Results 181 to 190 of about 2,118 (231)
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TMF of Directionally Solidified and Single Crystal Superalloy
Advanced Materials Research, 2011Directional 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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Directionally Solidified and Single-Crystal Superalloys
1990Abstract Directionally solidified (DS) and single-crystal (SX) superalloys and process technology are contributing to significant advances in turbine engine efficiency and durability. These gains are expected to arise from the development of higher creep strength and improved oxidation-resistant SX alloy compositions as well as from the ...
K. Harris, G.L. Erickson, R.E. Schwer
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Creep-rupture behavior of a directionally solidified nickel-base superalloy
Metallurgical and Materials Transactions A, 2001The creep-rupture behavior of the directionally solidified (DS) nickel-base superalloy DZ17G has been investigated over a wide stress range of 60 to 950 MPa at high temperature (923 to 1323 K). In this article, the detailed creep deformation and fracture mechanisms at constant load have been studied.
Guo JT +4 more
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THE RECRYSTALLIZATION OF Ni BASE DIRECTIONALLY SOLIDIFIED SUPERALLOY DZ417G
ACTA METALLURGICA SINICA, 2010Large quantities of VIDP400 vacuum furnace smelting DZ417G oriented superalloys smelting process has been researched, analysis of the main factors affecting the organizational uniformity and stability, as well as the impact of high temperature tensile and lasting properties has been studied.
Sheng PENG +3 more
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CYCLIC DEFORMATION OF A DIRECTIONALLY SOLIDIFIED COBALT‐BASE SUPERALLOY
Fatigue & Fracture of Engineering Materials & Structures, 1998An investigation has been carried out on the cyclic deformation and changes in microstructure of a directionally solidified cobalt‐base superalloy. The tests are conducted at 700 °C and 850 °C in air under different total strain amplitudes. The alloy tested at 700 °C exhibits an initial hardening, a short saturation stage and an evident secondary ...
null Zheng +3 more
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Thermal cycling creep properties of a directionally solidified superalloy DZ125
Journal of Materials Science & Technology, 2022Abstract 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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Creep behavior of a directionally solidified nickel based superalloy
Strength, Fracture and Complexity: An International Journal, 2006Directionally solidified nickel-base superalloys provide significant improvements relative to the limitations inherent to equiaxed materials in the areas of creep resistance, oxidation, and low and high cycle fatigue resistance. The objectives of this study are to perform critical experiments and investigate the high temperature creep deformation ...
Alejandro R. Ibañez +2 more
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Corrosion kinetics of a directionally solidified Ni-base superalloy
Acta Materialia, 2007A 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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Weld Cracking in Directionally Solidified Inconel 738 Superalloy
Canadian Metallurgical Quarterly, 2007AbstractThe microstructure of a laser beam welded directionally solidified Inconel 738 (DS IN738) superalloy was studied. The alloy was welded along the longitudinal (the solidification direction) and the transverse (perpendicular to solidification) direction in two pre-weld heat treated conditions. The material suffered intergranular microfissuring in
R.K. Sidhu, O.A. Ojo, M.C. Chaturvedi
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Grain Structure Prediction for Directionally Solidified Superalloy Castings
JOM, 2020A highly parallelized mesoscale solidification model based on a cellular automaton method was coupled with a macroscale process model to predict grain structure during directional solidification.
A. Durga +4 more
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