Results 61 to 70 of about 489,076 (318)

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Unsupervised Texture Segmentation using Active Contours and Local Distributions of Gaussian Markov Random Field Parameters [PDF]

, 2012
In this paper, local distributions of low order Gaussian Markov Random Field (GMRF) model parameters are proposed as texture features for unsupervised texture segmentation.Instead of using model parameters as texture features, we exploit the variations ...
Michael Bennet, Chathurika Dharmagunawardhana, Mahesan Niranjan, Mahmoodi, Sasan, Bennett, Michael, Mahesan, Niranjan, Dharmagunawardhana, Chathurika, Sasan Mahmoodi   +7 more
core   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source

Quasi-in-situ observation: study on the evolution of the brass-texture in oriented silicon steel during the process of normalizing annealing

Journal of Materials Research and Technology
The presence of the brass texture ({110}) impairs the magnetic properties of oriented silicon steel. However, the mechanism governing the evolution of this texture during normalizing annealing remains unresolved.
Gengsheng Cao, Fang Zhang, Yonghui Sun, Yuhui Sha, Liang Zuo   +4 more
doaj   +1 more source

Self-adapted clustering of solute atoms into a confined two-dimensional prismatic platelet with an ellipse-like quasi-unit cell

IUCrJ, 2018
This paper reports a new structured prismatic platelet, self-assembled by an ellipse-like quasi-unit cell, precipitated in Mg–In–Yb and Mg–In–Ca ternary alloys and aged isothermally at 200°C using aberration-corrected high-angle annular dark-field ...
Hongbo Xie, Junyuan Bai, Hucheng Pan, Xueyong Pang, Yuping Ren, Shineng Sun, Liqing Wang, Hong Zhao, Boshu Liu, Gaowu Qin   +9 more
doaj   +1 more source

An unambiguous expression method of the surface texture

, 2010
The current specification and verification of surface texture in international standards are considered to be too theoretical, complex and over-elaborate for industry.
Xiangqian Jiang, Qi, Qunfen, Jiang, Xiangqian, Liu, Xiaojun, Xiaojun Liu, Paul J. Scott, Qunfen Qi, Scott, Paul J.   +7 more
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Elucidating microbial iron corrosion mechanisms with a hydrogenase‐deficient strain of Desulfovibrio vulgaris

mLife
Sulfate‐reducing microorganisms extensively contribute to the corrosion of ferrous metal infrastructure. There is substantial debate over their corrosion mechanisms.
Di Wang, Toshiyuki Ueki, Peiyu Ma, Dake Xu, Derek R. Lovley   +4 more
doaj   +1 more source

A multiscale approach to texture-based image retrieval

, 2008
This paper presents research on a robust technique for texture-based image retrieval in multimedia museum collections. The aim is to be able to use a query image patch containing a single texture to retrieve images containing an area with similar texture
Fauzi, Mohammad Faizal Ahmad, Fauzi, Mohammad Faizal Ahmed, Lewis, Paul H.   +2 more
core   +1 more source