Results 71 to 80 of about 657,951 (302)

Scaling Behaviour and Complexity of the Portevin-Le Chatelier Effect

, 2006
The plastic deformation of dilute alloys is often accompanied by plastic instabilities due to dynamic strain aging and dislocation interaction. The repeated breakaway of dislocations from and their recapture by solute atoms leads to stress serrations and
A. SARKAR, Baird J. D., Brindley B. J., Cottrell A. H., Cottrell A. H., Gnedenko B. V., Le Chatelier F., Mandelbort B. B., Masson A. M., P. BARAT, Pincus S. M., Pink E., Portevin A., Richman J. S., Savart F.   +14 more
core   +1 more source

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

Advanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin, Samson Dare Oguntuyi, Peter Apata Olubambi   +2 more
wiley   +1 more source

Effect of Elastic and Plastic Strain on Corrosion Behavior of X90 Pipeline Steel

Liaoning Shiyou Huagong Daxue xuebao
The effect of elastic and plastic strain on corrosion behavior of X90 pipeline steel in a simulated marine alternating dry/wet environment was investigated by means of slow strain rate tensile test, in?situ electrochemical measurement, scanning electron ...
Songyuan BAI, Dongxu SUN, Ming WU
doaj   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Investigation on shakedown response-behavior of thawed subgrade soils under long-term traffic loading

Frontiers in Earth Science
The shakedown state of the subgrade is crucial for the sustainable design and long-term stability evaluation of pavement structures. In order to characterize the plastic deformation and shakedown behavior of subgrade soil in seasonal frozen regions ...
Shujian Wang, Xiangyang Li, Yanzheng Ti, Xiaoning Zhang, Tao Yin, Ruibing Wang, Xiufeng Jiang, Zhikai Su, Jianwen Hao   +8 more
doaj   +1 more source

Plastic damage evolution in structural steel and its non-destructive evaluation

Journal of Materials Research and Technology, 2020
This paper reports the plastic damage evolution in low carbon structural steel and its NDT evaluation. The SEM observations reveal that the voids initiation, growth, coalescence, micro-crack propagation, and macro-crack formation are the main failure ...
Xiao Wang, Jian-Guo Chen, Guo-feng Su, Hua-Ying Li, Chuang Wang   +4 more
doaj   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

A New Unified Solution for Circular Tunnels Based on Generalized SMP Criterion considering the Strain Softening and Dilatancy

Advances in Civil Engineering, 2019
According to the strain-softening characteristics of rock mass, an ideal elastic strain-softening model is developed, and the surrounding rock of tunnels is subdivided into the plastic broken zone, plastic strain-softening zone, and elastic zone.
Qifeng Guo, Jiliang Pan, Xinghui Wu, Xun Xi, Meifeng Cai   +4 more
doaj   +1 more source

Topology Optimization of Elastoplastic Behavior Conditions by Selectively Suppressing Plastic Work

Mathematics, 2020
This work conducted topology optimization with an implicit analysis of elastoplastic constitutive equation in order to design supporting structures for unexpected heavy loading conditions.
Eun-Ho Lee, Tae-Hyun Kim
doaj   +1 more source

Self-affine surface morphology of plastically deformed metals

, 2004
We analyze the surface morphology of metals after plastic deformation over a range of scales from 10 nm to 2 mm, using a combination of atomic force microscopy and scanning white-light interferometry.
B. Mandelbrot, Elias C. Aifantis, Frederic Madani Grasset, H. Neuhauser, J. Diehl, J. Diehl, Michael Zaiser, T. Kleiser, Vasileios Koutsos   +8 more
core   +1 more source