Si-Al-Y Co-deposition Coatings Prepared on Ti-Al Alloy for Enhanced High Temperature Oxidation Resistance

Li, Yongquan; Xie, Fei; Li, Xuan

doi:10.1007/s11595-018-1919-4

Cited by 10 publications

(4 citation statements)

References 23 publications

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“…The low polymer density in swollen states causes poor mechanical performance for native pNiPAM hydrogels, limiting their biomedical applications 23 . Such poor mechanical property could be overcame using multi-component hydrogels, and the analogous in vivo microenvironment could be provided, which are preferable for 3D scaffolds allowing cells to grow and maintain the original morphology and functionality [24][25][26][27] . Moreover, the stiffness of the hydrogel is the critical parameter that determines the cell fate, such as stem cells and cancer cells [28][29][30] .…”

Section: Intruductionmentioning

confidence: 99%

Temperature responsive hydrogel for cells encapsulation based on graphene oxide reinforced poly(N- isopropylacrylamide)/hydroxyethyl-chitosan

Lü

Wei

et al. 2022

Materials Today Communications

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Section: Intruductionmentioning

confidence: 99%

Temperature responsive hydrogel for cells encapsulation based on graphene oxide reinforced poly(N- isopropylacrylamide)/hydroxyethyl-chitosan

Lü

Wei

et al. 2022

Materials Today Communications

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“…These features are beneficial for TiAl alloy components such as engine blades and vortex generators that need to withstand complex loads. At present, aluminides [27], silicides [28], Al-Cr [29][30][31], Al-Si [32,33], and their rare-earth-modified composite coating systems have been successfully prepared on TiAl alloys by this method. However, most of these coatings have been reported to be prepared at high-temperatures, thus the preparation process can impose adverse effects on the comprehensive mechanical properties of TiAl substrates.…”

Section: Introductionmentioning

confidence: 99%

Structure and High-Temperature Oxidation Properties of an Al-Co-Y diffusion Coating prepared on TiAl-Nb alloy at a Low Temperature

Li,

Wei,

et al. 2023

Preprint

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An Al-Co-Y diffusion coating was prepared on a TiAl alloy by pack cementation process at a low temperature range of 650-720 ℃. The influence of different activators and co-deposition temperatures on the coating’s microstructure and formation process, and high temperature oxida-tion performance was studied. The results showed that NaF was a more suitable activator for preparing the Al-Co-Y diffusion coating on TiAl alloy compared to NH4Cl and AlCl3. A more compact coating structure can be obtained when deposition was performed at 680 ℃ using NaF as the activator. The coating was mainly composed of a TiAl3 outer layer, a TiAl2 inner layer, and a thin Al-rich TiAl inter-diffusion layer. The growth of the coating exhibited a positive linear correlation between coating thickness increase and the square root of deposition time. The high-temperature oxidation tests showed that a dense scale mainly composed of Al2O3 and a small amount of TiO2 formed on the coating after oxidation at 950 ℃ for 100 h. The scale possessed excellent high-temperature oxidation resistance, with a parabolic rate constant of the oxidation weight gain approximately 4.9×10-3 mg2/cm4 h, which is lower than that of the TiAl substrate by about three orders of magnitude, and lower than that of the pure Al diffusion coating more than one order of magnitude.

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“…To take the advantage of TSDC material, picks with cutting tips made of TSDC (namely, SMART*CUT picks) have been developed to replace WC tipped picks for hard rock cutting [3]. Various studies have been carried out to understand or improve the properties of diamond-SiC composite [5][6], and to understand the performance and characteristics of the TSDC cutting tips in rock cutting [3,[7][8][9]. One important aspect of these studies is to understand the failure characteristics of the TSDC cutting tips [7].…”

Section: Introductionmentioning

confidence: 99%

“…As a first step in the study and to highlight the influence of the resultant angle, this work starts with a simplified scenario: only random variations in the resultant angle are considered and the uncertainties in other factors are ignored. Unlike previous models [3,[5][6] which were developed based on the scenario of underground coal mining roadway development, the modelling process in this paper does not rely on a particular production scenario.…”

Section: Introductionmentioning

confidence: 99%

Performance of Thermally Stable Diamond Composite as Rock Cutting Tips under Varied Resultant Force Angle

Sun

Guo

2022

MSF

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Various studies have been carried out to understand the properties and the performance of Thermally Stable Diamond Composite (TSDC) when it is used as the rock cutting tools. Existing studies focused on the influences of uncertain TSDC material properties, and randomly varied rock strengths and thickness on the failure probability of cutting tips made of TSDC. It is found that the compressive strength of TSDC cutting tips is much higher than their tensile strength. As a result, the ability of a TSDC cutting tip to bear the resultant force applied along its axis is much greater than its ability to bear the resultant force perpendicular to its axis. However, the resultant angle during rock cutting processes varies greatly. This study focuses on the investigation of the impact of varied resultant force angles on the performance and failure characteristics of TSDC as a rock cutting tip using Monte Carlo simulations. The results show that the varied resultant angle can significantly influence the failure characteristics of the TSDC cutting tip with a fixed attack angle.

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Si-Al-Y Co-deposition Coatings Prepared on Ti-Al Alloy for Enhanced High Temperature Oxidation Resistance

Cited by 10 publications

References 23 publications

Temperature responsive hydrogel for cells encapsulation based on graphene oxide reinforced poly(N- isopropylacrylamide)/hydroxyethyl-chitosan

Temperature responsive hydrogel for cells encapsulation based on graphene oxide reinforced poly(N- isopropylacrylamide)/hydroxyethyl-chitosan

Structure and High-Temperature Oxidation Properties of an Al-Co-Y diffusion Coating prepared on TiAl-Nb alloy at a Low Temperature

Performance of Thermally Stable Diamond Composite as Rock Cutting Tips under Varied Resultant Force Angle

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