Results 41 to 50 of about 65,098 (295)

Effects of Ti and N Contents on the Characteristic Evolution and Thermal Stability of MC Carbonitrides Holding at 1250 °C in H13 Die Steel

Metals
The evolution of MC-type primary carbonitrides (M=V, Ti, Mo; C=C, N) in terms of morphology, quantity, size and composition was systematically investigated in commercial H13 die steels with different Ti and N contents during thermal holding at 1250 °C ...
Xiaolin Sun, Shengyong Gao, Wulin Shang, Qingyuan Zhong, Gaoyang Song, Shuo Zhao   +5 more
doaj   +1 more source

Heat treatment for superalloy [PDF]

, 1987
A cobalt-free nickel-base superalloy composed of in weight % 15 Cr-5 Mo-3.5 Ti-4 Al-0.07 (max) C-remainder Ni is given a modified heat treatment.
Harf, Fredric H.
core   +1 more source

Substrate Effect on the High Temperature Oxidation Behavior of a Pt-modified Aluminide Coating. Part II: Long-term Cyclic-oxidation Tests at 1,050 C [PDF]

, 2007
This second part of a two-part study is devoted to the effect of the substrate on the long-term, cyclic-oxidation behavior at 1,050 C of RT22 industrial coating deposited on three Ni-base superalloys (CMSX-4, SCB, and IN792).
B. A. Pint, B. Gleeson, C. C. Jia, D. Oquab, Daniel Monceau, F. A. Golightly, G. Fisher, G. M. Kim, H. E. Evans, H. Hindam, H. M. Hindam, J. Angenete, J. C. Yang, J. D. Kuenzly, J. L. Smialek, J. M. N’Gandu Muamba, L. Rivoaland, M. Bobeth, M. W. Brumm, N. Vialas, Nadia Vialas, V. K. Tolpygo, Y. Zhang   +22 more
core   +3 more sources

Phenomenological and Physically Based Modeling of Flow Stress and Strengthening Mechanism of Inconel 718

Advanced Engineering Materials, EarlyView.
Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein, Oliver Schenk, Christoph Broeckmann   +2 more
wiley   +1 more source

Challenges and underlying causes associated with the hot deformation of as-cast GH4975 superalloy

Journal of Materials Research and Technology
In this study, the challenges and underlying causes associated with the hot deformation of the as-cast GH4975 superalloy are analyzed in detail.
Yushuo Li, Yanwu Dong, Zhouhua Jiang, Hongxu Kuang, Fengxiang Zhang, Liang Li, He Xu   +6 more
doaj   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Influences of Post-Heat Treatment on the Microstructure Evolution and Creep Properties of Ni-Based Superalloy IN718 Fabricated by Electron Beam Melting

Metals, 2022
In this study, the Ni-based superalloy IN718, fabricated using an electron beam melting process, was investigated in as-built and various heat-treated conditions.
Thaviti Naidu Palleda, Santhosh Banoth, Yen-Ling Kuo, Koji Kakehi   +3 more
doaj   +1 more source

Directional solidification of superalloys [PDF]

, 1990
This invention relates to the directional solidification of superalloys, in particular nickel-based superalloys, by imposition of a predetermined temperature profile in the solidification front and, depending on the desired results, a predetermined rate ...
Alter, Wendy Sue, Hamilton, William David, Schmidt, Deborah Diane   +2 more
core   +1 more source

Deformation compatibility in a single crystalline Ni superalloy [PDF]

, 2015
Deformation in materials is often complex and requires rigorous understanding to predict engineering component lifetime. Experimental understanding of deformation requires utilization of advanced characterization techniques, such as high spatial ...
Britton, T, Dunne, F, Jiang, J, Zhang, T
core   +2 more sources

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source