Results 91 to 100 of about 2,118 (231)
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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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 ...
openaire +1 more source
Longitudinal shear behavior of several oxide dispersion strengthened alloys [PDF]
Two commercial oxide dispersion strengthened (ODS) alloys, MA-753 and MA-754, and three experimental ODS alloys, MA-757E, MA-755E, and MA-6000E, were tested in shear at 760 C. Comparisons were made with other turbine blade and vane alloys. All of the ODS
Glasgow, T. K.
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TLP joining mechanism and performance analysis of GH188/IC10 dissimilar superalloy
Hanjie xuebaoThe transient liquid phase (TLP) bonding of polycrystalline superalloy GH188 with directionally solidified superalloy IC10 was performed using BNi-2 interlayer material.
Tong WU +6 more
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Effect of cooling rate on MC carbide in directionally solidified nickel-based superalloy under high thermal gradient [PDF]
China Foundry, 2012 A series of directional solidification experiments have been performed to study the effect of cooling rate on the precipitation behavior of MC carbide in nickel-based superalloy under the temperature gradient of 500 K·s-1.
Zhang Weiguo, Liu Lin, Fu Hengzhi
doaj
Quaternary and quinary modifications of eutectic superalloys strengthened by delta Ni3Cb lamellae and gamma prime Ni3Al precipitates [PDF]
By means of a compositional and heat treatment optimization program based on the quaternary gamma/gamma prime-delta, a tantalum modified gamma/gamma prime-delta alloy with improved shear and creep strength combined with better cyclic oxidation resistance
Lemkey, F. D., Mccarthy, G. P.
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Journal of Materials Research and TechnologyThe additive manufacturing of directionally solidified Ni-based superalloys remains a significant challenge due to the formation of stray equiaxed grains and their high susceptibility to cracking, particularly for high-volume γ´-type Ni-based superalloys.
Fangxian Zhang +5 more
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Materials review for improved automotive gas turbine engine [PDF]
The potential role of superalloys, refractory alloys, and ceramics in the hottest sections of engines operating with turbine inlet temperatures as high as 1370 C is examined.
Belleau, C., Ehlers, W. L., Hagen, F. A.
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The promise of eutectics for aircraft turbines [PDF]
The current status of the first generation eutectics, gamma/gamma transition - delta and NiTaC-13, is described in detail. Several second generation systems, such as gamma/gamma transition - alpha and NiTaC 3-116A, gamma - beta, and COTAC 74 are also ...
Gray, H. R.
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Directionally solidified article with weld repair [PDF]
, 2003 A directionally solidified nickel-base superalloy article has a defect therein extending parallel to the solidification direction. The article is repaired by removing any foreign matter present in the defect, and then heating the article to a repair ...
Borne, Bruce L. +2 more
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