Laser shock peening and its applications: a review

RK Gupta, BK Pant, V Kain, R Kaul… - Lasers in Manufacturing …, 2019‏ - Springer
Abstract In this paper Laser Shock Peening (LSP), as a surface treatment technique for
metals and alloys is reviewed. A brief introduction covering LSP process, LSP on various …

Research and development status of laser peen forming: A review

CJ Yocom, X Zhang, Y Liao - Optics & Laser Technology, 2018‏ - Elsevier
Laser peen forming (LPF) is a non-contact sheet metal forming process, in which a laser-
induced shockwave is utilized to accurately bend, shape, precision-align, adjust, and/or …

Study on the effect of multiple laser shock peening on residual stress and microstructural changes in modified 9Cr-1Mo (P91) steel

AK Rai, R Biswal, RK Gupta, R Singh, SK Rai… - Surface and Coatings …, 2019‏ - Elsevier
This paper presents an experimental study on the effect of laser shock peening (LSP)
parameters on resultant surface residual stress and microstructural evolution in P91 steel …

Effect of laser peening and shot peening on fatigue striations during FCGR study of Ti6Al4V

BK Pant, AHV Pavan, RV Prakash… - International Journal of …, 2016‏ - Elsevier
The fatigue life of steam turbine blades is enhanced by subjecting its fir tree blade root
section to mechanical treatments like shot peening and laser peening to introduce …

Studies on fatigue life enhancement of pre-fatigued spring steel specimens using laser shock peening

P Ganesh, R Sundar, H Kumar, R Kaul… - Materials & Design …, 2014‏ - Elsevier
SAE 9260 spring steel specimens after enduring 50% of their mean fatigue life were
subjected to laser shock peening using an in-house developed 2.5 J/7 ns pulsed …

Importance of microstructure modeling for additively manufactured metal post-process simulations

S Sunny, G Gleason, K Bailey, R Mathews… - International Journal of …, 2021‏ - Elsevier
This work investigates the significance of microstructure-level modeling by simulating the
material response of an inhomogeneous selective laser melted (SLM) Inconel 625 specimen …

Laser shock peening studies on SS316LN plate with various sacrificial layers

P Yella, P Venkateswarlu, RK Buddu… - Applied Surface …, 2018‏ - Elsevier
Laser shock peening (LSP) has been utilized to modify the surface characteristics of
SS316LN plates of 6 mm thickness. Laser pulse widths employed are 30 ps and 7 ns and …

Studies towards development of laser peening technology for martensitic stainless steel and titanium alloys for steam turbine applications

BK Pant, R Sundar, H Kumar, R Kaul… - Materials Science and …, 2013‏ - Elsevier
Fatigue is a major life limiting factor affecting service life of low pressure steam turbine
blades which, depending on turbine rating, are generally made of martensitic stainless steel …

Residual stress distribution, phase transformation, and wettability characteristics of laser peened austenitic stainless steel

K Praveenkumar, S Swaroop… - Journal of Materials …, 2022‏ - Springer
Laser peening without protective coating (LPwC) has been performed on austenitic stainless
steel (SS304) with a power density of 9 GW cm− 2 and peening passes of one, three and …

Microstructure and surface quality of SLM printed miniature helical gear in LSPwC

S Pathak, M Böhm, J Kaufman, J Kopeček… - Surface …, 2023‏ - journals.sagepub.com
The present work describes the influence of underwater laser shock peening without coating
(LSPwC) on selective laser melting manufactured meso-size (outside diameter≤ 10 mm) …