Thermodynamic study on pack aluminizing systems of pure titanium and nickel

Zarchi, H.R. Karimi; Soltanieh, M.; Aboutalebi, M.R.; Guo, Xiping

doi:10.1016/s1003-6326(13)62668-0

Cited by 15 publications

(3 citation statements)

References 18 publications

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“…High Cr, Ni and low carbon content make it keep austenite state and be applied in an environment below 800 • C. However, AISI 304 stainless steel will be oxidized at a faster rate when the temperature reaches 900 • C, which limits its application in a wider range [4][5][6]. The high-temperature oxidation rate of materials could be improved by means of alloy addition, micro-crystallization [7][8][9], pre-oxidation [10], reactive element addition [10] and protective coating/film [11][12][13][14], among which protective coating/film is an effective way to extend materials' service life.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mullite Film Layers on the High-Temperature Oxidation Resistance of AISI 304 Stainless Steel

Wen

Wang

et al. 2021

Coatings

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Protective coating is an effective way to extend materials’ high-temperature service life. In order to improve the high-temperature oxidation resistance of AISI 304 stainless steel, mullite films with different layers were successfully prepared by the sol-gel method and the sintering process on the surface of stainless steel. The effect of the film layers on the high-temperature oxidation resistance of stainless steel at 900 °C for 100 h was studied. The analysis results of oxidation kinetics, X-rays diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive analysis (EDS) show that Al1.4Si0.3O2.7 mullite film effectively improved the high-temperature oxidation resistance of stainless steel. The sample with three-layer mullite film has the best high-temperature oxidation resistance. The mass gain and oxidation spalling mass are only 4.6% and 34.5% of those of the uncoated sample after 100 h cyclic oxidation at 900 °C. A chromium oxide layer was formed at the interface of mullite film and the substrate during the sintering process. The generation of selective Cr2O3 scale was promoted at the cyclic oxidation stage so that the sample with three-layers has excellent high-temperature oxidation resistance.

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Section: Introductionmentioning

confidence: 99%

Effect of Mullite Film Layers on the High-Temperature Oxidation Resistance of AISI 304 Stainless Steel

Wen

Wang

et al. 2021

Coatings

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“…One of the effective ways to improve the operational reliability and service life of parts made of titanium alloys operating under wear conditions, including at high temperatures, is to create coatings based on titanium aluminides on their surface [1]. The main technologies for production such coatings are laser synthesis [2,3], sputtering [4][5][6], self-propagating high-temperature synthesis [7], various deposition options [8][9][10][11], surfacing [12], immersion in the melt [13,14]. The main disadvantages of these technological methods should be attributed to the high-energy consumption, the complexity of the equipment, limited possibilities for shaping and redistribution of the finished product.…”

Section: Introductionmentioning

confidence: 99%

Structure and Phase Composition of the Al-Ti System Composites after Heat Treatment

Шморгун

Богданов

Kulevich

2021

DDF

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The studies results of the titanium with aluminum diffusion interaction at a temperature of 650 oC are presented. The phase and chemical composition of the diffusion interaction zone, the nature of the change in its thickness from the exposure time are determined. It is shown that accelerated cooling of explosion-welded composites from the heat treatment temperature leads to spontaneous separation of the aluminum layer with the formation of a coating based on the TiAl3 intermetallic compound on the titanium surface.

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“…Ni-Cr-Mo based alloys have been widely applied in aerospace and chemical industry for their excellent corrosion resistance under extreme conditions. 1,2 It has been reported that the Hastelloy C2000, with a nominal composition of Ni-23Cr-16Mo (wt-%), resists not only acids over a large range of temperature but also the insidious types of attack induced by chlorides and other halide solutions, specifically pitting, crevice attack and stress corrosion cracking. 3,4 Therefore, the C2000 alloy is a very promising candidate as filter material for dusty gas purification at high temperature.…”

Section: Introductionmentioning

confidence: 99%

Grain boundary character distribution and its effect on corrosion of Ni–23Cr–16Mo superalloy

Shi

Zhang

et al. 2016

Materials Science and Technology

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Grain boundary character distribution (GBCD) of the Hastelloy C2000 alloy (Ni-23Cr-16Mo) and the effect of coincidence site lattice (CSL) grain boundaries on corrosion resistance were examined by electron backscattered diffraction and electrochemical experiments. Various deformation followed by annealing was applied to optimise the GBCD of the alloy. After grain boundary engineering (GBE) treatment, the proportion of CSL boundaries increased from 37.7% to 62.4% and the corrosion current density of the specimens decreased in NaCl solution. The results indicated that GBE treatment is responsible for preferable corrosion resistance due to the increase of the fraction of special low energy grain boundaries with perfect grain boundary atom arrangement after thermomechanical process.

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Thermodynamic study on pack aluminizing systems of pure titanium and nickel

Cited by 15 publications

References 18 publications

Effect of Mullite Film Layers on the High-Temperature Oxidation Resistance of AISI 304 Stainless Steel

Effect of Mullite Film Layers on the High-Temperature Oxidation Resistance of AISI 304 Stainless Steel

Structure and Phase Composition of the Al-Ti System Composites after Heat Treatment

Grain boundary character distribution and its effect on corrosion of Ni–23Cr–16Mo superalloy

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