Isothermal Fatigue Behavior and Residual Stress States of Mechanically Surface Treated Ti-6Al-4V: Laser Shock Peening vs. Deep Rolling
- In this paper, the high-temperature fatigue behavior and residual stress states of a Ti-6Al-4V alloy are investigated after mechanical surface treatment. In particular, the two surface treatments investigated, laser shock peening and deep rolling, were observed to result in significantly different residual stress states. The consequent isothermal fatigue behavior at elevated temperatures, characterized using cyclic deformation curves, are discussed in terms of the stability of the near-surface work hardening and compressive residual stresses. Despite pronounced relaxation of the residual stresses, both laser shock peening and deep rolling led to a significant improvement in the cyclic deformation behavior and, hence, increased fatigue lifetimes at elevated temperatures as compared to untreated materials states.
Author: | Ulf Noster, Igor Altenberger, Robert O. Ritchie, Berthold Scholtes |
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DOI: | https://doi.org/10.1002/3527606580.ch57 |
ISBN: | 9783527606580 |
Parent Title (English): | Shot peening |
Publisher: | Wiley-VCH |
Place of publication: | Weinheim; [Cambridge] |
Editor: | Lothar Wagner |
Document Type: | Part of a Book |
Language: | English |
Year of first Publication: | 2003 |
Release Date: | 2023/07/25 |
First Page: | 447 |
Last Page: | 453 |
Institutes: | Fakultät Maschinenbau |
Technologie-Campus Parsberg-Lupburg | |
Fakultät Maschinenbau / Labor Werkstoffrandschichtanalytik | |
Publication: | Externe Publikationen |
research focus: | Produktion und Systeme |
Licence (German): | Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG |