Results 61 to 70 of about 617,177 (261)

Constitutive modelling of single crystal and directionally solidified superalloys [PDF]

The trend towards improved engine efficiency and durability places increasing demands on materials that operate in the hot section of the gas turbine engine.
Jordan, E. H., Walker, K. P.
core   +4 more sources

Study on the salt-corrosion and oxidation role mechanism of Ni-based single crystal superalloy in the long-term hot corrosion environment

Journal of Materials Research and Technology
Hot corrosion is one of the key factors affecting the long-term service of Ni-based single crystal superalloys. In this paper, the long-term hot corrosion test of a second-generation Ni-based single crystal superalloy was carried out in a high ...
Y.Q. Yang, L. Yang, Y.C. Zhao, H.Q. Pei, Z.X. Wen, Y.C. Zhou   +5 more
doaj   +1 more source

On the effect of Ti on Oxidation Behaviour of a Polycrystalline Nickel-based Superalloy [PDF]

, 2018
Titanium is commonly added to nickel superalloys but has a well-documented detrimental effect on oxidation resistance. The present work constitutes the first atomistic-scale quantitative measurements of grain boundary and bulk compositions in the oxide ...
Bagot, P. A. J., Galindo-Nava, E., Hardy, M. C., Moody, M. P, Parr, I. M. D., Pedrazzini, S., Rowlands, B. S., Stone, H. J., Turk, A.   +8 more
core   +1 more source

Influence of Environment on Creep Properties of MC2 Single Crystal Superalloy at 1150°C [PDF]

, 2004
In order to reveal the effect of oxidation on thin blade walls, a new machine allowing tests up to 1250°C under controlled atmosphere has been designed.
Andrieu, Eric, Crabos, Fabrice, Dryepondt, Sébastien, Monceau, Daniel, Vernault, Cyril   +4 more
core   +1 more source

Substitution of Ti by Nb in Maraging Steel: Effects on Strengthening Mechanisms and Crystallographic Behavior

steel research international, EarlyView.
This work demonstrates that replacing Ti with Nb in maraging steel forms nanoscale Nb–Mo particles along boundaries, strengthening the alloy without relying on Ti phases. Heat‐treatment tuning promotes uniform crystal orientation and balanced grain boundaries, enabling strong yet ductile behavior.
Mohamad Masoumi, Manoel José, Gerardo Jesus Aracena Pérez, Isabel Ferreira Barros, Marcos Natan da Silva Lima, Geronimo Perez, Samuel Lucas Santos Medeiros, Pedro Henrique Pinheiro Lima, Luís Flávio Gaspar Herculano, Maria Vittoria Moraschini Reis, Sérgio Souto Maior Tavares, Farina Alexandre Bellegard, Fridman Daniel Pallos, Miloslav Béreš, Hamilton Ferreira Gomes de Abreu   +14 more
wiley   +1 more source

Creep-fatigue interactions in equiaxed and single crystal Ni-base superalloys

MATEC Web of Conferences, 2014
Ni-base superalloys are employed as structural materials for the most critical hot gas path components of gas turbines. The current market requirement is to cycle the machine every day, providing energy when it is most needed.
Vacchieri E., Costa A., Riva A., Poggio E., Holdsworth S.R.   +4 more
doaj   +1 more source

Quantification of growth kinetics and adherence of oxide scales formed on Ni-based superalloys at high temperature [PDF]

, 2010
Cyclic and isothermal oxidation behaviors of first and fourth-generation superalloys AM1 and MCNG were investigated to evaluate the ability of the scratch test to quantify the adhesion of multi-layered oxide scales. Effects of sulfur content and of scale
Fedorova, Elena, Monceau, Daniel, Oquab, Djar   +2 more
core   +2 more sources

Ultrahigh Strength with Suppressed Flow Instability at Liquid Helium Temperature via Coherent Nanoprecipitation in a Medium‐Entropy Alloy

Advanced Functional Materials, Volume 36, Issue 10, 2 February 2026.
It is demonstrated that severe lattice distortion and coherent nanoprecipitates overcome the strength–ductility dilemma and mitigate discontinuous plastic flow (DPF) at 4.2 K. Such microstructural design enhances both thermal and athermal stress components, leading to exceptional mechanical performance.
Min Young Sung, Tae Jin Jang, Sang Yoon Song, Chang‐Gi Lee, Jun Ho Lee, Young‐Kyun Kim, Sang‐Ho Oh, Byeong‐Joo Lee, Alireza Zargaran, Se‐Ho Kim, Young‐Sang Na, Seok Su Sohn   +11 more
wiley   +1 more source

Twinning-induced shear fracture of sub-micrometer Ni-based single-crystal superalloys at 900°C

Materials Research Letters
Topologically close-packed (TCP) precipitates and deformation twins significantly impact the high-temperature performances of Ni-based single-crystal (SC) superalloys. However, their contributions to failure of superalloys remain unclear.
Zhe Hong, Lingyi Kong, Xinbao Zhao, Xingpu Zhang, Huajie Yang, Jiangwei Wang, Ze Zhang   +6 more
doaj   +1 more source

Microstructure-property relationships in directionally solidified single crystal nickel-base superalloys [PDF]

Some of the microstructural features which influence the creep properties of directionally solidified and single crystal nickel-base superalloys are discussed.
Mackay, R. A., Nathal, M. V.
core   +1 more source