Laser surface alloying of molybdenum on aluminum for enhanced wear resistance

Rajamure, Ravi Shanker; Vora, Hitesh D.; Gupta, Niraj; Karewar, Shivraj; Srinivasan, S.; Dahotre, Narendra B.

doi:10.1016/j.surfcoat.2014.08.074

Cited by 42 publications

(13 citation statements)

References 24 publications

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“…Laser cladding enables the formation of the protective coating on the alloy substrate surface. Also, laser alloying, laser heattreatment, and laser overlaying are methods which can be used in order to enhance the implant material hardness, wear, and corrosion resistance [19].…”

Section: Laser Effect On the Implant Tribo-mechanical Propertiesmentioning

confidence: 99%

“…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%

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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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Section: Laser Effect On the Implant Tribo-mechanical Propertiesmentioning

confidence: 99%

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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“…A laser surface alloying technique with FeCrMoMnWCB powder (Nano steel SHS717) in the aluminum alloy (A97075) was attempted in [19,20]. In the same way, the same techniques were reported in [21], with WC, CO, and NiCr (in 70:15:15 ratio) using a 5 kW continuous wave (CW) Nd:YAG laser with a beam diameter of 3 mm. As one of the recent technologies in surface engineering and improved microstructure and mechanical properties, a high power CO 2 laser was used to disperse tungsten carbide (WC) ceramic powder in the surface treated Al-Si-Cu cast aluminum alloy [22,23].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Al-CuMgMn Alloy Developed by Laser Beam Surface Modification for Wear Resistance

Tolcha

Jiru

Lemu

2021

Metals

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Laser surface alloying is one of the recent technologies used in the manufacturing sector for improving the surface properties of metals. Aluminum alloys are key materials in the manufacturing sector. This favors their high demand in many industries. In this study investigation, the surface alloying of pure aluminum was conducted using a CO2 laser. Four types of alloying powders were used with a 2:1:1 combination of copper, magnesium, and manganese. The hardness of the alloyed zones of Al-CuMgMn increased by 2 to 7 times at a 1.7 kW processing laser power. To assess the rate of wear for the alloyed samples, a modified Lancaster wear coefficient was considered. When the pin-on-disc wear test at 10 N and 20 N loads was analyzed with different sliding speeds, a reduction in wear by 30–50% appeared due to surface alloying. The result shows good insight into the wear behavior. In the same way, microstructure and surface morphology studies displayed a good metallurgical bonding without defects. In a statistical sense, the friction and wear behavior matched with an asperity-based model. The experimental results revealed that laser surface alloy has more wear resistance.

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“…[14][15][16][17][18] Among the metallic reinforcements, Mo has very low solubility in Al and results in higher hardness, wear resistance, and corrosion resistance compared to Al alloys. [19][20][21][22][23] The uniform distribution of elemental Mo particles in Al 6082 matrix leads to enhanced tensile properties without reducing the ductility. [21] The corrosion resistance is increased with the addition of Mo particles and increased number of processing passes for Al-Mo surface composites fabricated by FSP groove method.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of Aluminum Surface Composites with Metallic, Ceramic, and Hybrid Reinforcements Using Friction Stir Processing

Mahesh

Gumaste

Meena

et al. 2020

Metall Mater Trans B

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The study focuses on the effect of mono and combined addition of metallic and ceramic reinforcement particles on the microstructural and corrosion behavior of surface composites fabricated by friction stir processing. Molybdenum, possessing higher corrosion resistance compared to aluminum, is used as the metallic reinforcement, and boron carbide is used as ceramic reinforcement. Combined addition of boron carbide and molybdenum is used to study the effect of hybrid reinforcement on the corrosion behavior of Al 1050 surface composites. The effect of friction stir processing and reinforcement type on the electrochemical behavior of surface composites is analyzed through potentiodynamic polarization and impedance analysis. Reinforcement particles distributed on the Al matrix through friction stir processing affect the pitting corrosion behavior of surface composites. Post-corrosion microscopy analysis is carried out to understand the effect of the reinforcement particles on the pitting corrosion. The surface composites fabricated are free from any intermetallics. Surface composites with second processing pass showed better corrosion resistance due to more homogeneously distributed finer Mo particles in Al-Mo surface composites. Mono-reinforced surface composites exhibited an increase in the corrosion resistance, whereas the combined addition of reinforcements induced more galvanic effect in the surface composite leading to more severe corrosion.

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Laser surface alloying of molybdenum on aluminum for enhanced wear resistance

Cited by 42 publications

References 24 publications

Laser surface modification of metallic implant materials

Laser surface modification of metallic implant materials

Experimental Investigation of Al-CuMgMn Alloy Developed by Laser Beam Surface Modification for Wear Resistance

Corrosion Behavior of Aluminum Surface Composites with Metallic, Ceramic, and Hybrid Reinforcements Using Friction Stir Processing

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