 2009); https://doi.org/10.1117/12.816999

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