Surface modifications induced in 316L steel by laser peening and shot-peening. Influence on pitting corrosion resistance

Peyre, P.; Scherpereel, Xavier; Berthe, Laurent; Carboni, Christelle; Fabbro, R.; Béranger, G.; Lemaître, C.

doi:10.1016/s0921-5093(99)00698-x

Cited by 321 publications

(132 citation statements)

References 11 publications

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“…Kleber et al [25] measured the content of martensite induced by shot peening, as a function of depth from the surface, using magnetic Barkhausen noise, while Peyre et al [26] quantified the amount of martensite induced by both conventional shot peening and also laser peening in order to correlate it with the pitting corrosion resistance. In the present work, the relationship between microstructural changes induced by shot peening and fatigue behaviour of the metastable steel was studied.…”

Section: Introductionmentioning

confidence: 99%

Effect of shot peening on metastable austenitic stainless steels

Fargas

Roa

Mateo

2015

Materials Science and Engineering: A

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In this work, shot peening was performed in a metastable austenitic stainless steel EN 1.4318 (AISI 301LN) in order to evaluate its effect on austenite to martensite phase transformation and also the influence on the fatigue limit. Two different steel conditions were considered: annealed, i.e., with a fully austenitic microstructure, and cold rolled, consisting of a mixture of austenite and martensite. X-ray diffraction, electron backscattered diffraction and focus ion beam, as well as nanoindentation techniques, were used to elucidate deformation mechanisms activated during shot peening and correlate with fatigue response. Results pointed out that extensive plastic deformation and phase transformation developed in annealed specimens as a consequence of shot peening.However, the increase of roughness and the generation of microcracks led to a limited fatigue limit improvement. In contrast, shot peened cold rolled specimens exhibited enhanced fatigue limit. In the latter case, the main factor that determined the influence on the fatigue response was the distance from the injector, followed successively by the exit speed of the shots and the coverage factor.

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Section: Introductionmentioning

confidence: 99%

Effect of shot peening on metastable austenitic stainless steels

Fargas

Roa

Mateo

2015

Materials Science and Engineering: A

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“…Initially, LSP was developed for the aeronautic industry as the method for the improvement of resistance to fatigue cracking [3][4][5],…”

Section: Introductionmentioning

confidence: 99%

Laser shock peening without absorbent coating (LSPwC) effect on 3D surface topography and mechanical properties of 6082-T651 Al alloy

Trdan

Porro

Ocaña

et al. 2012

Surface and Coatings Technology

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The influence of nanosecond laser pulses applied by laser shock peening without absorbent coating (LSPwC) with a Q-switched Nd:YAG laser operating at a wavelength of \ = 1064 nm on 6082-T651 Al alloy has been investigated. The first portion of the present study assesses laser shock peening effect at two pulse densities on three-dimensional (3D) surface topography characteristics. In the second part of the study, the peening effect on surface texture orientation and micro-structure modification, i.e. the effect of surface craters due to plasma and shock waves, were investigated in both longitudinal (L) and transverse (T) directions of the laser-beam movement. In the final portion of the study, the changes of mechanical properties were evaluated with a residual stress profile and Vickers micro-hardness through depth variation in the near surface layer, whereas factorial design with a response surface methodology (RSM) was applied. The surface topographic and micro-structural effect of laser shock peening were characterised with optical microscopy, InfiniteFocus® microscopy and scanning electron microscopy (SEM). Residual stress evaluation based on a hole-drilling integral method confirmed higher compression at the near surface layer (33 um) in the transverse direction (Omin) of laser-beam movement, i.e. -407 ±81 MPa and -346 ± 124 MPa, after 900 and 2500 pulses/cm 2 , respectively. Moreover, RSM analysis of micro-hardness through depth distribution confirmed an increase at both pulse densities, whereas LSPwC-generated shock waves showed the impact effect of up to 800 um below the surface. Furthermore, ANOVA results confirmed the insignificant influence of LSPwC treatment direction on micro-hardness distribution indicating essentially homogeneous conditions, in both I and T directions.

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“…The main purpose of the shot-peened layer is to provide compressive stress on the surface to mitigate the initiation of fatigue cracks. In addition, the beneficial effect of compressive stress on localized corrosion is reported by Liu et al 16 and Peyre et al 17 The surface condition of shot-peened carbon steel affects the formation and adhesion of the ZnP layer and the organic coatings. Zinc phosphate crystals protect the metal surface from corrosion and provide a suitable interface for bonding with top coatings.…”

Section: Coating and Coating Damage Caused Corrosion And Cracking Of mentioning

confidence: 88%

An Industrial Perspective on Environmentally Assisted Cracking of Some Commercially Used Carbon Steels and Corrosion-Resistant Alloys

Ashida¹,

Daigo

Sugahara

2017

JOM

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Commercial metals and alloys like carbon steels, stainless steels, and nickelbased super alloys frequently encounter the problem of environmentally assisted cracking (EAC) and resulting failure in engineering components. This article aims to provide a perspective on three critical industrial applications having EAC issues: (1) corrosion and cracking of carbon steels in automotive applications, (2) EAC of iron-and nickel-based alloys in salt production and processing, and (3) EAC of iron-and nickel-based alloys in supercritical water. The review focuses on current industrial-level understanding with respect to corrosion fatigue, hydrogen-assisted cracking, or stress corrosion cracking, as well as the dominant factors affecting crack initiation and propagation. Furthermore, some ongoing industrial studies and directions of future research are also discussed.

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Surface modifications induced in 316L steel by laser peening and shot-peening. Influence on pitting corrosion resistance

Cited by 321 publications

References 11 publications

Effect of shot peening on metastable austenitic stainless steels

Effect of shot peening on metastable austenitic stainless steels

Laser shock peening without absorbent coating (LSPwC) effect on 3D surface topography and mechanical properties of 6082-T651 Al alloy

An Industrial Perspective on Environmentally Assisted Cracking of Some Commercially Used Carbon Steels and Corrosion-Resistant Alloys

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