Formation of Two-Layer Heat-Resistant Coatings on TC11 Alloy by Electro-Spark Alloying Method

Dolgiy, Zakhar O.; Shao, Wen; Kozyr, A.; Мартынов, С. В.

doi:10.4028/www.scientific.net/amr.538-541.175

Cited by 1 publication

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“…Similarly, Tang et al [71] found that a Ti600 alloy with a lamellar microstructure exhibited higher oxidation resistance compared to bimodal structures. Dolgiy et al [74]. used the spark alloying method to prepare coatings on a TC11 alloy (Ti-6.5Al-3.5Mo-1.5Zr-0.3Si wt%).…”

Section: High Temperature Oxidation Resistancementioning

confidence: 99%

Research Progress in Electrospark Deposition Coatings on Titanium Alloy Surfaces: A Short Review

Wang,

Zhang,

Dai

et al. 2023

Coatings

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The development process of electrospark deposition (ESD) technology is reviewed, and the principles and differences of ESD technology are discussed in this review. Based on the research status regarding the ESD of titanium alloys, the promotion effect of ESD technology on wear resistance, corrosion resistance, oxidation resistance at high temperatures, and the biocompatibility of titanium alloys was elaborated on. For example, with the use of ESD technology to prepare Ti–Al, TiN, Ni–Cr, and other hardening coatings with high hardness, the maximum hardness of the deposited layer is six times higher than that of the substrate material, which greatly reduces the loss of the material surface in the process of friction in service, and has a high wear–resistance effect. The preparation of a single–phase lamellar coating is more beneficial for improving the oxidation resistance of the substrate. Carbide and a nano–porous coating can effectively enhance the bone integration ability of implants and promote biocompatibility. The application of ESD technology in the surface modification of titanium alloys is reviewed in detail. Finally, the development direction of ESD technology for titanium alloys is proposed.

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Section: High Temperature Oxidation Resistancementioning

confidence: 99%