Investigation of Thermal Damage and the Consequent Fatigue Property of Laser Surface Heat Treated Component

W. Tian; C. Zeng; L. Hua

doi:10.4028/www.scientific.net/KEM.525-526.241

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 525-526Investigation of Thermal Damage and the Consequent...

Investigation of Thermal Damage and the Consequent Fatigue Property of Laser Surface Heat Treated Component

Abstract:

In order to signify the thermal damage and the influence it has on the fatigue property, a 3D finite element method, as well as experiment investigation, was employed for this research. By the study, it suggests that laser surface scanning can bring about some tensile residual stress and a heat affected zone in the workpiece, so as to lead a fall in fatigue life cycles. Since the fatigue character is affected by the residual stress and the microstructure change, which relate to the laser process parameters, it is expected to draw a scalar variable from stress feature and microstructure parameter to stand the level of thermal damage influence.

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Periodical:

Key Engineering Materials (Volumes 525-526)

Pages:

241-244

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.525-526.241

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Online since:

November 2012

Authors:

W. Tian, C. Zeng, L. Hua

Keywords:

Fatigue Property, Finite Element Analysis (FEA), Laser Surface Treatment, Thermal Damage

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