Results 41 to 50 of about 24,512 (259)

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

Research progress in application of nickel-based single crystal superalloy/thermal barrier coating system

Cailiao gongcheng
In the pursuit of achieving a superior thrust-to-weight ratio and service reliability for advanced aero engines， increasingly stringent requirements are continually imposed on the material and process selection for turbine blades.
LIU Yanfei, ZHONG Yan, TAO Xipeng, TIAN Wei, GUO Huiming, LIANG Wei   +5 more
doaj   +1 more source

Effects of Hold Time on the Elevated Temperature Fatigue Crack Growth Behavior of Alloy 247LC‐DS

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT Creep–fatigue crack growth (CFCG) experiments were performed at 850°C and 950°C on nominally 12.70‐mm‐thick compact‐type specimens of alloy 247LC‐DS, a Ni‐base superalloy. The loading cycles consisted of trapezoidal waveforms with hold times of 2 and 20 min at the maximum force.
Zachary B. Towner, Santosh B. Narasimhachary, Phillip W. Gravett, Richard W. Neu, Christopher L. Muhlstein, Ashok Saxena   +5 more
wiley   +1 more source

Research progress in inertia friction welding of nickel-based superalloys

Cailiao gongcheng
Nickel-based superalloys are widely used in high-temperature turbine components of aviation engines， and inertia friction welding （IFW） is widely used for the connection of nickel-based superalloy disc and shaft due to its solid-phase bonding property ...
MA Xiaopeng, XU Yaxin, LI Wenya
doaj   +1 more source

The Effect of Superalloy Structure on Ultrasonic Wave Parameters

Fatigue of Aircraft Structures, 2015
This paper analyses the nickel based superalloy Inconel 713C casts typically used in high and low pressure turbines of aircraft engines. The ingots were manufactured in the Research and Development Laboratory for Aerospace Materials at the Rzeszów ...
Nawrocki Jacek, Gancarczyk Kamil, Manaj Wojciech, Albrecht Robert, Cygan Rafał, Krupa Krzysztof   +5 more
doaj   +1 more source

A Review on Cracking in Laser Additive Manufacturing of Nickel‐Based Superalloys: Types, Formation Mechanisms, and Suppression Strategies

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Nickel‐based superalloys (Ni‐based superalloys) have attracted extensive attention in laser additive manufacturing (LAM) due to their capability to directly fabricate complex and high‐performance structural components. However, the rapid melting and solidification inherent to LAM result in intense thermal cycling, which induces high residual ...
Tianxiang Lin, Ciying Li, Hongkai Zhou, Rui Chen, Yi Li, Can Cui, Lizhang Zhang, Maoyuan Li, Zhenzhong Wang, Wei‐Wei Xu   +9 more
wiley   +1 more source

Metallurgical Aspects in the Welding of Clad Pipelines—A Global Outlook

Applied Sciences, 2019
In the present work, the metallurgical changes in the welding of clad pipelines are studied. Clad pipes consist of a complex multi-material system, with (i) the clad being stainless steel or a nickel-based superalloy, (ii) the pipe being API X60 or X65 ...
Ivan Bunaziv, Vigdis Olden, Odd M. Akselsen   +2 more
doaj   +1 more source

Direct Laser Fabrication of a Gas Turbine Engine Component - Microstructure and Properties - Part I [PDF]

, 1998
This paper presents the development of a new technique for the production of abrasive turbine blade tips by direct laser processing. This superalloy cermet component is an integral part of the low pressure turbine sealing system in a demonstrator ...
Beaman, Joseph J., Bourell, David L., Danyo, Gregory, Das, Suman, E. Brown, Lawrence, P. Fuesting, Timothy, Sargent, Kathleen   +6 more
core   +1 more source

Navigating the Ethereal Tightrope: The Nanogenerator Manipulates Neurons for Immune Equilibrium

Advanced Science, Volume 13, Issue 14, 9 March 2026.
This review explores how nanogenerators modulate neuroimmune responses, offering innovative strategies for treating neurological disorders. By interfacing with neural pathways, they enable precise control of immune activity, especially via vagus nerve stimulation.
Jia Du, Rui Deng, Ya Wu, Hong‐Xia Ren, Zong‐Hong Lin, Yang‐Bao Miao   +5 more
wiley   +1 more source