Laser-cladded Al-Cr-Ti ternary alloy coatings on Ti-4Al-2V alloy: Specific microstructure and enhanced surface performance

Li, Zhihao; Chai, Linjiang; Qi, Lan; Wang, Yueyuan; Liu, Yuanzhuo; Yang, Tao; Wang, Hao; Guo, Ning; Zhao, Yang

doi:10.1016/j.surfcoat.2022.129073

Cited by 9 publications

(3 citation statements)

References 53 publications

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“…Due to the coexistence of Al, Cr, and Ti elements, a multiphase structure is generated, and the hardness and wear resistance of titanium alloy are improved [83][84][85]. Li Zhihao et al [86] prepared a Ti-Al-Cr alloy layer on Ti-4Al-2V alloy using pulsed laser-cladding technology, and the alloy layer had good metallurgical bonding with the substrate. The results showed that the microhardness of the Ti-Al-Cr alloy layer was about twice that of the titanium alloy substrate, and the wear rate was only 1/3 of the substrate.…”

Section: Chromium-modified Aluminide Coatingmentioning

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: Chromium-modified Aluminide Coatingmentioning

confidence: 99%

Research Status of Aluminum Base Coating on Titanium Alloy

Zeng,

2023

Coatings

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“…Referring to the ternary phase diagram of Ti-Al-Si, it could be seen that Si can be solidly dissolved in TiAl 3 , replacing some of Al atoms in TiAl 3 to form Ti(Al,Si) 3 secondary solid solution [20]. Compared with other methods for preparing Ti-Al-Si coating, such as the self-generated gradient hot-dipping infiltration (SGHDI) [3,5] and pulsed laser cladding [21,22], the two-step hot-dip plating method could not only better control the content of added Si, inhibit the formation of τ 2 phase but also make the shape of the sample free from the restriction of quartz glass tube, even the sample with complex shape can be hot-dip plating, and the equipment was simple and easy to operate.…”

Section: Introductionmentioning

confidence: 99%

Study on the Influence Law of Ce on Microstructure and High-Temperature Oxidation Resistance of Ti-Al-Si Composite Coating

Zeng

2023

Coatings

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High-temperature titanium alloys are widely used in aerospace hot parts; however, the thermal barrier temperature of 600 °C limits its service temperature. In this paper, a two-step hot-dip plating method is proposed to prepare the composite coating containing Ce on the surface of titanium alloy, which can make the oxidation resistance temperature of titanium alloy reach 800 °C The microstructure, phase composition, and element distribution of Ce-containing Ti-Al-Si hot-dip coating, Ce-containing Ti-Al-Si pre-oxidation coating and Ce-containing Ti-Al-Si high-temperature oxidation coating were studied. The results showed that the Ti-Al-Si hot-dip coating containing Ce was mainly composed of (Ti,Ce)(Al,Si)3 alloy phase layer, and the Ti-Al-Si pre-oxidation coating containing Ce was mainly composed of Ti-Al binary system phase layer and dense Al2O3 layer rich in CeO2. Ce in the high-temperature oxidation coating of Ti-Al-Si containing Ce was mainly distributed in Ti3Al, TiAl, TiAl3 + Ti5Si3 mixed phase layer and Al2O3. The addition of Ce could improve the uniformity of composite coating, prevent the spread of cracks, and improve the high-temperature oxidation resistance of Ti-Al-Si coating.

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“…Referring to the ternary phase diagram of Ti-Al-Si, it can be seen that Si can be solidly dissolved in TiAl3, replacing some of Al atoms in TiAl3 to form Ti(Al,Si)3 secondary solid solution [19]. Compared with other methods for preparing Ti-Al-Si coating, such as the self-generated gradient hot-dipping infiltration (SGHDI) [3,5] and pulsed laser cladding [20], the two-step hot-dip plating method can not only better control the content of added Si, inhibit the formation of τ2 phase, but also make the shape of the sample free from the restriction of quartz glass tube, and the equipment is simple and easy to operate.…”

Section: Introductionmentioning

confidence: 99%

Study on the Influence Law of Ce on Microstructure and High Temperature Oxidation Resistance of Ti-Al-Si Composite Coating

Zeng¹,

Li²

2023

Preprint

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High temperature titanium alloys are widely used in aerospace hot parts, however, the thermal barrier temperature of 600 oC limits its service temperature. In this paper, a two-step hot-dip plating method is proposed to prepare the composite coating containing Ce on the surface of titanium alloy, which can make the oxidation resistance temperature of titanium alloy reach 800 oC The microstructure, phase composition and element distribution of Ce-containing Ti-Al-Si hot-dip coating, Ce-containing Ti-Al-Si pre-oxidation coating and Ce-containing Ti-Al-Si high-temperature oxidation coating were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), respectively. The results show that the Ti-Al-Si hot-dip coating containing Ce is mainly composed of (Ti,Ce)(Al,Si)3 alloy phase layer, and the Ti-Al-Si pre-oxidation coating containing Ce is mainly composed of Ti-Al binary system phase layer and dense Al2O3 layer rich in CeO2. Ce in the high temperature oxidation coating of Ti-Al-Si containing Ce is mainly distributed in Ti3Al, TiAl, TiAl3+Ti5Si3 mixed phase layer and Al2O3. The addition of Ce can promote the formation of continuous Al2O3 layer, improve the uniformity of composite coating, prevent the spread of cracks, and improve the high temperature oxidation resistance of Ti-Al-Si coating.

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Laser-cladded Al-Cr-Ti ternary alloy coatings on Ti-4Al-2V alloy: Specific microstructure and enhanced surface performance

Cited by 9 publications

References 53 publications

Research Status of Aluminum Base Coating on Titanium Alloy

Research Status of Aluminum Base Coating on Titanium Alloy

Study on the Influence Law of Ce on Microstructure and High-Temperature Oxidation Resistance of Ti-Al-Si Composite Coating

Study on the Influence Law of Ce on Microstructure and High Temperature Oxidation Resistance of Ti-Al-Si Composite Coating

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