Results 71 to 80 of about 99,986 (279)

The Effect of Nb/Ti Ratio on Hardness in High-Strength Ni-Based Superalloys

Metals, 2017
The age-hardening behaviour and microstructure development of high strength Ni-based superalloys ABD-D2, D4, and D6 with varying Nb/Ti ratios have been studied.
Hiromu Hisazawa, Yoshihiro Terada, Fauzan Adziman, David J. Crudden, David M. Collins, David E.J. Armstrong, Roger C. Reed   +6 more
doaj   +1 more source

A Novel γ′-Strengthened Nickel-Based Superalloy for Laser Powder Bed Fusion

Materials, 2020
An experimental printable γ′-strengthened nickel-based superalloy, MAD542, is proposed. By process optimization, a crack-free component with less than 0.06% defect was achieved by laser powder bed fusion (LPBF).
Jinghao Xu, H. Gruber, R. Lin Peng, J. Moverare   +3 more
semanticscholar   +1 more source

Deformable Eutectic Alloy With Near‐Theoretical Yield Strength via Hierarchical Nanoscale Multiphases and Sessile Defects

Advanced Science, EarlyView.
A CoCrFeNiTa0.4 eutectic high‐entropy alloy achieves a near‐theoretical yield strength of 2.6 GPa with 13.6% plasticity. This breakthrough stems from a hierarchical nanostructure (FCC‐Laves lamellae with L12/D022 precipitates), which alleviates the inter‐phase modulus/hardness mismatch through synergistic strengthening and toughening, guiding the ...
Yusha Luo, Qianqian Wang, Bo Sun, Ruixin Sheng, Zhijun Guo, Gaopeng Zou, Zhe Jia, Yang Tong, Gang Sha, Peter K. Liaw, Baolong Shen   +10 more
wiley   +1 more source

Evaluation of Hot Workability of Nickel-Based Superalloy Using Activation Energy Map and Processing Maps

Materials, 2020
The stress-strain curves for nickel-based superalloy were obtained from isothermal hot compression tests at a wide range of deformation temperatures and strain rates. The material constants and deformation activation energy of the investigated superalloy
O. Lypchanskyi, T. Śleboda, K. Zyguła, A. Łukaszek-Sołek, M. Wojtaszek   +4 more
semanticscholar   +1 more source

Effect of solution cooling rates on microstructure and mechanical properties of K648 high chromium superalloy additive-manufactured by the extreme high-speed laser metal deposition

Journal of Materials Research and Technology, 2023
High chromium superalloy K648, additive-manufactured by extreme high-speed laser metal deposition (EHLMD) process, was heat treated by solution and then cooled at different cooling rates achieved by different conditions in this study.
Kaiming Wang, Wei Liu, Yuxiang Hong, Dong Du, Baohua Chang, Yonggang Tong, Yongle Hu, Xixi Ji, Jiang Ju   +8 more
doaj   +1 more source

Molten pool flow behavior and influencing factors in electron beam selective melting of IN738 superalloy [PDF]

, 2023
Yihui Zhang, Xuewei Fang, Wannian Zhang, Wenhua Guo, Zhixiang Wang, Jiyuan Zhao   +5 more
openalex   +1 more source

Inverse Design of Alloys via Generative Algorithms: Optimization and Diffusion within Learned Latent Space

Advanced Intelligent Discovery, EarlyView.
This work presents a novel generative artificial intelligence (AI) framework for inverse alloy design through operations (optimization and diffusion) within learned compact latent space from variational autoencoder (VAE). The proposed work addresses challenges of limited data, nonuniqueness solutions, and high‐dimensional spaces.
Mohammad Abu‐Mualla, Ellis Crabtree, Fredrick Michael, Yayue Pan, Jida Huang   +4 more
wiley   +1 more source

Research on vacuum-electromagnetic casting of IN100 superalloy ingots

Science and Technology of Advanced Materials, 2007
In order to improve the inner quality of superalloy master alloy ingots, the new technology of superalloy vacuum-electromagnetic casting, i.e. applying electromagnetic stirring (EMS) to the solidification process of superalloy vacuum casting was ...
Wenzhong Jin, Tingju Li and Guomao Yin
doaj  

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

Upsampling DINOv2 Features for Unsupervised Vision Tasks and Weakly Supervised Materials Segmentation

Advanced Intelligent Systems, EarlyView.
Feature from recent image foundation models (DINOv2) are useful for vision tasks (segmentation, object localization) with little or no human input. Once upsampled, they can be used for weakly supervised micrograph segmentation, achieving strong results when compared to classical features (blurs, edge detection) across a range of material systems.
Ronan Docherty, Antonis Vamvakeros, Samuel J. Cooper   +2 more
wiley   +1 more source