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Metals 2016, 6(11), 290;

Effect of Surface Texturing on Stresses during Rapid Changes in Temperature

1,2,3,* , 3
Light Alloy Research Institute, Central South University, Changsha 410083, China
Nonferrous Metal Oriented Advanced Structural Material and Manufacturing Cooperative Innovation Center, Central South University, Changsha 410083, China
State Key Laboratory of High-Performance Complex Manufacturing, Central South University, Changsha 410083, China
Author to whom correspondence should be addressed.
Academic Editor: Hugo F. Lopez
Received: 24 September 2016 / Revised: 14 November 2016 / Accepted: 17 November 2016 / Published: 23 November 2016
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Recently, there has been great interest in the application of the surface texturing method to enhance material surface performance. Material surfaces sometimes experience rapid temperature changes, and the local surface will obviously generate thermal stresses, which may be detrimental to the material structure. In order to understand the relationship between surface texturing and stresses, a numerical approach is used to investigate the effects of surface texturing on stresses. The results show that surface texturing can generate compressive stresses along the normal direction of the surface, and that strong tensional stresses can be formed in the center of a surface at the same time that are beneficial to material surface performance. However, a smooth surface cannot generate these beneficial stresses. In addition, there is an optimum design size with respect to textures, and the most desirable state of stress in a surface layer can be achieved at this size. View Full-Text
Keywords: surface texturing; stresses; modeling surface texturing; stresses; modeling

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Han, L.; Wu, Y.; Gong, H.; Shi, W. Effect of Surface Texturing on Stresses during Rapid Changes in Temperature. Metals 2016, 6, 290.

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