MC carbide formation in directionally solidified MAR-M247 LC superalloy
Materials Science and Engineering: A, 1998Abstract MC-type carbide formation in MAR-M247 LC superalloy was systematically investigated using directional solidification and quenching methods in sample growth rates between 0.8×10−6 and 15×10−6 m s−1. The results indicate that carbide growth rate, carbide forming element enrichment and surrounding solid geometry determine carbide morphology and
J Chen +4 more
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Reduced-Order Constitutive Modeling of Directionally Solidified Ni-Base Superalloys
Journal of Engineering Materials and Technology, 2014Temperature-dependent crystal viscoplasticity models are ideal for modeling large-grained, directionally solidified Ni-base superalloys but are computationally expensive. This work explores the use of reduced-order models that are potentially more efficient with similar predictive capability of capturing temperature and orientation dependence. First, a
S. D. Neal, R. W. Neu
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Microstructural stability of the directionally solidified γ′-base superalloy IC6
Materials Science and Engineering: A, 1993Abstract The microstructural stability of an NiAlMo directionally solidified γ′-base superalloy, IC6, was investigated and the effect on microstructure and tensile properties at room temperature and 760°C of high temperature aging at 900–1100°C for up to 200 h was studied. The experimental results show that the tensile strength decreases with aging
Y.F. Han, S.H. Li, M.C. Chaturvedi
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Hot workability characteristics of Rene88DT superalloy with directionally solidified microstructure
Rare Metals, 2014Abstract The hot deformation characteristics of Rene88DT superalloy with directionally solidified microstructure produced by electroslag remelting continuous directionally solidification (ESR‐CDS ® ) were studied in the temperature range of 1,040–1,140 °C and strain rate ...
Fu‐Lin Li +3 more
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Thermal Fatigue Behavior of a Nickel-Base Directionally Solidified Superalloy
Advanced Materials Research, 2013Thermal fatigue behavior of a nickel-base directionally solidified superalloy was investigated using the notched flaky specimen. The da/dN K curve and da/dN-a relationship has been applied to analyze the thermal stress.
Kai Zhao +4 more
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High Temperature Tensile Behavior of Directionally Solidified MAR-M247 Superalloy
Materials Science Forum, 2014In this study, two heat treatment schemes were proposed to study the high temperature mechanical behavior of directionally solidified MAR-M247 superalloy. Two withdraw rates, namely, 60 and 180 mm/h were used to produce directionally solidified MAR-M247 specimens by the Bridgeman type furnace.
Hui Yun Bor +5 more
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Strength-ductility paradox in a directionally solidified nickel base superalloy
Materials Letters, 2018Abstract In contrast to other structural alloys, yield strength of nickel base superalloys either remains constant or increases with temperature up to 700–800 °C making them more suitable for high temperature structural applications. However, the increase in yield strength is usually accompanied by a decrease in ductility.
R.K. Rai, J.K. Sahu
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Microstructural evolution of NiCoCrAlY coated directionally solidified superalloy
Surface and Coatings Technology, 2022Xin Zhan +6 more
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Dendrite spacing in a directionally solidified superalloy
Metallurgical Transactions A, 1981S. N. Tewari, A. M. Sriramamurthy
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Grinding Burn Mechanism of Directionally Solidified Superalloy
Key Engineering Materials, 2001Ming Chen, Fang Hong Sun, Bing Yuan Xue
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