Results 21 to 30 of about 8,845 (225)

A Yield Stress Model for a Solution-Treated Ni-Based Superalloy during Plastic Deformation

High Temperature Materials and Processes, 2018
Up to now, there are few reports on the yield behavior of Ni-based superalloy during plastic deformation. However, an accurate yield stress model is significant for simulating the plastic forming process by cellular automaton or finite element methods ...
Liu Yan-Xing, Lin Y.C
doaj   +1 more source

Achieving high-strength joining of TiAl- and Ni-based alloys at room temperature and 750 ℃ via utilizing a quinary FeCoNi-based amorphous filler

Journal of Materials Research and Technology, 2020
High content of single element in TiAl- or Ni-based brazing filler metal always causes the formation of bulk, directional and brittle intermetallics in the TiAl/Ni brazed joints, which deteriorates the joint mechanical properties.
Kewei Dong, Jian Kong, Yang Yang, Yong Peng, Qi Zhou, Kehong Wang   +5 more
doaj   +1 more source

Investigation of Microstructure and Mechanical Properties of the Repaired Precipitation-Strengthened Ni-Based Superalloy via Laser Melting Deposition

Metals, 2023
In this study, a typical γ′ phase precipitation-strengthened Ni-based superalloy DZ411 was repaired using an LMD-based repairing technique with an IN738LC superalloy, and crack-free samples were acquired.
Wengao Yan, Beirao Xue, Jinjun Li, Minghuang Zhao, Xiangde Bian   +4 more
doaj   +1 more source

Impact of the Co/Ni-Ratio on Microstructure, Thermophysical Properties and Creep Performance of Multi-Component γ′-Strengthened Superalloys

Crystals, 2020
The Ni content is a crucial factor for the development of γ′-strengthened Co-based superalloys and some studies have systematically addressed its influence on various properties in model superalloys.
Christopher H. Zenk, Nicklas Volz, Carolin Zenk, Peter J. Felfer, Steffen Neumeier   +4 more
doaj   +1 more source

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

Clean recycling of spent nickel-based single-crystal superalloy by molten magnesium

Journal of Materials Research and Technology
Nickel-based single-crystal superalloys are designed for extreme conditions due to their superior corrosion and creep resistance properties. However, these pose challenges in the subsequent recycling after reaching their end-of-life. Molten magnesium (Mg)
Hao Li, Junjie Wang, Feng Liu, Xueyi Guo, Zean Wang, Dawei Yu, Qinghua Tian   +6 more
doaj   +1 more source

Deep learning accelerates the development of Ni-based single crystal superalloys: A physical-constrained neural network for creep rupture life prediction

Materials & Design, 2023
Creep rupture life is a key target for designing Ni-based single crystal (SX) superalloys. Machine learning (ML) has the potential to accelerate alloy design by accurately predicting the creep rupture life of potential superalloys.
Fan Yang, Wenyue Zhao, Yi Ru, Yanling Pei, Shusuo Li, Shengkai Gong, Huibin Xu   +6 more
doaj   +1 more source

Microstructural aspects of fatigue in Ni-base superalloys [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
Nickel-base superalloys are primarily used as components in jet engines and land-based turbines. While compositionally complex, they are microstructurally simple, consisting of small (50–1000 nm diameter), ordered, coherent Ni3(Al,Ti)-type L12or Ni3Nb-type DO22precipitates (calledγ′andγ′′, respectively) embedded in an FCC substitutional solid solution ...
openaire   +2 more sources

Influences of stress triaxiality and forming parameters on microstructural evolution and fracture mechanisms in a Ni–Cr–Mo-based superalloy

Journal of Materials Research and Technology
Hot tensile features in a Ni–Cr–Mo-based superalloy with different notched types are explored. Changes of microstructure and fracture mechanisms with stress triaxiality and tensile parameters are elucidated. Results manifest that the maximum load for the
Daoguang He, Xiaoyang Chen, Y.C. Lin, Xintao Yan, Han Xie   +4 more
doaj   +1 more source

Isothermal Oxidation Behavior Characteristics of a Second Generation Ni-base Single Crystal Superalloy in Air at 1000 and 1100°C

International Journal of Electrochemical Science, 2012
The isothermal oxidation behavior of a second generation Ni-base single crystal superalloy was investigated in air at 1000°C and 1100°C. The microstructures of the oxide morphology and the crosssection area of the specimens after oxidation were analyzed ...
Fahamsyah H. Latief, Koji Kakehi, Xintao Fu, Yuma Tashiro   +3 more
doaj   +1 more source