Results 81 to 90 of about 621 (208)
Tensile Behavior of Long-term Aged Nickel-base Superalloy
High Temperature Materials and Processes, 2015 The microstructural change of directionally solidified nickel-base superalloy which was aged at 900 °C for 1500 hours and tensile behavior at different temperatures were investigated by scanning electron microscope (SEM) and transmission electron ...
Xia P. C., Chen F. W., Xie K., Yu J. J.
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, 2020 In the present research, efforts were made to understand the mechanistic and microstructural aspects of the low cycle fatigue failure of a directionally solidified (DS) nickel-based superalloy under relevant operating conditions.
J. K. Sahu +7 more
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Nihon Kikai Gakkai ronbunshu, 2016 Low cycle fatigue tests at elevated temperature were conducted on a Ni-based directionally solidified superalloy subjected to transverse loading. To investigate the effect of the arrangement and the orientation of crystal grains on the crack initiation ...
Takashi YOKOYAMA, Masaru SEKIHARA
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, 2018 This paper reports new dislocation configurations responsible for cyclic hardening/softening behaviour of a directionally solidified nickel base superalloy after relaxation fatigue tests at 850 degrees C with hold durations of 1 and 5 min.
Rai, R K, Sahu, J K
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Process Optimization in Laser Welding of IN792 DS Superalloy
MetalsNi-base superalloys are employed to produce parts of aeronautic engines, space vehicles and power plants. During the production process or lifetime of components, cracks may occur which affect their performance.
Giuseppe Barbieri +7 more
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Nihon Kikai Gakkai ronbunshu, 2016 Low cycle fatigue tests at elevated temperature were conducted on a Ni-based directionally solidified superalloy with small holes subjected to transverse loading.
Takashi YOKOYAMA, Masaru SEKIHARA
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Chinese Journal of Mechanical EngineeringCreep is one of the most typical failure modes for the turbine blades of an aero-engine. The microstructure of the turbine blades after long-term service can be adjusted by rejuvenation heat treatment (RHT) to restore its creep properties.
Rongqiao Wang +6 more
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Out of phase thermal mechanical fatigue investigation of a directionally solidified superalloy DZ125
, 2016 Out of phase (OP) thermal mechanical fatigue (TMF) behavior of a directionally solidified (DS) superalloy DZ125 was experimentally and numerically studied.
Yu, Huichen +3 more
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EFFECT OF MICROSCOPIC INHOMOGENEITY ON CREEP-FATIGUE CRACK PROPAGATION OF TRANSVERSALLY LOADED DIRECTIONALLY SOLIDIFIED SUPERALLOY [PDF]
, 2020 Directionally solidified superalloy, which has elongated large grains, is used for a gas-turbine blade because of its high creep strength. Since the grain size is not small enough in comparison with the size of component and crack, the inhomogeneous ...
Masato Yamamoto
core
Hot Tearing in Directionally Solidified Ni-Base Superalloys
Superalloys 2004 (Tenth International Symposium), 2004 The hot tearing mechanism has been studied in directionally solidified (DS) Ni-based superalloys with columnar grain structures. Castability tests and optical metallography of quenched samples were employed to explore the effect of microstructural evolution, grain boundary characteristics on the susceptibility of hot cracking formation during DS ...
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