Imparting increased corrosion passive and bio-active character to Al2O3 based ceramic coating on AZ91 alloy

Kumar, Sanjeet; Singh, Harprabhjot; Gaur, N K; Patil, Smita; Kumar, Deepak; Singh, Neetu

doi:10.1016/j.surfcoat.2019.125231

Cited by 13 publications

(2 citation statements)

References 33 publications

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“…11,12 It has vast potential in biomedical and tribological applications, too. 11,21,24,25 Mg embedded with CeO 2 and MgO nanoparticles shows the increase in microhardness, dimensional stability, damping capacity, ignition resistance, compressive strengths and ductility. 11,12,26 The present study is an attempt to explore the possibility for in-situ generation of CeO 2 and MgO particles in Mg-matrix through the simple gravity stir casting process.…”

Section: Introductionmentioning

confidence: 99%

Development of magnesium-based hybrid metal matrix composite through in situ micro, nano reinforcements

Singh

Kumar

Singh

2020

Journal of Composite Materials

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Present work aims at developing Magnesium based metal matrix composite (MMC) through in-situ reaction. In-situ generation of micro and nano particles in the Mg-melt is supposed to have a better bonding with the matrix. Ceric ammonium nitrate (CAN) is added to initial Magnesium melt (with an aim to generate CeO2 and MgO through in-situ reaction) at temperatures of 670 °C and 870 °C. The developed MMCs are solution treated to get rid of intermetallic. The nature of particles is explored with X-ray diffraction (XRD) and Energy dispersion spectroscopy (EDS). The morphology and sizes of particles are keenly jotted using scanning electron microscope (SEM). Mechanical responses of developed MMCs are recorded through Hardness, Compression and scratch tests. The compression fractured surfaces are analyzed with SEM and scratched samples are analyzed on 3 D optical profilometer to explore deformation behavior. The observations indicate the in-situ formation of CeO2, MgO and CeMg12 intermetallic phases in different types and sizes. Further, these particles are responsible for improved mechanical properties. The findings are supported by the contribution of different strengthening mechanisms.

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Section: Introductionmentioning

confidence: 99%

Development of magnesium-based hybrid metal matrix composite through in situ micro, nano reinforcements

Singh

Kumar

Singh

2020

Journal of Composite Materials

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“…Driven by this demand, surface engineering technology has been developed and improved by leaps and bounds. Ceramic coating deposited on the metal substrate with good strength and toughness can organically combine the high toughness and shaping of metal materials with the wear resistance, corrosion resistance and heat resistance of the ceramic coating, giving full play to the comprehensive advantages of the two materials [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Tribological Behaviors of as-sprayed Al2O3 Coatings With the Effects of MoS2 Lubricant and External Loads

Deng

Tang

et al. 2020

Preprint

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The Al2O3-MoS2 ceramic-based lubricating coating was prepared via introducing MoS2 dry film lubricant into the pores and cracks of thermal-sprayed Al2O3 coating by facial paint spraying method. The microstructure, mechanical properties and tribological behaviors of the as-received Al2O3-MoS2 coating were thoroughly evaluated. The results illustrated that MoS2 was mainly concentrated on the shallow surface of the Al2O3 coating, and thus more uniform, more compact and smoother Al2O3-MoS2 coating was obtained. Meanwhile, the mechanical properties of the Al2O3 coating did not change significantly after the introduction of MoS2. The tribological experiments illustrated that compared with the Al2O3 coating, the friction coefficient and specific wear rate of the Al2O3-MoS2 coating under different loads were greatly reduced due to the generation of the lubricating layer. Especially under the load of 5 N, the friction coefficient was as low as 0.36, and the wear rate (1.49×10-5 mm3×(N×m)-1) was almost 17 times lower than that of Al2O3 coating (2.53×10-4 mm3×(N×m)-1). This research established a new and simple way to prepare ceramic-based self-lubricating coatings by using temperature-sensitive solid lubricants.

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Fabrication of Polyamide6/Polyaniline as an Effective Nano-web Membrane for Removal of Cr (VI) from Water and a Black Box Approach in Modeling of Adsorption Process

Nabavi,

Seyednezhad,

Shakiba

2023

Environ Sci Pollut Res

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Imparting increased corrosion passive and bio-active character to Al2O3 based ceramic coating on AZ91 alloy

Cited by 13 publications

References 33 publications

Development of magnesium-based hybrid metal matrix composite through in situ micro, nano reinforcements

Development of magnesium-based hybrid metal matrix composite through in situ micro, nano reinforcements

Investigation on the Tribological Behaviors of as-sprayed Al2O3 Coatings With the Effects of MoS2 Lubricant and External Loads

Fabrication of Polyamide6/Polyaniline as an Effective Nano-web Membrane for Removal of Cr (VI) from Water and a Black Box Approach in Modeling of Adsorption Process

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Imparting increased corrosion passive and bio-active character to Al2O3 based ceramic coating on AZ91 alloy

Cited by 13 publications

References 33 publications

Development of magnesium-based hybrid metal matrix composite through in situ micro, nano reinforcements

Development of magnesium-based hybrid metal matrix composite through in situ micro, nano reinforcements

Investigation on the Tribological Behaviors of as-sprayed Al2O3&nbsp;Coatings With the Effects of MoS2&nbsp;Lubricant and External Loads

Fabrication of Polyamide6/Polyaniline as an Effective Nano-web Membrane for Removal of Cr (VI) from Water and a Black Box Approach in Modeling of Adsorption Process

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Investigation on the Tribological Behaviors of as-sprayed Al2O3 Coatings With the Effects of MoS2 Lubricant and External Loads