Study on the Effect of Carburizing on the Microstructure and High-Temperature Oxidation Properties of Hot-Dip Aluminum Coating on Titanium Alloy

Yang, Wenying; Li, Faguo

doi:10.3390/coatings13081336

Cited by 3 publications

(1 citation statement)

References 37 publications

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“…Yang Wenying et al [89] combined the hot-dip aluminum process with the carburiz ing process. First, a layer of pure aluminum was hot-dipped on the Ti65 alloy, and then i was solid carburized.…”

Section: Carburizingmentioning

confidence: 99%

Research Status of Aluminum Base Coating on Titanium Alloy

Zeng,

2023

Coatings

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At present, in the aviation industry, titanium alloy is mainly used to manufacture parts such as compressor discs, blades, and the casings of aircraft engines. When titanium alloys are in service, high temperature is generated due to high-speed running friction, which requires them to have high-temperature oxidation resistance and friction resistance. If they are used in an environment with salt corrosion, titanium alloys will face thermal corrosion, which limits their wider practical applications. At present, there are many methods to protect titanium alloys. This paper mainly includes alumina-based coatings and some preparation methods. The characteristics and functional mechanisms of three functional coatings for the service environment, namely highly temperature-resistant alumina-based coating, thermal corrosion-resistant alumina-based coating, and wear-resistant alumina-based coating, are summarized. Finally, the development direction of composite coatings of titanium and titanium alloys for a complex service environment is suggested.

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Section: Carburizingmentioning

confidence: 99%

Research Status of Aluminum Base Coating on Titanium Alloy

Zeng,

2023

Coatings

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Influence of Aluminum on the Retained Austenite Content and Stresses in the Surface Layer of Steel after a Hybrid Low‐Pressure Carburizing Process with Metallization

Kowalczyk,

Dybowski,

Januszewicz

et al. 2024

Adv Eng Mater

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The article presents a unique method of modifying the surface layer properties of low‐alloy steels. This method consists of the simultaneous saturation of the surface layer with aluminum and carbon. A hybrid heat treatment process is used, which integrates diffusion metallization with low‐pressure carburizing (LPC). An aluminum coating is applied to the surface of the steel by physical vapour deposition or slurry method to saturate the surface layer with aluminum. The steel is then annealed to create a diffusion layer and subjected to LPC. Gas quenching in nitrogen and low‐temperature tempering are performed after carburization. This surface treatment tenfold reduces the amount of retained austenite in the carburized layer. This is particularly critical for carburized steels that include austenite‐stabilizing elements, such as nickel and manganese. This causes an increase in surface hardness. It also changes the state of residual stress compared to ordinary LPC to one that is more favorable from the point of view of operation—compressive stresses are generated in the technological surface layer.

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Research Status of Aluminum Base Coating on Titanium Alloy

Zeng¹,

Li²

2023

Preprint

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At present, in the field of aviation industry, titanium alloy is mainly used to manufacture parts such as compressor disc, blade and casing of aircraft engine. When working, titanium alloy parts produce high temperature due to high-speed running friction, which makes the high temperature oxidation resistance and friction resistance of titanium alloy greatly reduced. When their working environment contains salt, titanium alloys are subjected to thermal corrosion, which limits their wider practical applications. This paper introduce the aluminide coating and its preparation methods. The characteristics and functional mechanism of three functional coatings for service environment, such as high temperature resistant alumina-based coating, thermal corrosion resistant alumina-based coating and wear-resistant alumina-based coating are summarized. Finally, the development direction of composite coatings of titanium and titanium alloys for complex service environment is prospected.

show abstract

Study on the Effect of Carburizing on the Microstructure and High-Temperature Oxidation Properties of Hot-Dip Aluminum Coating on Titanium Alloy

Cited by 3 publications

References 37 publications

Research Status of Aluminum Base Coating on Titanium Alloy

Research Status of Aluminum Base Coating on Titanium Alloy

Influence of Aluminum on the Retained Austenite Content and Stresses in the Surface Layer of Steel after a Hybrid Low‐Pressure Carburizing Process with Metallization

Research Status of Aluminum Base Coating on Titanium Alloy

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