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Improvement in creep life of a nickel-based single-crystal superalloy via composition homogeneity on the multiscales by magnetic-field-assisted directional solidification. [PDF]

Sci Rep, 2018
Ren W, Niu C, Ding B, Zhong Y, Yu J, Ren Z, Liu W, Ren L, Liaw PK.   +8 more
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Anisotropic viscoplasticity constitutive model for directionally solidified superalloy

Materials at High Temperatures, 2012
AbstractThe macroscopic deformation behaviour of a Ni-based directionally solidified (DS) superalloy was experimentally investigated, and an anisotropic constitutive model of the material was developed. Monotonic and creep tests were performed on uniaxial test specimens machined from DS plates so that the angle between the loading direction and the ...
exaly   +2 more sources

Solidification morphologies in directionally solidified superalloys

Materials Science and Engineering, 1984
the microstructures of several nickel-base superalloys directionally solidified using a wide range of processing conditions have been examined. The conditions required for plane front solidification are compatible with the concepts of constitutional supercooling.
P.N. Quested, M. McLean
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Elastic Anisotropy of Directionally Solidified Superalloy

Journal of Engineering Materials and Technology, 1992
This paper describes the elastic compliance matrix and Young’s modulus of directionally solidified (DS) plates which are composed of five columnar grains. Threedimensional finite element method analyses (FEM), taking account of the anisotropy of a crystal, were made to determine the elastic compliance matrix of the DS plate.
Tadashi Hasebe, Masao Sakane, Masateru Ohnami   +2 more
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Castability of directionally solidified nickel base superalloys

Materials Science and Technology, 1999
AbstractGrain boundary cracking during directional solidification of columnar grained nickel base superalloys has been investigated. A quantitative test has been developed that allows a classification of the castability of directionally solidified nickel base superalloys: CM247LC showed excellent castability, while IN792 showed severe cracking.
K. Heck, R. Blackford, R.F. Singer
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An Anisotropic Constitutive Model for a Directionally Solidified Superalloy

Key Engineering Materials, 2007
The monotonic tensile and creep deformations of a directionally solidified (DS) superalloy are investigated for several loading directions. The material exhibits remarkable anisotropy under elastic and creep loading conditions, whereas it shows isotropy under loading conditions of high strain rates.
Masatsugu Yaguchi, Masato Yamamoto, Takashi Ogata, Nobutada Ohno   +3 more
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Recrystallization in a directionally solidified cobalt-base superalloy

Materials Science and Engineering: A, 2008
The recrystallization behavior in a range of annealing temperature from 1020 to 1280 degrees C in a directionally solidified cobalt-base superalloy was studied. Local recrystallization first appeared at 1040 degrees C. The recrystallized volume increased rapidly as increasing the annealing temperature. Pinning effect of all carbides (M23C6, M7C3 and MC)
S. Pu, J. Zhang, Y.F. Shen, L.H. Lou
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