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FACTORS CONTROLLING THE FATIGUE STRENGTH OF NITRIDED TITANIUM

FACTORS CONTROLLING THE FATIGUE STRENGTH OF NITRIDED TITANIUM Abstract— The factors affecting the fatigue strength of nitrided titanium were clarified. The fatigue strength depended strongly on the fracture strength of the compound layer formed on the surface by nitriding. We found a Hall‐Petch relationship between the fatigue strength of nitrided titanium and the grain size. The findings indicated that the reduction in the fatigue strength by nitriding results from both the formation of the compound layer possessing low fracture strength and grain growth occurring from ordinary nitriding. Furthermore, low‐temperature nitriding (620°C, 24 h) was proposed to suppress grain growth. This treatment method improved not only the wear resistance and the corrosion resistance but also the fatigue strength of titanium. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fatigue & Fracture of Engineering Materials and Structures Wiley

FACTORS CONTROLLING THE FATIGUE STRENGTH OF NITRIDED TITANIUM

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References (7)

Publisher
Wiley
Copyright
Copyright © 1997 Wiley Subscription Services, Inc., A Wiley Company
ISSN
8756-758X
eISSN
1460-2695
DOI
10.1111/j.1460-2695.1997.tb00404.x
Publisher site
See Article on Publisher Site

Abstract

Abstract— The factors affecting the fatigue strength of nitrided titanium were clarified. The fatigue strength depended strongly on the fracture strength of the compound layer formed on the surface by nitriding. We found a Hall‐Petch relationship between the fatigue strength of nitrided titanium and the grain size. The findings indicated that the reduction in the fatigue strength by nitriding results from both the formation of the compound layer possessing low fracture strength and grain growth occurring from ordinary nitriding. Furthermore, low‐temperature nitriding (620°C, 24 h) was proposed to suppress grain growth. This treatment method improved not only the wear resistance and the corrosion resistance but also the fatigue strength of titanium.

Journal

Fatigue & Fracture of Engineering Materials and StructuresWiley

Published: Jan 1, 1997

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