Effects of the Laser Power on the Microstructure and Microhardness of the Carbonitrided 45 Steel

Hong Mei Zhu; Ru Shu Peng; Chao Hui Weng

doi:10.4028/www.scientific.net/AMM.291-294.2613

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Corrosion Failure Analysis of 35CrMo Bolt in Wet Hydrogen Sulfide Environment
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 291-294Effects of the Laser Power on the Microstructure...

Effects of the Laser Power on the Microstructure and Microhardness of the Carbonitrided 45 Steel

Abstract:

The 45 steel was processed by laser remelting after the carbonitriding heat treatment in this study. The microstructure morphology and microhardness of the laser-remelting layer at different laser powers were investigated by scanning electron microscope (SEM) and microhardness tester, respectively. The results show that a compact microstructure and a homogeneous element distribution can be achieved at the laser power of 1.2 kW under the given other laser parameters, and the microhardness was enhanced greatly.

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Periodical:

Applied Mechanics and Materials (Volumes 291-294)

Pages:

2613-2616

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.291-294.2613

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Online since:

February 2013

Authors:

Hong Mei Zhu, Ru Shu Peng, Chao Hui Weng

Keywords:

45 Steel, Carbonitriding, Laser Power, Laser Remelting

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