Results 81 to 90 of about 10,456 (224)
Materials Research LettersThe occurrence of recrystallization will greatly decrease the service life of superalloy blades. The dynamic recrystallization of a Ni-based single crystal superalloy under supergravity stress and high temperature was studied. When tested at 950 °C, only
Wenshuai Wang +8 more
doaj +1 more source
Cailiao gongcheng, 2019 Two bicrystal specimens containing high angle grain boundary (about 20 degrees) were prepared by seed crystal method. The effect of Hf on the as-cast, heat-treated grain boundary microstructure, composition and stress rupture properties under 1100 ...
ZHAO Yun-song +8 more
doaj +1 more source
Fatigue behavior of a single-crystal superalloy [PDF]
A single-crystal superalloy, PWA 1480 is under consideration as a replacement material for the turbine blades of the high pressure fuel turbopump (HPFTP) of the space shuttle main engine (SSME).
Kalluri, Sreeramesh, Mcgaw, Michael A.
core +1 more source
Materials for advanced rocket engine turbopump turbine blades [PDF]
A study program was conducted to identify those materials that will provide the greatest benefits as turbine blades for advanced liquid propellant rocket engine turbines and to prepare technology plans for the development of those materials for use in ...
Chandler, W. T.
core +1 more source
Controlling crystal orientation of Ni-based single crystal superalloy by inclined seeding method
Cailiao gongchengAn inclined seeding method for Ni-based single crystal superalloy with a specific orientation is presented. The evolution of solidification microstructure and its mechanism are studied during the preparation of single crystals by this method through ...
YANG Shuai +6 more
doaj +1 more source
Effect of C Content on Microstructure of Second Generation Single Crystal Superalloy
Journal of Aeronautical Materials, 2017 The single crystal superalloy with different C contents was casted using master alloy of DD6 in the directionally solidified furnace. The effect of C content on the microstructure of the second generation single crystal superalloy was investigated.
LIU Shizhong, SHI Zhenxue, LI Jiarong
doaj +1 more source
Isothermal and bithermal thermomechanical fatigue behavior of a NiCoCrAlY-coated single crystal superalloy [PDF]
Specimens of single crystal PWA 1480 with group of zone axes (100) orientation, bare, or with NiCoCrAlY coating PWA 276, were tested in low cycle fatigue (LCF) at 650, 870, and 1050 C, and in simplified bithermal thermomechanical fatigue (TMF) tests ...
Gabb, T. P., Gayda, J., Miner, R. V.
core +1 more source
The Effect of Superalloy Structure on Ultrasonic Wave Parameters
Fatigue of Aircraft Structures, 2015 This paper analyses the nickel based superalloy Inconel 713C casts typically used in high and low pressure turbines of aircraft engines. The ingots were manufactured in the Research and Development Laboratory for Aerospace Materials at the Rzeszów ...
Nawrocki Jacek +5 more
doaj +1 more source
The influence of primary and secondary orientations on the elastic response of a nickel-base single-crystal superalloy [PDF]
The influence of primary orientation on the elastic response of a (001)-oriented nickel-base single-crystal superalloy, PWA 1480, was investigated under mechanical, thermal, and combined thermal and mechanical loading conditions using finite element ...
Abdul-Aziz, Ali +2 more
core +1 more source
Journal of Materials Research and TechnologyThe manufacturing of single-crystal superalloy blades consistently aims to avoid grain boundary defects that compromise crystal integrity. Although slivers represent a significant type of grain boundary defect, their formation mechanisms remain ...
Chao Zhang +8 more
doaj +1 more source