Results 11 to 20 of about 68,122 (285)

Atomic-scale grain boundary engineering to overcome hot-cracking in additively-manufactured superalloys [PDF]

Acta Materialia, 2019
There are still debates regarding the mechanisms that lead to hot cracking in parts build by additive manufacturing (AM) of non-weldable Ni-based superalloys.
Abed, Stéphane, Blandin, Jean-Jacques, Chauvet, Edouard, da Silva, Alisson Kwiatkowski, Dendievel, Rémy, Gault, Baptiste, He, Junyang, Kontis, Paraskevas, Martin, Guilhem, Peng, Zirong, Raabe, Dierk, Tassin, Catherine   +11 more
core   +4 more sources

Alloys-by-design: Application to new superalloys for additive manufacturing

Acta Materialia, 2021
New grades of γ/γ′ nickel-based superalloy for the additive manufacturing process are designed using computational approaches. Account is taken of the need to avoid defect formation via solidification and solid-state cracking.
Yuanbo T. Tang, C. Panwisawas, Joseph N. Ghoussoub, Yilun Gong, J. Clark, André A. N. Németh, D. G. McCartney, R. Reed   +7 more
semanticscholar   +1 more source

Powder bed fusion additive manufacturing of Ni-based superalloys: a review of the main microstructural constituents and characterization techniques

Journal of Materials Science, 2022
Metal additive manufacturing (AM) has unlocked unique opportunities for making complex Ni-based superalloy parts with reduced material waste, development costs, and production lead times.
M. Haines, V. Rielli, S. Primig, N. Haghdadi   +3 more
semanticscholar   +1 more source

Review of Microstructure–Mechanical Property Relationships in Cast and Wrought Ni‐Based Superalloys with Boron, Carbon, and Zirconium Microalloying Additions

Advanced Engineering Materials, 2022
Cast and wrought Ni‐based superalloys are materials of choice for harsh high‐temperature environments of aircraft engines and gas turbines. Their compositional complexity requires sophisticated thermo‐mechanical processing.
F. Theska, Wilson F. Tse, B. Schulz, R. Buerstmayr, S. Street, M. Lison-Pick, S. Primig   +6 more
semanticscholar   +1 more source

Unveiling the Re effect in Ni-based single crystal superalloys

Nature Communications, 2020
Single crystal Ni-based superalloys have long been an essential material for gas turbines in aero engines and power plants due to their outstanding high temperature creep, fatigue and oxidation resistance.
Xiaoxiang Wu, S. Makineni, C. Liebscher, G. Dehm, Jaber Rezaei Mianroodi, P. Shanthraj, B. Svendsen, David Bürger, G. Eggeler, D. Raabe, B. Gault   +10 more
semanticscholar   +1 more source

Recent Advancements in the Field of Ni-Based Superalloys

Advances in Materials Science and Engineering, 2021
In this review article, research papers related to recent developments in Ni-superalloy technologies have been reviewed in order to provide an insight into recent achievements and the potential for further study, research, and development in this field ...
S. Selvaraj, G. Sundaramali, S. Jithin Dev, R. Srii Swathish, R. Karthikeyan, K. E. Vijay Vishaal, V. Paramasivam   +6 more
semanticscholar   +1 more source

Dynamically Recrystallized Microstructures, Textures, and Tensile Properties of a Hot Worked High-Mn Steel

Metals, 2019
The deformation microstructures and mechanical properties were studied in a high-Mn steel subjected to hot compression. The deformation microstructures resulted from the development of dynamic recrystallization (DRX).
Pavel Dolzhenko, Marina Tikhonova, Rustam Kaibyshev, Andrey Belyakov   +3 more
doaj   +1 more source

Numerical Simulation of the Thermo-Mechanical Behavior of 6061 Aluminum Alloy during Friction-Stir Welding

Journal of Manufacturing and Materials Processing, 2022
In this work, a finite-element model was elaborated to simulate the thermomechanical behavior of 6061 aluminum alloy during friction-stir welding (FSW). It was shown that FSW-induced deformation is a two-stage process.
Vasiliy Mishin, Ivan Shishov, Alexander Kalinenko, Igor Vysotskii, Ivan Zuiko, Sergey Malopheyev, Sergey Mironov, Rustam Kaibyshev   +7 more
doaj   +1 more source

Tempforming as an Advanced Processing Method for Carbon Steels

Metals, 2020
The microstructural mechanisms providing delamination toughness in high-strength low-alloyed steels are briefly reviewed. Thermo-mechanical processing methods improving both the strength and impact toughness are described, with a close relation to the ...
Anastasiya Dolzhenko, Rustam Kaibyshev, Andrey Belyakov   +2 more
doaj   +1 more source

The nucleation of δ phases triggered by the stacking faults in a single crystal superalloy

Materials Research Letters, 2023
Here we investigated the nucleation of the Re, Ru-rich δ phase affected by stacking faults in the γ phase in a 4th generation Ni-based single crystal superalloy during the service at 800°C.
Yuan Cheng, Xinbao Zhao, Quanzhao Yue, Wanshun Xia, Qinghai Pan, Yu Zhou, Yuefeng Gu, Ze Zhang   +7 more
doaj   +1 more source