Results 51 to 60 of about 95,623 (260)

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

Advanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat, D. Anjaria, I. Woo, C. Bean, D. Texier, J. C. Stinville   +5 more
wiley   +1 more source

Magnetic pressure and shape of ferrofluid seals in cylindrical structures [PDF]

Journal of Applied Physics, 2009
This paper presents a three-dimensional analytical model for studying the shape and the pressure of ferrofluid seals in totally ironless structures. This three-dimensional analytical approach is based on the exact calculation of the magnetic field components created by ring permanent magnets whose polarizations are either radial or axial.
Ravaud, Romain, Lemarquand, Guy, Lemarquand, Valérie   +2 more
openaire   +3 more sources

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

QUALITY OF CYLINDRICAL SURFACES AT PROCESSING IN DRIVER MACHINE-TOOL ADAPTATIONS [PDF]

Научно-технический вестник Брянского государственного университета, 2018
In the article studies were conducted to determine the influence of the structural parameters of the drive devices on the accuracy and productivity of the treatment. At the same time, the accuracy of processing is understood as the deviation of the shape
Erokhin V.V.
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

High precision and consistent machining of cylindrical rollers using ceramic lapping plates with both-sides machining method

Journal of Materials Research and Technology
To address the issue of rapid wear and loss of shape accuracy in traditional both-sides lapping plates, which limits the further application of both-sides machining for high-precision cylindrical rollers, an extremely high precision and consistent ...
Tianchen Zhao, Kaiping Feng, Luguang Guo, Binghai Lyu, Weifeng Yao, Junkai Ding, Julong Yuan   +6 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

新型齿轮传动副建模及接触分析

Jixie chuandong, 2013
Based on the analysis of the generating mechanism for cylindrical gears with curvilinear shape teeth,a new way of such gear modeling for manufacture is proposed.Adopting the secondary development of UG and the approach of gear blank rolling feed and gear
唐锐, 张敬东, 张祺
doaj  

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Maintenance Maneuver Automation for an Adapted Cylindrical Shape TEC

Energies, 2016
Several manufacturers have developed devices with which to harness tidal/current power in areas where the depth does not exceed 40 m. These are the so-called first generation Tidal Energy Converters (TEC), and they are usually fixed to the seabed by ...
Rafael Morales, Lorenzo Fernández, Eva Segura, José A. Somolinos   +3 more
doaj   +1 more source