Results 151 to 160 of about 621 (208)
TMF of Directionally Solidified and Single Crystal Superalloy
Advanced Materials Research, 2011 Directional solidification and single crystal technology reduces material defects, improves material mechanical property and improves resistances to the high temperature fatigue, creep and corrosion. Accumulation of fatigue damage is a method of life prediction analysis and many fatigue damage models are proposed.
Qing Wu Wang, Shi Hui Zhang, Mao Pang
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Corrosion kinetics of a directionally solidified Ni-base superalloy
Acta Materialia, 2007 A variety of experiments were carried out to characterize the corrosion kinetics of a longitudinally oriented directionally solidified Ni-base superalloy, DS GTD-111, commonly applied as a first- and second-stage blading material in electric power generation gas-powered turbines.
Gordon, Ali P. +4 more
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Thermal cycling creep properties of a directionally solidified superalloy DZ125
Journal of Materials Science & Technology, 2022 Abstract Aero-engine turbine blades may suffer overheating during service, which can result in severe microstructural and mechanical degradation within tens of seconds. In this study, the thermal cycling creep under (950°C/15 min+1100°C/1 min)-100 MPa was performed on a directionally solidified superalloy, DZ125.
Wenrui An +6 more
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Strength-ductility paradox in a directionally solidified nickel base superalloy
Materials Letters, 2018 Abstract 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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Anisotropic viscoplasticity constitutive model for directionally solidified superalloy
Materials at High Temperatures, 2012AbstractThe 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 ...
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Damage nucleation during transverse creep of a directionally solidified Ni-based superalloy
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2022 International audienceA directionally solidified Ni-based superalloy DS200 is investigated under low (750 • C) and high temperature (900 • C) transverse creep.
J C Stinville +2 more
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Solidification morphologies in directionally solidified superalloys
Materials Science and Engineering, 1984the 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, 1992This 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 +2 more
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