Results 121 to 130 of about 375,639 (295)

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

A Bearingless PM Synchronous Machine with a Zero- Sequence Current Driven Star Point-Connected Active Magnetic Thrust Bearing

, 2018
Common cylindrical bearingless drives require a separate thrust bearing, which is fed by a DC supply. Here, a technique is presented, which enables the feeding of the thrust bearing by an artificially generated zero-sequence current between the two ...
Dietz, Daniel, Binder, Andreas
core   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Zero-sequence voltage elimination for dual fed common dc-link open-end winding PMSM high speed starter-generator, part II: dead time hysteresis control of zero sequence current

, 2019
In a common dc link dual-fed Open-End Winding Permanent Magnet Synchronous Motor (OEW-PMSM) topology it is well known how the additional flow of a Zero-Sequence Current (ZSC) is permitted.
Formentini, Andrea, Cox, Tom, Zanchetta P., Formentini A., Calzo G. L., Rovere, Luca, Rovere L., Cox T., Lo Calzo G., Lo Calzo, Giovanni, Zanchetta, Pericle   +10 more
core   +1 more source

Calculation and comparison of inductances of zero-sequence current flow circuits in autotransformer filters

, 2009
Рассмотрены методы расчета индуктивностей цепей протекания токов нулевой последовательности в автотрансформаторных фильтрах при бифилярной и концентрической намотке проводников обмоток.
Пентегов, И.В., Безручко, В.М., Рымар, С.В.   +2 more
core   +2 more sources

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

The Impact of the Power Transformer Connections on the Flow of Zero Sequence Current

Al-Rafidain Engineering Journal (AREJ), 2023
Mohammad Al juboori, Mohammed Ali Alrawe, Yousif Younus   +2 more
openaire   +1 more source

PASTA‐ELN: Simplifying Research Data Management for Experimental Materials Science

Advanced Engineering Materials, EarlyView.
Research data management faces ongoing hurdles as many ELNs remain complex and restrictive. PASTA‐ELN offers an open‐source, cross‐platform solution that prioritizes simplicity, offline access, and user control. Its in tuitive folder structure, modular Python add‐ons, and open formats enable seamless documentation, FAIR data practices, and easy ...
S. Brinckmann, G. Winkens, R. Schwaiger
wiley   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Analysis of Electric Leakage Fault of Mine Multi-level Power Supply Network and Its Detectio

Gong-kuang zidonghua, 2012
The paper analyzed fault components at the electric leakage moment of isolated neutral power supply system and power supply network connected to earth through an arc suppression coil, and got electrical characteristics of fault point.
LV Liang-jun, JIANG Jin-feng, WANG Wen-ji   +2 more
doaj