Enhancement of abrasion and corrosion resistance of duplex stainless steel by laser shock peening

Lim, Hyuntaeck; Kim, Pilkyu; Jeong, Hoemin; Jeong, Sungho

doi:10.1016/j.jmatprotec.2012.01.023

Cited by 124 publications

(51 citation statements)

References 18 publications

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“…Laser peening can improve the mechanical strength and introduce a micropattern into the biomedical implant materials such as stainless steel, 31 Ti. 20,32 The microhardness, compressive residual stress, and microstructure introduced by laser peening created plastic deformation on the implant surface and has higher union capability with joining biomaterial (PMMA used in our study) than nontreated implants.…”

mentioning

confidence: 99%

“…The biomedical performance of the patterned surface created by laser peening has higher cell attachment than nontreated titanium implants. An enhancement of the abrasion and corrosion resistance of stainless steel implant surface is possible with the application of laser peening as found by Lim et al 31 The limitation of the study was that the area topography scan was conducted using confocal laser microscope on only one control and peen-treated samples to evaluate the topographical differences between the samples. The reason for not using the multiple samples was that laser peen-treated samples create distinct circular textures, which are not present in control samples.…”

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confidence: 99%

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Peen treatment on a titanium implant: effect of roughness, osteoblast cell functions, and bonding with bone cement

Khandaker¹,

Riahinezhad²,

Sultana³

et al. 2016

IJN

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Implant failure due to poor integration of the implant with the surrounding biomaterial is a common problem in various orthopedic and orthodontic surgeries. Implant fixation mostly depends upon the implant surface topography. Micron to nanosize circular-shaped groove architecture with adequate surface roughness can enhance the mechanical interlock and osseointegration of an implant with the host tissue and solve its poor fixation problem. Such groove architecture can be created on a titanium (Ti) alloy implant by laser peening treatment. Laser peening produces deep, residual compressive stresses in the surfaces of metal parts, delivering increased fatigue life and damage tolerance. The scientific novelty of this study is the controlled deposition of circular-shaped rough spot groove using laser peening technique and understanding the effect of the treatment techniques for improving the implant surface properties. The hypothesis of this study was that implant surface grooves created by controlled laser peen treatment can improve the mechanical and biological responses of the implant with the adjoining biomaterial. The objective of this study was to measure how the controlled laser-peened groove architecture on Ti influences its osteoblast cell functions and bonding strength with bone cement. This study determined the surface roughness and morphology of the peen-treated Ti. In addition, this study compared the osteoblast cell functions (adhesion, proliferation, and differentiation) between control and peen-treated Ti samples. Finally, this study measured the fracture strength between each kind of Ti samples and bone cement under static loading. This study found that laser peen treatment on Ti significantly changed the surface architecture of the Ti, which led to enhanced osteoblast cell adhesion and differentiation on Ti implants and fracture strength of Ti–bone cement interfaces compared with values of untreated Ti samples. Therefore, the laser peen treatment method has the potential to improve the biomechanical functions of Ti implants.

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mentioning

confidence: 99%

Peen treatment on a titanium implant: effect of roughness, osteoblast cell functions, and bonding with bone cement

Khandaker¹,

Riahinezhad²,

Sultana³

et al. 2016

IJN

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“…Therefore, surface properties such as hardness must be improved using appropriate techniques. Mechanical surface treatments such as ultrasonic shot peening, 3,4 laser shock peening, 5,6 burnishing 7,8 and deep rolling 9,10 are appropriate methods for surface grain refinement, resulting in improvement of surface hardness and other properties of austenitic stainless steels. Among them, deep rolling is a well-known method for increase of surface regions hardness with a thick affected depth.…”

Section: Introductionmentioning

confidence: 99%

Formation of Surface Nano/Ultrafine Structure using Deep Rolling Process on the AISI 316L Stainless Steel

Tadi¹

2017

MSEIJ

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In the present work, effect of deep cold rolling process known as deep rolling on near-surface microstructure and hardness of an austenitic stainless steel has been evaluated. Deep rolling process using a ball-point device was carried out on the barshaped AISI 316L stainless steel specimens. The process was performed at 15 and 26 passes with 0.2mm/s longitudinal rate and 22.4rpm bar rotation. Microstructure and hardness were investigated by feritscope, X-ray diffract meter, field emission scanning electron microscope and Vickers¬ micro-indenter at 0.1kgf. A composite microstructure, consisting of ultrafine and nano grains (200nm and 70nm), mechanical twins and strain-induced marten site, was observed in the near-surface regions. Surface hardness was increased from 210 to 450 and 500HV0.1 after 15 and 26 passes, respectively.

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“…Laser-induced plasma shock waves produce residual compressive stress causing plastic deformation in the target [4]. The LSP can improve metal properties such as surface hardness, abrasion durability, corrosion resistance, and fatigue strength [1][2][3][4][5][6]. In general, the conventional laser beam shape is close to circular.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Square Beam Energy Efficiency of a Homogenizer Near the Target for Laser Shock Peening

Kim

Hwang

Hong

et al. 2016

Journal of the Optical Society of Korea

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We analyzed through numerical simulations the properties of a square beam homogenizer near the target for laser shock peening. The efficiency was calculated near the target by considering the plasma threshold of the metals. We defined the depth of focus of the square beam homogenizer with a given efficiency near the target. Then, we found the relationship between the depth of focus for the laser shock peening and four main parameters of the square beam homogenizer: the plasma threshold of the metal, the number of lenslets in the array-lens, the focal length of the condenser lens and the input beam size.

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Enhancement of abrasion and corrosion resistance of duplex stainless steel by laser shock peening

Cited by 124 publications

References 18 publications

Peen treatment on a titanium implant: effect of roughness, osteoblast cell functions, and bonding with bone cement

Peen treatment on a titanium implant: effect of roughness, osteoblast cell functions, and bonding with bone cement

Formation of Surface Nano/Ultrafine Structure using Deep Rolling Process on the AISI 316L Stainless Steel

Analysis of the Square Beam Energy Efficiency of a Homogenizer Near the Target for Laser Shock Peening

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