Effect of Mo, Ta, and Re on high-temperature oxidation behavior of minor Hf doped β-NiAl alloy

Han, Baoming; Ma, Yue; Peng, Hui; Liu, Zheng; Guo, Hongbo

doi:10.1016/j.corsci.2015.10.011

Cited by 73 publications

(14 citation statements)

References 49 publications

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“…The ceramic top coat acts as a thermal insulation layer, usually made of yttria partially stabilized zirconia (YSZ). The bond coat protects the substrate from corrosion and oxidation and improves the adhesion between the ceramic top coat and the substrate . TBCs are mainly produced by air plasma spraying (APS) or electron beam physical vapor deposition (EB‐PVD) .…”

Section: Introductionmentioning

confidence: 99%

“…The bond coat protects the substrate from corrosion and oxidation and improves the adhesion between the ceramic top coat and the substrate. [4][5][6] TBCs are mainly produced by air plasma spraying (APS) or electron beam physical vapor deposition (EB-PVD). [7][8][9][10] While the application of TBCs allows higher operating temperature of engines for enhanced performance and efficiency, the elevated temperature brings about new coating failure issues.…”

Section: Introductionmentioning

confidence: 99%

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Plasma sprayed nanostructured GdPO₄ thermal barrier coatings: Preparation microstructure and CMAS corrosion resistance

Guo

Cheng

et al. 2017

J Am Ceram Soc

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Nanostructured GdPO4 thermal barrier coatings (TBCs) were prepared by air plasma spraying, and their phase structure evolution and microstructure variation due to calcium–magnesium–alumina–silicate (CMAS) attack have been investigated. The chemical composition of the coating is close to that of the agglomerated particles used for thermal spraying. Nanozones with porous structure are embedded in the coating microstructure, with a percentage of ~30%. CMAS corrosion tests indicated that nanostructured GdPO4 coating is highly resistant to penetration by molten CMAS at 1250°C. Within 1 hour heat treatment duration, a continuous dense reaction layer forms on the coating surface, which are composed of P–Si apatite based on Ca2+xGd8−x(PO4)x(SiO4)6−xO2, anorthite and spinel phases. This layer provides effective prevention against CMAS further infiltration into the coating. Prolonged heat treatment densifies the reaction layer but does not change its phase composition.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Plasma sprayed nanostructured GdPO₄ thermal barrier coatings: Preparation microstructure and CMAS corrosion resistance

Guo

Cheng

et al. 2017

J Am Ceram Soc

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“…Such a dependence of mechanical properties on temperature handicaps the application of NiAl as the structural parts suffering loading and corrosion [11][12][13]. However, the excellent oxidation and corrosion resistance of NiAl still makes it to be qualified as the protecting shield or fixed part [14]. Whatever, these applications also require that NiAl should have certain strength and deformability.…”

mentioning

confidence: 99%

Optimization of the Microstructure and Mechanical Properties of a Laves Phase-Strengthened Hypoeutectic NiAl/Cr(Mo,W) Alloy by Suction Casting

Sheng

Zan

et al. 2018

Strength Mater

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Êëþ÷îâ³ ñëîâà: ëèòòÿ ìåòîäîì âàêóóìíîãî âñìîêòóâàííÿ, ôàçà Ëàâåñà, ì³êðîñòðóêòóðà, äîåâòåêòè÷íèé ñïëàâ NiAl/Cr(Mo,W), ìåõàí³÷í³ âëàñòèâîñò³. Introduction.Recently, Ni-based intermetallic compounds have been paid much attention, due to its high melting point, special interfacial chemical properties, and good environment tolerance [1][2][3]. As a kind of intermetallic compound, NiAl owns many attractive advantages such as high melting point, excellent oxidation and corrosion resistance, relative low density, good thermal conductivity etc [4][5][6]. Therefore, it has been thought as the potential candidate for high temperature structure materials subjected to the severe oxidation and corrosion [7,8]. According to previous researches [9,10], NiAl has

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“…When added even at low quantities (0.2-0.3%), lanthanum simultaneously increased the strength and ductility of the alloy [41]. Molybdenum contributed to enhancement of strength and thermal stability of intermetallic alloys [38,42]. Creep resistance and resistance to sulfide corrosion increase at molybdenum content lower than 3% [35,42].…”

Section: Introductionmentioning

confidence: 99%

Structure and Properties of Heat-Resistant Alloys NiAl–Cr–Co–X (X = La, Mo, Zr, Ta, Re) and Fabrication of Powders for Additive Manufacturing

et al. 2021

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The NiAl–Cr–Co–X alloys were produced by centrifugal self-propagating high-temperature synthesis (SHS) casting. The effects of dopants X = La, Mo, Zr, Ta, and Re on combustion, as well as the phase composition, structure, and properties of the resulting cast alloys, have been studied. The greatest improvement in overall properties was achieved when the alloys were co-doped with 15% Mo and 1.5% Re. By forming a ductile matrix, molybdenum enhanced strength characteristics up to the values σucs = 1604 ± 80 MPa, σys = 1520 ± 80 MPa, and εpd = 0.79%, while annealing at T = 1250 ℃ and t = 180 min improved strength characteristics to the following level: σucs = 1800 ± 80 MPa, σys = 1670 ± 80 MPa, and εpd = 1.58%. Rhenium modified the structure of the alloy and further improved its properties. The mechanical properties of the NiAl, ZrNi5, Ni0.92Ta0.08, (Al,Ta)Ni3, and Al(Re,Ni)3 phases were determined by nanoindentation. The three-level hierarchical structure of the NiAl–Cr–Co+15%Mo alloy was identified. The optimal plasma treatment regime was identified, and narrow-fraction powders (fraction 8–27 µm) characterized by 95% degree of spheroidization and the content of nanosized fraction <5% were obtained.

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Effect of Mo, Ta, and Re on high-temperature oxidation behavior of minor Hf doped β-NiAl alloy

Cited by 73 publications

References 49 publications

Plasma sprayed nanostructured GdPO₄ thermal barrier coatings: Preparation microstructure and CMAS corrosion resistance

Plasma sprayed nanostructured GdPO₄ thermal barrier coatings: Preparation microstructure and CMAS corrosion resistance

Optimization of the Microstructure and Mechanical Properties of a Laves Phase-Strengthened Hypoeutectic NiAl/Cr(Mo,W) Alloy by Suction Casting

Structure and Properties of Heat-Resistant Alloys NiAl–Cr–Co–X (X = La, Mo, Zr, Ta, Re) and Fabrication of Powders for Additive Manufacturing

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Effect of Mo, Ta, and Re on high-temperature oxidation behavior of minor Hf doped β-NiAl alloy

Cited by 73 publications

References 49 publications

Plasma sprayed nanostructured GdPO4 thermal barrier coatings: Preparation microstructure and CMAS corrosion resistance

Plasma sprayed nanostructured GdPO4 thermal barrier coatings: Preparation microstructure and CMAS corrosion resistance

Optimization of the Microstructure and Mechanical Properties of a Laves Phase-Strengthened Hypoeutectic NiAl/Cr(Mo,W) Alloy by Suction Casting

Structure and Properties of Heat-Resistant Alloys NiAl–Cr–Co–X (X = La, Mo, Zr, Ta, Re) and Fabrication of Powders for Additive Manufacturing

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Product

Resources

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Plasma sprayed nanostructured GdPO₄ thermal barrier coatings: Preparation microstructure and CMAS corrosion resistance

Plasma sprayed nanostructured GdPO₄ thermal barrier coatings: Preparation microstructure and CMAS corrosion resistance