Altering the wetting properties of orthopaedic titanium alloy (Ti–6Al–7Nb) using laser shock peening

Shen, Xiaojun; Shukla, Pratik; Swanson, Philip; An, Zhibin; Prabhakaran, S.; Waugh, David; Nie, Xiangfan; Mee, Christopher; Nakhodchi, Soheil; Lawrence, Jonathan

doi:10.1016/j.jallcom.2019.06.104

Cited by 27 publications

(6 citation statements)

References 44 publications

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“…This process also allowed Shen et al to improve the wettability of the Ti6Al7Nb orthopaedic alloy. 147) Yang et al to increase the resistance of the Ti3Cu alloy to Staphylococcus aureus bacteria 148) as shown in Fig. 9.…”

Section: Titanium Alloysmentioning

confidence: 99%

Surface Severe Plastic Deformation for Improved Mechanical/Corrosion Properties and Further Applications in the Bio-Medical and Hydrogen Sectors

2023

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Various techniques enabling surface severe plastic deformation (SSPD) have been developed or optimised over the past years. This manuscript presents a broad overview of recent developments in the field of SSPD and its application that take advantages of having a deformed gradient surface with both (i) higher strength and (ii) an improved "reactivity". First, the principle and technological advantages/ disadvantages of several SSPD technologies, involving either guided or non-directional mechanical impacts, are recalled. Then, after a short recall on the nature of the structure the modified surface formed under SSPD, the effects of the processing parameters and temperature of deformation on the surface roughness and subsurface microstructure modifications are illustrated with a particular emphasis on the surface mechanical attrition treatment (SMAT) and ultrasonic shot peening (USP) techniques deriving from the traditional pre-strain shot peening. The effect of these surface and sub-surface modifications on the mechanical properties, and in particular the fatigue response, are recalled with a special emphasis on the surface integrity and potential over shot peening. Then, the manuscript concentrates on the effect of the surface enhanced diffusion of chemical species induced by the presence of structural defects to modify the corrosion behaviour and enhance the potential assisted SSPD + thermo-chemically "duplex" treatments. In these cases, in addition to induce grain refinement and dislocations, the importance of controlling some potential surface contamination is stressed. Finally, the manuscript terminates by illustrating some new research studies on potential applications for the challenges in the hydrogen sector for its solid-state storage and the protection of mechanical infrastructures as well as for bio-medical applications with biocompatible Ti-based alloys and biodegradable Mg-based ones.

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Section: Titanium Alloysmentioning

confidence: 99%

Surface Severe Plastic Deformation for Improved Mechanical/Corrosion Properties and Further Applications in the Bio-Medical and Hydrogen Sectors

2023

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“…During the peening process, the moving projectile repeatedly hits the component surface and material surface experiences severe plastic deformation, which eventually leads to strain strengthening. Studies reveal that the SP technique has numerous advantages in terms of fatigue, microstructure, corrosion, mechanical properties, and residual stress distribution [16][17][18][19][20]. For example, Zhang et al [21] indicated that the surface shot peening treatment of AZ80 Mg alloy can inhibit the initiation and propagation of surface cracks, refine grains, induce compressive residual stresses, and produce a surface strain hardening effect.…”

Section: Introductionmentioning

confidence: 99%

Microstructure Evolution and Strengthening Mechanisms of Mg–Steel Welds Subjected to Multiple Microshot Peening Treatment

Wang,

2024

Metals

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A surface modification through multiple microshot peening (MSP) was performed on Mg–steel weldment. Application of MSP was found beneficial to the elimination of surface microdefects owing to severe plastic deformation induced by MSP. Moreover, MSP treatment transformed the residual tensile stress of the weld surface into residual compressive stress, which was beneficial to inhibit the initiation and propagation of surface microdefects. Strain strengthening and grain refining were introduced into the shot peened joint, resulting in the notable increase in surface hardness and tensile strength. Compared with an untreated joint, the tensile strength of optimized Mg/steel weldment was markedly enhanced and raised 28% to 244 MPa, and fracture ultimately occurred in the Mg alloy base material. Moreover, the refinement of weld grain induced by MSP treatment was beneficial to strengthen the stress corrosion sensitivity of Mg/steel joints, while also promoting the formation of a denser Mg(OH)2 passivation film on the weld surface and enhancing the corrosion resistance of the joints.

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“…In recent years, laser shock peening (LSP) has attracted significant attention as a novel technique for surface modification of metallic materials and alloys [2][3][4] and is now widely used for fabricating advanced devices in aerospace [5], nuclear power [6], and biomedical applications [7,8]. LSP utilizes the impact wave effect generated by laser-induced plasma, thereby inducing a series of unique surface strengthening effects [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Surface Morphology Analysis of Laser Shock Peened 20CrMnTi Steel: A Statistical Evaluation

Wu,

Zhang,

Wang

2023

Metals

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Surface morphology impacts material performance and durability significantly. To gain a deeper understanding of the impact of laser shock peening (LSP) treatment on the surface morphology of materials and to explore more optimized LSP treatment strategies, this study presents an investigation into the surface morphology of 20CrMnTi steel following LSP treatment. Through the application of statistical analysis, the study examines the induced surface morphology variations resulting from both single-point repetitive LSP and multiple LSP treatments. Experimental results demonstrate significant alterations in surface roughness and peak height distribution after LSP treatments, accompanied by the presence of high amplitude compressive residual stress (CRS). Moreover, the depth of laser-induced indentations is found to be closely related to the number of impacts, and the incidence angle of the laser exhibits a discernible influence on the directional texture and periodicity of the impacted surfaces. This investigation also proposes a method for estimating surface morphology variations after LSP treatment by means of analysis of impact patterns, thereby offering the potential for enhancing the friction and wear performance of the impacted surfaces through the adjustment of the impact region position during multi-layer LSP treatment.

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Altering the wetting properties of orthopaedic titanium alloy (Ti–6Al–7Nb) using laser shock peening

Cited by 27 publications

References 44 publications

Surface Severe Plastic Deformation for Improved Mechanical/Corrosion Properties and Further Applications in the Bio-Medical and Hydrogen Sectors

Surface Severe Plastic Deformation for Improved Mechanical/Corrosion Properties and Further Applications in the Bio-Medical and Hydrogen Sectors

Microstructure Evolution and Strengthening Mechanisms of Mg–Steel Welds Subjected to Multiple Microshot Peening Treatment

Surface Morphology Analysis of Laser Shock Peened 20CrMnTi Steel: A Statistical Evaluation

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