Results 31 to 40 of about 1,905 (201)

Kinetics and Mechanisms of γ' Reprecipitation in a Ni-based Superalloy. [PDF]

Sci Rep, 2016
AbstractThe reprecipitation mechanisms and kinetics of γ′ particles during cooling from supersolvus and subsolvus temperatures were studied in AD730TM Ni-based superalloy using Differential Thermal Analysis (DTA). The evolution in the morphology and distribution of reprecipitated γ′ particles was investigated using Field Emission Gun Scanning Electron ...
Masoumi F, Shahriari D, Jahazi M, Cormier J, Devaux A.   +4 more
europepmc   +5 more sources

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

Mapping the evolution of hierarchical microstructures in a Ni-based superalloy [PDF]

Nature Communications, 2013
Phase separation of γ' precipitates determines the microstructure and mechanical properties of nickel-based superalloys. In the course of ageing, disordered γ spheres form inside ordered (L12) γ' precipitates, undergo a morphological change to plates and finally split the γ' precipitates.
Florian, Vogel, Nelia, Wanderka, Zoltan, Balogh, Mohammed, Ibrahim, Patrick, Stender, Guido, Schmitz, John, Banhart   +6 more
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

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

Selective Extraction of Ni from Superalloy Scraps by Molten Mg-Zn

Metals, 2021
Bearing significant concentrations of high value and critical metals, superalloy scraps require comprehensive recycling for metal reclamation. In this study, nickel-based superalloy was treated with molten Mg-Zn for the selective extraction of nickel ...
Qinghua Tian, Xiangdong Gan, Fuhui Cui, Dawei Yu, Xueyi Guo   +4 more
doaj   +1 more source

On Crystal Mosaicity in Single Crystal Ni-Based Superalloys [PDF]

Crystals, 2019
In the present work, we investigate the evolution of mosaicity during seeded Bridgman processing of technical Ni-based single crystal superalloys (SXs). For this purpose, we combine solidification experiments performed at different withdrawal rates between 45 and 720 mm/h with advanced optical microscopy and quantitative image analysis.
Philipp Hallensleben, Felicitas Scholz, Pascal Thome, Helge Schaar, Ingo Steinbach, Gunther Eggeler, Jan Frenzel   +6 more
openaire   +3 more sources

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

The Formation Mechanism of Oxide Inclusions in a High-Aluminum Ni-Based Superalloy during the Vacuum Induction Remelting Process

Metals
Oxide inclusions in Ni-based superalloys play a crucial role in determining their mechanical properties, oxidation resistance, and corrosion resistance at high temperatures.
Lihui Zhang, Erkang Liu, Weijie Xing, Zhaojiang Xue, Wenjie Fan, Yunsong Zhao, Yushi Luo, Changchun Ge, Min Xia   +8 more
doaj   +1 more source