Effect of Surface Nano-Crystallization on Microstructure and Mechanic Properties of Commercial Pure Titanium

Ai Ling Wen; R.M. Ren; Sheng Wu Wang; Shinichi Nishida

doi:10.4028/www.scientific.net/KEM.261-263.1605

Paper Titles

Characteristics of Laser Speckle Measurement of Tooth Roughness
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Surface Effect for Different Types of Materials in Nanoindentation
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Image Reconstruction and Analysis of Three-Dimensional Fracture Surfaces Based on the Stereo Matching Method
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Influence of the Surface Topography on the Micromechanical Properties and Performance of a CMP Finished AlN Component for Silicon Plasma Etching
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Effect of Surface Nano-Crystallization on Microstructure and Mechanic Properties of Commercial Pure Titanium
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Measurement of Elastic Constants for Composite Materials by 3-Point Bending, Twisting and Impact Sound Test
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Damage Properties of PEEK Films Irradiated by Atomic Oxygen
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Effect of Electric Weld Current on Spatter Reduction in Spot Welding Process
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Mechanical Behavior of the Long Rod Penetrator during Launch
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 261-263Effect of Surface Nano-Crystallization on...

Effect of Surface Nano-Crystallization on Microstructure and Mechanic Properties of Commercial Pure Titanium

Abstract:

The paper investigated nano-crystallization on surface layer of commercial pure titanium by using high-energy shot peening. The grain size and the microstructure in deformed surface layer by high-energy shot peening are analyzed with X-ray diffraction and TEM etc. In addition, the variations of surface microhardness are examined after high-energy shot peening. The results described that the nano-crystalline surface layer have been formed in commercial pure titanium with a structure of hexagonal closet packet, by high-energy shot peening. The surface microhardness increases and the grain size in nano-crystalline surface layer diminishes, with increasing the time in high-energy shot peening. The minimum nano-crystalline grain size is approximately 40 nm.