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

Abstract:

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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.

Info:

Periodical:

Key Engineering Materials (Volumes 261-263)

Edited by:

Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka

Pages:

1605-1610

DOI:

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

Citation:

A. L. Wen et al., "Effect of Surface Nano-Crystallization on Microstructure and Mechanic Properties of Commercial Pure Titanium", Key Engineering Materials, Vols. 261-263, pp. 1605-1610, 2004

Online since:

April 2004

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$35.00

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