Effect of micro shot peening on the mechanical properties and corrosion behavior of two microstructure Ti–6Al–4V alloy

Ahmed, Aymen A.; Mhaede, Mansour; Wollmann, Manfred; Wagner, Lothar

doi:10.1016/j.apsusc.2015.12.019

Cited by 70 publications

(47 citation statements)

References 34 publications

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“…Shot peening (SP) has been widely utilised to increase the fatigue strength of metal alloys [1,2] and applied as a mechanical surface treatment to improve the surface properties of biomaterials [2]. SP is generally used owing to its capability to treat complex shaped components [3].…”

Section: Introductionmentioning

confidence: 99%

Dry Sliding Wear Behaviour of Shot Peened TI6AL4V Alloys at Different Peening Times

et al. 2018

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Titanium alloys have been extensively used in biomedical and aerospace applications, where the fatigue life and tribological behaviour are important. Shot peening is a cold working mechanical surface treatment and has been widely used to improve specifically the fatigue life of titanium alloys for the last decades. In this study, the effect of shot peening on the dry sliding wear behaviour of Ti6Al4V alloy was investigated. Moreover, the influences of peening time on the surface topography and the dry sliding wear behaviour of Ti6Al4V alloy were discussed. Ball-on-disc tests were carried out to investigate tribological behaviour and a 3D optical profilometer used to investigate the volume loss, the areal surface roughness, and the 3D surface topographies of shot peened Ti6Al4V alloy before and after wear tests. The areal surface roughness values increased with increasing peening time while dry sliding behaviour did not alter. The 3D surface roughness measurements of the peened and the worn specimens revealed the topographical variations of the specimens.

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Section: Introductionmentioning

confidence: 99%

Dry Sliding Wear Behaviour of Shot Peened TI6AL4V Alloys at Different Peening Times

et al. 2018

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“…The studies [18] confirm that the increase of working pressure at constant grain size leads to roughness increase and roughness profile created in such circumstances is linearly proportional to the velocity of impact intensity [10,19].…”

Section: Morphology and Geometrical Structure Of Surfacementioning

confidence: 60%

“…It is evaluated as neutral in view of biocompatibility. In the opinion of Ahmed et al [10] the value of corrosion resistance of processed alloys is higher in case of smaller size of shot. It should be reminded that in presented studies the diameter of ceramic beads is more than two times smaller than the diameter of steel shot.…”

Section: Corrosion Behaviourmentioning

confidence: 93%

“…In such case, under the influence of variable external load and corrosive impact of body fluids environment, they can constitute the areas of micro-cracks development situated in surface layer and consequently reducing strength parameters of the whole implant. As described in source literature [9,10,18] Sa -arithmetic average of surface roughness is usually used for the evaluation of surfaces subjected to shot peening process as the most representative parameter for surfaces after shot peening. In the present study, Sp and Sv roughness parameters have been additionally subjected to analysis i.e.…”

Section: Morphology and Geometrical Structure Of Surfacementioning

confidence: 99%

“…Therefore, shot peening process is particularly recommended for such type of products. The shot peening process leads to increased strength of metallic elements as a result of strengthening of the surface layer [10]. At the moment, there are no detailed technological guidelines for such for medical products produced in AM processes i.e.…”

Section: Introductionmentioning

confidence: 99%

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The effect of shot peening on the corrosion behaviour of Ti-6Al-4V alloy made by DMLS

Żebrowski

Walczak

2018

Advances in Materials Science

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Additive Manufacturing processes are being used increasingly in the scope of medicine and dentistry. As indicated by literature data, the durability and quality of medical implants is decisively influenced by surface modification. Insufficient quality of surface finishing leads, among others, to reduced service life of applied implants and to increased number of necessary revision surgeries. Furthermore, various types of finishing processes e.g. cleaning, shot peening or abrasive techniques are suggested by the manufacturers of products made by means of DMLS processes. Due to this fact, the analysis of proper formation of the surface layer of titanium products made by means of the method consisting in the direct laser sintering of metal powders (DMLS) was the subject matter of our research. Therefore, Ti-6Al-4V titanium alloy has been used for tests. The samples have been produced by means of EOSINT M280 system dedicated for laser sintering of metal powders. The surfaces of prepared samples have been subjected to shot peening process at three different values of working pressure (0.2, 0.3 and 0.4 MPa) by means of three different working media i.e. CrNi steel shot, crushed nut shells and ceramic balls. The characteristics of the materials used for shot peening process have been determined by means of Zeiss Ultra Plus scanning electron microscope. The samples have been subjected to profilometric measurements on Bruker Contour GT optical profilometer and the corrosion behaviour of Ti-6Al-4V titanium alloy in Ringer solution has been determined in electrode impedance spectroscopy (EIS) measurements by means of Atlas 0531 set dedicated for corrosion testing. The overall results of all tests indicate to favourable influence of the shot peening process on the corrosion behaviour of titanium alloy.

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Enhancing the Structural Performance of Lightweight Metals by Shot Peening

Bagherifard

2019

Adv Eng Mater

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Lightweight metals and metal alloys provide the opportunity to fulfill the exigent weight‐saving requirements for structural components. Mechanical surface treatments, in particular, shot peening and other varieties of impact‐based surface treatments are found to be able to significantly promote the structural application of lightweight metals through enhancing their mechanical performance. Moreover, these treatments have substantiated a notable prospect to modulate the surface–environment interaction of the treated material, bringing in original functionalities in multiple fields of application. Herein, the current state‐of‐the‐art in the implementation of shot peening‐based surface treatments is reviewed regarding lightweight metallic materials. The recent advancements are described focusing on the foremost characteristics of the major lightweight metals commonly used in aerospace, automotive, and biomedical sectors. Emergent applications and the existing challenges are highlighted. Lastly, future perspectives on tailoring the effects of shot peening‐based mechanical surface treatments to boost the appeal of lightweight metals as structural components are provided.

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Effect of micro shot peening on the mechanical properties and corrosion behavior of two microstructure Ti–6Al–4V alloy

Cited by 70 publications

References 34 publications

Dry Sliding Wear Behaviour of Shot Peened TI6AL4V Alloys at Different Peening Times

Dry Sliding Wear Behaviour of Shot Peened TI6AL4V Alloys at Different Peening Times

The effect of shot peening on the corrosion behaviour of Ti-6Al-4V alloy made by DMLS

Enhancing the Structural Performance of Lightweight Metals by Shot Peening

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