Results 11 to 20 of about 2,044 (211)

Comparative Analysis between 5th and 6th Generation Superalloys and Previous Generation Superalloys

Advances in Materials Science and Engineering, 2022
In harsh working environments where there can be very high temperatures and heavy loads, like in the inside of the combustion chamber of a rocket, industrial gas turbines, space vehicles, and so on, a special class of material will be needed for making ...
Dev Jithin S., Senthil Kumaran Selvaraj, K. E. Vijay Vishaal, G. Sundaramali   +3 more
doaj   +1 more source

Microstructural evolution and hot cracking prevention in direct-laser-deposited Ni-based superalloy through Hf addition

Materials & Design, 2023
Additive manufacturing (AM) is an emerging new paradigm in the production of industrial parts since it allows the fabrication of near-net shape products directly from designs, which is impossible with conventional manufacturing techniques.
KenHee Ryou, Hye Ji Im, Jiwon Park, Pyuck-Pa Choi   +3 more
doaj   +1 more source

Thermodynamic modeling of the Al–Cr–Mo–Ni system

AIP Advances, 2023
The Al–Cr–Mo–Ni system is of technical interest because it is an essential system for the thermodynamic modeling of systems related to the Ni- and NiAl-based superalloys.
Jian Peng, Wei Huang, Man Xu, Shulin Wang, Zhigang Xu, Wenjun Li, Junjun Wang, Chuanbin Wang, Peter Franke, Hans J. Seifert   +9 more
doaj   +1 more source

Quantification of Solid Solution Strengthening and Internal Stresses through Creep Testing of Ni-Containing Single Crystals at 980 °C

Metals, 2021
Various alloy compositions were cast as single crystals in a Bridgman vacuum induction furnace and creep tested at 980 °C: pure Ni, the equiatomic alloys CoCrNi and CrMnFeCoNi (Cantor alloy), single-phase fcc (Ni) solid solution alloys (with the ...
Uwe Glatzel, Felix Schleifer, Christian Gadelmeier, Fabian Krieg, Moritz Müller, Mike Mosbacher, Rainer Völkl   +6 more
doaj   +1 more source

Rafting and redissolution of γʹ phase in Ni–Al alloy under external stress

Heliyon, 2023
The volume fraction and rafting degree of the γʹ-Ni3Al phase under stress and high temperature are the key characteristics of mechanical properties in Ni-based superalloys, the rafting and redissolution of γʹ phase caused by the creep at high temperature
Jiajia Chen, Shenglong Wang, Kunwu Lai, Shuaige Yang, Zhichen Geng, Keyi Lin, Peng Sang, Qingqing Qin, Yongsheng Li   +8 more
doaj   +1 more source

Microstructure, Mechanical Properties and Thermal Stability of Ni-Based Single Crystal Superalloys with Low Specific Weight

Crystals, 2023
Ni-based single crystal (SX) superalloy with low specific weight is vital for developing aero engines with a high strength-to-weight ratio. Based on an alloy system with 3 wt.% Re but without W, namely Ni-Co-Cr-Mo-Ta-Re-Al-Ti, a specific weight below 8.4
Dengyu Liu, Qingqing Ding, Qian Zhou, Dingxin Zhou, Xiao Wei, Xinbao Zhao, Ze Zhang, Hongbin Bei   +7 more
doaj   +1 more source

MGI-oriented High-throughput Measurement of Interdiffusion Coefficient Matrices in Ni-based Superalloys

Journal of Aeronautical Materials, 2017
One of the research hotspots in the field of high-temperature alloys was to search the substitutional elements for Re in order to prepare the single-crystal Ni-based superalloys with less or even no Re addition.
TANG Ying, CHEN Juan, DU Yong, ZHANG Lijun   +3 more
doaj   +1 more source

Effect of Ni content on microstructure and properties of Co-based superalloys

Journal of Aeronautical Materials, 2019
Co-based superalloys casting ingots were prepared by vacuum smelting furnaces, and the influence of Ni content on the microstructure and lattice misfit of Co-based superalloys were studied by X-ray diffraction analysis (XRD) and scanning electron ...
ZHOU Pengjie, SONG Dehang, WU Haibin, GAO Xinkang, NOBUFUMI Ueshima, KATSUNARI Oikawa   +5 more
doaj   +1 more source

The Microstructural Degradation of Ni-Based Superalloys with Segregation under the Super-Gravity Condition

Metals, 2023
The Ni-based superalloy is used as the turbine blade, which is subject to the coupling effect of temperature and super-gravity during service. As the Ni-based superalloys are difficult to become homogenous after using the solid solution heat treatment, a
Guo Yang, Hui Zhou, Xueqiao Li, Wenshuai Wang, Haibo Long, Shengcheng Mao, Ze Zhang, Xiaodong Han   +7 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 Ni 3 (Al,Ti)-type L1 2 or Ni
openaire   +2 more sources