Results 61 to 70 of about 16,474,783 (283)

Microstructure and mechanical properties at different length scales and strain rates of nanocrystalline tantalum produced by high-pressure torsion

, 2011
Fully dense, nanocrystalline tantalum (average grain size as small as similar to 40 nm) has been processed for the first time by high-pressure torsion. High-resolution transmission electron microscopy reveals non-equilibrium grain boundaries and grains ...
Kecskes LJ, Wei, Q (reprint author), Univ N Carolina, Dept Mech Engn & Engn Sci, 9201 Univ City Blvd, Charlotte, NC 28223 USA, Wei Q, Pan ZL, 武晓雷, Schuster BE, Valiev RZ   +6 more
core   +1 more source

New AI‐Assisted Approach for Expanding the Solution Space: Application to Lattice Structure Design

Advanced Engineering Materials, EarlyView.
This work introduces an innovative framework for designing structured materials by ex panding the design space through reparameterization of qualitative variables into continuous structural descriptors. Combined with machine‐learning‐based prediction and multi‐objective optimization, the approach enables the discovery of novel lattice architectures ...
G. H. Gahimbare, Y. Beideler, D. Chune, R. De Guio, T. Roland, H. Chibane   +5 more
wiley   +1 more source

A method for in situ SEM fracture studies of brittle materials using the double torsion technique : application to nuclear graphite [PDF]

, 2011
This work concerned the design and development of a miniature double torsion (DT) testing rig, for use inside the chamber of a scanning electron microscope, to perform in situ loading studies of brittle materials using the DT fracture mechanics specimen.
Rosie, Kathryn A
core   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

Advanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ, Jörg Hohe, Martin Kördel, Michael Giese, Niklas Toffert, Christian Seidel, Olaf Rehme, Patrik Schneider, Oliver Focke, Elie Abi Aoun, Claas Falldorf, Beñat Gutierrez, Alexandra Kühn, Sven Torstrick-von der Lieth, Christoph Herden, Erik Johannsen, Jan‐Uwe R. Schmidt, Felix Winkelmann, Andreas Schott, Daniel Schott   +19 more
wiley   +1 more source

Crystallization of Cu60Zr20Ti20 bulk metallic glass by high pressure torsion

Reviews on Advanced Materials Science, 2019
Bulk metallic glass of Cu60Zr20Ti20 composition has been synthesized by copper mold casting. Slices of the as-cast glass has been subjected to severe plastic deformation by high-pressure torsion for different whole turns.
Révész Ádám, Horváth András, Ribárik Gábor, Schafler Erhard, Browne David J., Kovács Zsolt   +5 more
doaj   +1 more source

Examining the microhardness evolution and thermal stability of an Al–Mg–Sc alloy processed by high-pressure torsion at a high temperature

Journal of Materials Research and Technology, 2017
An Al–3% Mg–0.2% Sc alloy was solution treated and processed through 10 turns of high-pressure torsion (HPT) at 450 K. Afterwards, the HPT-processed alloy was annealed for 1 h at temperatures ranging from 423 to 773 K and its mechanical properties
Pedro Henrique R. Pereira, Yi Huang, Terence G. Langdon   +2 more
doaj   +1 more source

Compositional, mechanical and transport properties of carbonate fault rocks and the seismic cycle in limestone terrains: A case study of surface exposures on the Longmenshan Fault, Sichuan, China [PDF]

, 2015
Destructive earthquakes are common in tectonically active regions dominated by carbonate cover rocks. The catastrophic Wenchuan earthquake that struck Sichuan, China, also affected a section of carbonate cover terrain.
Chen, Jianye, CSC: Wenchuan Earthquake: "high angle, thrust earthquake"- requiring high pore pressure, Experimental rock deformation   +2 more
core  

Microstructural evolution in pure aluminum in the early stages of processing by high-pressure torsion

, 2009
Measurements were taken to evaluate the evolution of homogeneity in disks of high-purity aluminum in the early stages of processing by high-pressure torsion.
Cheng Xu, Xu C, Xu, Chenggang, Langdon, Terence G., Terence G. Langdon, Horita Z, Langdon TG, Zenji Horita, Horita, Zenji   +8 more
core   +1 more source

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

Advanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz, Jonas Fell, Hendrik Jost, Stefan Diebels, Hans‐Georg Herrmann   +4 more
wiley   +1 more source

Effects on hardness and microstructure of AISI 1020 low-carbon steel processed by high-pressure torsion

Journal of Materials Research and Technology, 2017
Low-carbon steel AISI 1020 was subjected to high-pressure torsion (HPT) with 6.0 GPa pressure through 1/4–5 turns. The microstructures of the samples in each turn were studied by means of X-ray diffraction (XRD) analyzing the changes in micro-strain ...
Diana Maritza Marulanda Cardona, Jittraporn Wongsa-Ngam, Hernando Jimenez, Terence G. Langdon   +3 more
doaj   +1 more source