Journal ArticleDOI
Surface prestressing to improve fatigue strength of components by laser shot peening
TLDR
Laser shot peening has been developed as a surface treatment to metals as mentioned in this paper, which has been shown to induce surface residual stresses comparable to those achieved by conventional shot-peening, but to much greater depths.About:
This article is published in Optics and Lasers in Engineering.The article was published on 2000-10-01. It has received 151 citations till now. The article focuses on the topics: Peening & Shot peening.read more
Citations
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Journal ArticleDOI
Advances in engineered surfaces for functional performance
TL;DR: In this article, the authors report the advances in the state of the art considering the relationships between the properties of functional surfaces, their applications and the technologies to engineer surfaces, and their applications in many advanced fields, such as: electronics, information technology, energy, optics, tribology, biology and biomimetics.
Journal ArticleDOI
On the influence of mechanical surface treatments—deep rolling and laser shock peening—on the fatigue behavior of Ti–6Al–4V at ambient and elevated temperatures
TL;DR: In this paper, the effect of DR on the low-cycle fatigue (LCF) and high cycle fatigue (HCF) behavior of a Ti-6Al-4V alloy is examined, with particular emphasis on the thermal and mechanical stability of the residual stress states and the near-surface microstructures.
Journal ArticleDOI
Laser Peening Process and Its Impact on Materials Properties in Comparison with Shot Peening and Ultrasonic Impact Peening
TL;DR: The laser shock peening (LSP) process using a Q-switched pulsed laser beam for surface modification has been reviewed and enhancements in the surface micro and nanohardness, elastic modulus, tensile yield strength and refinement of microstructure which translates to increased fatigue life and fretting fatigue life, stress corrosion cracking (SCC) and corrosion resistance were addressed.
Journal ArticleDOI
Improvement of fatigue life of Ti–6Al–4V alloy by laser shock peening
TL;DR: In this paper, the effects of multiple laser peening and laser peak peening intensity on the residual stress, micro-hardness and three-point bending fatigue performance of Ti-6Al-4V alloy were investigated.
Journal ArticleDOI
Underwater and water-assisted laser processing: Part 1—general features, steam cleaning and shock processing
TL;DR: In this article, the advantages and disadvantages of laser processing in the presence of water, light transmission by water, and the two most mature methods of water-assisted laser processing: steam cleaning and shock processing.
References
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Journal ArticleDOI
Laser shock processing : a review of the physics and applications
TL;DR: In this paper, the authors provide an exhaustive account of current trends concerning the physics, the mechanics and the applications involved in laser shock processing (LSP) and present some general and specific data regarding the physical principles of laser shock.
Journal ArticleDOI
Laser shock‐induced microstructural and mechanical property changes in 7075 aluminum
TL;DR: In this paper, stress waves generated by a giant pulsed laser were used to change the in-depth microstructural and mechanical properties of 7075 aluminum, resulting in an increase in yield strength of 30% over unshocked values.
Journal ArticleDOI
Laser generation of high‐amplitude stress waves in materials
B. P. Fairand,A. H. Clauer +1 more
TL;DR: In this paper, the authors investigated the effect of laser-induced stress wave environments generated at a confined surface by a pulsed laser, and showed that the impact of the ionized plasma created near the metal surface on the induced stress wave was negligible.
Proceedings Article
Diffraction-limited, high average power phase-locking of four 30J beams from discrete Nd:glass zig-zag amplifiers
TL;DR: In this article, a single ND:YLF oscillator beam is amplified in four discrete Nd:glass, flashiamp-pumped, zig-zag amplifiers, resulting in near diffraction-limited 120J pulses from a single aperture at up to 1 OHz pulse repetition frequency.