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Enhancement of fatigue and corrosion properties of pure Ti by sandblasting

✍ Scribed by X.P. Jiang; X.Y. Wang; J.X. Li; D.Y. Li; C.-S. Man; M.J. Shepard; T. Zhai

Book ID: 104061517
Publisher: Elsevier Science
Year: 2006
Tongue: English
Weight: 753 KB
Volume: 429
Category: Article
ISSN: 0921-5093
DOI: 10.1016/j.msea.2006.04.024

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✦ Synopsis

Commercially pure titanium was sandblasted with SiO 2 particles of 200-300 m in diameter. It was found that the sandblasted samples exhibited an increase in fatigue strength by 11% over that of the untreated samples. The peak subsurface compressive residual stress produced by sandblasting was measured by XRD to be around 480 MPa. Three distinct regions were observed in the sandblasted samples, namely the severely deformed surface layer, the region deformed mainly by twinning, and the substrate. After recovery treatment below 300 • C, the surface layer of the sandblasted samples was transformed into a nano-crystalline structure, and its corrosion resistance was significantly improved.

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