Synthesis and properties of hydroxyapatite-containing coating on AZ31 magnesium alloy by micro-arc oxidation

Tang, Hui; Han, Yu; Tang, Wu; Tao, Wei; Jian, Xian; Wu, Yunfeng; Xu, Fengyu

doi:10.1016/j.apsusc.2016.12.216

Cited by 96 publications

(35 citation statements)

References 45 publications

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“…The bonding strength of the coatings was evaluated in an adhesion‐tension test according to ASTM‐C633 standard . The average bonding strength of the 5 samples was acquired by treating all the specimens under the same conditions.…”

Section: Manufacturing and Methodsmentioning

confidence: 99%

“…The bonding strength of the coatings was evaluated in an adhesion-tension test according to ASTM-C633 standard. 19 The average bonding strength of the 5 samples was acquired by treating all the specimens under the same conditions. It is worth noticing that the coatings on 1 side of the samples were removed, and the exposed Ti alloy surface was then roughened.…”

Section: Methodsmentioning

confidence: 99%

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High‐performance infrared emissivity of micro‐arc oxidation coatings formed on titanium alloy for aerospace applications

Tang

Tao

Wang

et al. 2018

Int J Applied Ceramic Tech

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Aerospace vehicles are subjected to high temperatures because of surrounding aerodynamic drag and the formation of large temperature gradients across the external structural parts of their airframe. To protect the vehicles, high‐infrared emissivity coatings that can radiate a large amount of heat into outer space are in demand. In this work, we describe the development and characterization of high emissivity ceramic coatings formed on a TC4 alloy surface by micro‐arc oxidation. We evaluate, in particular, the influence of NiSO4 concentration on current‐time response, the thickness, surface roughness, morphologies, bonding strength, and emissivity of these coatings. The results indicate that by increasing the NiSO4 concentration in electrolytes, the thickness and surface roughness of the coatings increase. The bonding strength becomes smaller with increasing concentration of NiSO4, but is still maintains a value higher 30 MPa. The coatings possess good thermal shock resistance after being subjected to severe thermal shocks for 50 cycles, and no peeling of the coating is observed. A higher concentration of NiSO4 in electrolytes also leads to an increasing percentage of the nickel components in the coating to form a NiO phase, which enhances the emissivity of the coatings in the wavelength range of 3‐8 μm.

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Section: Manufacturing and Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

High‐performance infrared emissivity of micro‐arc oxidation coatings formed on titanium alloy for aerospace applications

Tang

Tao

Wang

et al. 2018

Int J Applied Ceramic Tech

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“…Magnesium alloys have drawn extensive attention as biodegradable orthopedic implant materials in recent years. Magnesium alloys possess low specic density (1.74-1.84 g cm À3 ) and Young's modulus (41)(42)(43)(44)(45) close to those of natural bone tissues (1.8-2.1 g cm À3 , 15-25 GPa). 1 Magnesium naturally exists in bone tissues and its corrosion products generated in vivo can be easily excreted by human bodies.…”

Section: Introductionmentioning

confidence: 99%

“…1 Magnesium naturally exists in bone tissues and its corrosion products generated in vivo can be easily excreted by human bodies. 2,3 Furthermore, magnesium alloys avert a second surgery of removing the implant and relieve the patients' pain compared to conventional permanent metallic biomaterials (e.g. stainless steels, titanium alloys, cobalt chromium alloys, etc.).…”

Section: Introductionmentioning

confidence: 99%

“…27 The nature of substrate metals, composition and concentration of electrolyte, and applied electrical parameters plays a crucial role in the properties of coatings. [28][29][30][31] The composition of electrolytes can change the properties of coatings signicantly by altering the microstructure and composition of the coating. The addition of sodium tungstate (Na 2 WO 4 ) increases the electrolytic conductivity and enlarges the size of micro-pores generated in MAO coatings on AZ91HP magnesium alloys.…”

Section: Introductionmentioning

confidence: 99%

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Improving the corrosion resistance of micro-arc oxidation coated Mg–Zn–Ca alloy

et al. 2020

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The current trends of Mg alloys in biomedical applications—A review

2018

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Magnesium (Mg) has emerged as an ideal alternative to the permanent implant materials owing to its enhanced properties such as biodegradation, better mechanical strengths than polymeric biodegradable materials and biocompatibility. It has been under investigation as an implant material both in cardiovascular and orthopedic applications. The use of Mg as an implant material reduces the risk of long-term incompatible interaction of implant with tissues and eliminates the second surgical procedure to remove the implant, thus minimizes the complications. The hurdle in the extensive use of Mg implants is its fast degradation rate, which consequently reduces the mechanical strength to support the implant site. Alloy development, surface treatment, and design modification of implants are the routes that can lead to the improved corrosion resistance of Mg implants and extensive research is going on in all three directions. In this review, the recent trends in the alloying and surface treatment of Mg have been discussed in detail. Additionally, the recent progress in the use of computational models to analyze Mg bioimplants has been given special consideration.

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Synthesis and properties of hydroxyapatite-containing coating on AZ31 magnesium alloy by micro-arc oxidation

Cited by 96 publications

References 45 publications

High‐performance infrared emissivity of micro‐arc oxidation coatings formed on titanium alloy for aerospace applications

High‐performance infrared emissivity of micro‐arc oxidation coatings formed on titanium alloy for aerospace applications

Improving the corrosion resistance of micro-arc oxidation coated Mg–Zn–Ca alloy

The current trends of Mg alloys in biomedical applications—A review

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