Microstructure and wear resistance of compositionally graded Ti Al intermetallic coating on Ti6Al4V alloy fabricated by laser powder deposition

Liu, Yang; Liu, Wensheng; Ma, Yunzhu; Liang, Chaoping; Liu, Chao; Zhang, Cheng; Cai, Qingshan

doi:10.1016/j.surfcoat.2018.08.067

Cited by 31 publications

(12 citation statements)

References 40 publications

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“…These phases enhanced the micro-hardness of the graded coating and consequently improved its wear resistance behaviour. The average friction coefficient and the wear rate of the graded TiÀ Al intermetallic coating were 0.3704 · 10 À 4 mm 3 /Nm and 1.989 · 10 À 4 mm 3 / Nm, respectively, which were significantly lower than those of the substrate (0.5667 · 10 À 4 mm 3 /Nm and 8.384 · 10 À 4 mm 3 /Nm) [6].…”

Section: Introductionmentioning

confidence: 82%

“…Also, the poor wear property of Ti6Al4V limits its application in body-to-body contacts. Given this, it therefore becomes necessary to improve the wear property even with the associated cost of the material, so that Ti6Al4V can also perform reasonably and acceptably in applications of body-to-body contacts [3,5,6]. Laser metal deposition (LMD) approach has been considered in this study to improve the wear property of Ti6Al4V.…”

Section: Introductionmentioning

confidence: 99%

“…Laser metal deposition (LMD) approach has been considered in this study to improve the wear property of Ti6Al4V. This technique creates intricate components directly from a three dimensional computer aided design model through a layer-by-layer approach [1,[3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been conducted with the aim of improving the wear property of Ti6Al4V and in particular using laser metal deposition approach, laser cladding, and using titanium carbide (TiC) as a reinforcement material [3][4][5][6][7][8]. In an initial investigation about characterised laser metal deposited titanium alloy grade 5 and molybdenum composite, different percentages of titanium and molybdenum were employed in the deposition.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of wear resistance behaviour of laser metal deposited Ti6Al4V/Mo composites

Akinlabi

Kumpaty

Fatoba

et al. 2019

Materialwissenschaft Werkst

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Titanium and its alloys are materials found to exhibit wonderful properties such as its lightweight and, excellent mechanical properties – tensile strength and toughness even at elevated temperatures, extraordinary corrosion resistance behaviour and ability to withstand high temperatures. These unique properties have made Ti6Al4V attractive for a range of industrial applications. Some of the successful applications include medical implants and prosthesis, connecting rods for automotive, aerospace, oil and gas, sports equipment, gas turbine engines and space crafts. However, the high cost and poor wear resistance of Ti6Al4V limits its use for specific applications. This study investigates the wear resistance of the laser deposited Ti6Al4V composite and its enhancement with molybdenum. In this study, the Ti6Al4V/Mo composites were produced, the effect of influencing process parameter was investigated, and the produced Ti6Al4V‐Mo composites were further examined through various tests. The results revealed that the Ti6Al4V/Mo composite produced at varying laser powers had improved wear resistant when compared to the Ti6Al4V substrate. A direct correlation between the wear resistance and hardness was also observed.

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Section: Introductionmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improvement of wear resistance behaviour of laser metal deposited Ti6Al4V/Mo composites

Akinlabi

Kumpaty

Fatoba

et al. 2019

Materialwissenschaft Werkst

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show abstract

“…Low hardness values and poor tribological characteristics of metallic implant materials can be improved by laser powder deposition [18]. Comparing the Ti-6Al-4V substrate characteristics with the characteristics of the Ti-Al intermetallic coating formed on the Ti-6Al-4V alloy surface ( Figure 6), Liu et al [20] noticed that intermetallic coating displays lower friction coefficients due to the higher hardness values since the biometallics hardness and wear resistance are greatly influenced by each other [17][18][19][20].…”

Section: Laser Effect On the Implant Tribo-mechanical Propertiesmentioning

confidence: 99%

Laser surface modification of metallic implant materials

et al. 2019

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Metallic biomaterials are most commonly used as hard-tissue replacements because of their favorable mechanical features and excellent biocompatibility. The objective of this paper is to present an overview of diverse surface modification techniques, with a special emphasis on the laser surface modification method, as well as diverse characterization techniques used for investigating the impact of the surface modification process on metallic implant materials' properties. Moreover, the effect of laser radiation on the surface its and mechanical characteristics, as well as on the structure of metallic bioimplants, is presented. The study of influence of high-intensity laser radiation on metallic materials' surface includes primarily investigations of the surface morphology modifications and specific surface structure formation since their presence enables enhanced osseointegration.

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