Results 1 to 10 of about 10,228 (247)

Effect of long-term thermal exposure on microstructure and creep properties of DD5 single crystal superalloy [PDF]

China Foundry, 2021
The effect of thermal exposure on the microstructure and creep properties of the Ni-based single crystal superalloy in different test conditions was studied.
Xu-dong Wang, Zhong Yang, Qiang Gao
doaj   +1 more source

Segregation-Assisted Plasticity in Ni-Based Superalloys [PDF]

Metallurgical and Materials Transactions A, 2018
Abstract Correlative high-resolution transmission electron microscopy and energy-dispersive X-ray spectroscopy are used to study deformation-induced planar faults in the single-crystal superalloy MD2 crept at 800 °C and 650 MPa. Segregation of Cr and Co at microtwins, anti-phase boundaries (APB), and complex/superlattice extrinsic and ...
Barba Cancho, D, Smith, T, Miao, J, Mills, M, Reed, R   +4 more
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Microstructure and mechanical properties of wide gap brazing joint of the third-generation nickel-based single crystal superalloy

Journal of Aeronautical Materials, 2021
In this study, the third-generation rhenium containing single crystal superalloy was brazed by mixed powder filler, in which the mixed powder filler was consisted of nickel-based powder filler and the superalloy powder with the same composition of the ...
LI Kexin, HOU Xingyu, WANG Shiyang, SUN Yuan, CHEN Lijia, CHENG Lufan, WANG Zhenjiang, LI Hansong, TANG Guangquan   +8 more
doaj   +1 more source

Crack initiation in a Ni-base superalloy [PDF]

Scripta Metallurgica, 1987
Oxide d ispers ion s t r e n g t h e n i n g (ODS) has been success fu l ly combined with -f' precipi ta t ion ha rden ing in the superal loy MA 6000. The development of MA 6000 is s t rong ly connected with new process ing techniques . The direct ional solidification process is used to produce columnar grains whereas ODS is a product of powder ...
INTVELD, AJH, DEHOSSON, JTM, Huis in't Veld, A.J.   +2 more
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Stress corrosion of Ni-based superalloys [PDF]

Materials at High Temperatures, 2017
AbstractThe development of gas turbines to increase fuel efficiency is resulting in progressively higher operating temperatures in the under platform regions of the blades. These regions have traditionally been considered low risk areas. However, higher metal temperatures combined with stresses and the deposition of contaminants from the cooling air ...
Brooking, Laurie, Sumner, Joy, Gray, Simon, Simms, Nigel   +3 more
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Surface oxidation characteristics of nickel-base superalloy GH4169 powder

Journal of Aeronautical Materials, 2020
The effect of temperature on surface oxidation characteristics of nickel-base superalloy GH4169 powder was investigated by field emission scanning electron microscope (FE-SEM)，energy-dispersive spectroscopy (EDS)，X-ray photoelectron spectroscopy (XPS ...
Zhang Lichong, Xu Wenyong, Li Zhou, Wang Shuangxi, Shen Jiankun, Zheng Liang, Zhang Guoqing   +6 more
doaj   +1 more source

EBSD Study of Delta-Processed Ni-Based Superalloy [PDF]

Metals, 2020
Nickel-based superalloys are extensively used in the aerospace and power generation industries due to their excellent mechanical properties at elevated temperatures and good corrosion resistance. Typically, these alloys require accomplishing critical standards during their manufacturing process. In this study, an Inconel 718 (IN718) Ni-based superalloy
Pedro Jacinto Páramo Kañetas, Jessica Calvo, Pablo Rodriguez-Calvillo, José María Cabrera Marrero, Marco Antonio Zamora Antuñano, Martha Patricia Guerrero-Mata   +5 more
openaire   +4 more sources

Influence of thermal exposure on microstructural stability and tensile properties of a new Ni-base superalloy

Journal of Materials Research and Technology, 2022
The influence of long-term thermal exposure on microstructure evolution and tensile behavior of a new wrought γ′-hardened Ni-base superalloy at different temperatures are investigated.
Hao Liu, Xinbao Zhao, Yong Yuan, Yingying Dang, Weiqi Li, Jiachen Xu, Yuan Cheng, Quanzhao Yue, Yuefeng Gu, Ze Zhang   +9 more
doaj   +1 more source

Anisotropic Oxidation Resistance in a Ni-Base Single Crystal Superalloy

International Journal of Electrochemical Science, 2015
A study on the anisotropic oxidation resistance in a Ni-base single crystal superalloy was investigated at 1000 °C. Overall, the specimens with (100) face showed a higher oxidation rate compared with the specimens with (110) face.
Fahamsyah H. Latief, Nashmi H. Alrasheedi   +1 more
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Ni–W diffusion barrier: Its influence on the oxidation behaviour of a β-(Ni,Pt)Al coated fourth generation nickel-base superalloy [PDF]

, 2009
A Ni–W base diffusion barrier (DB) has been developed to limit interdiffusion between a fourth generation Ni-base superalloy (MCNG) and a Pt-modified nickel aluminide bondcoat. After long term oxidation, the DB layer permits to reduce the Al depletion in
Bacos, Marie-Pierre, Cavaletti, Eric, Josso, Pierre, Mercier, Stéphane, Monceau, Daniel, Naveos, Serge   +5 more
core   +2 more sources