Results 111 to 120 of about 44,196 (307)

Micrometre-scale plasticity size effects in metals and ceramics: theory and experiment.

, 2009
PhDThis thesis comprises studies of size effects in the plasticity of metals and ceramics at length scales of the order of micrometres and includes both experimental work and theoretical development. Experimental results are presented for foil flexure
Zhu, Tingting
core  

Numerical Modeling of Scale Dependent Mechanical Properties of Metal Polycrystals [PDF]

, 2007
Movement of dislocations and their interaction with grain boundaries during yielding process of metal polycrystals are numerically simulated . Simulation results show that when the size of FR source is close to grain diameter, the resolved shear stress ...
Ohashi, Tetsuya, Hussein, M. Zbib
core   +1 more source

Plastic Deformation of Crystals [PDF]

Nature, 1955
Dislocations and Plastic Flow in Crystals By Prof. A. H. Cottrell. (International Series of Monographs on Physics.) Pp. x + 223 + 8 plates. (Oxford: Clarendon Press; London: Oxford University Press, 1953.) 25s. net.
openaire   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

Crystal Plasticity

Crystal ...
  +5 more sources

Crystal plasticity analysis of tensile plastic behavior and damage mechanisms of additive manufactured TiAl alloy under elevated temperatures

Journal of Materials Research and Technology
A crystal plasticity model based on Electron Backscatter Diffraction (EBSD) experimental data has been developed to simulate the tensile behavior of additively manufactured TiAl alloys at various temperatures.
Hao Wu, Yida Zhang, Tongfei Zou, Quanyi Wang, Hong Zhang, Tianjian Wang, Yongjie Liu, Liming Lei, Qingyuan Wang   +8 more
doaj   +1 more source

Deformation behavior and anisotropic response of 2060 Al-Cu-Li alloy: experimental investigation and computational homogenization-based crystal plasticity modeling

Journal of Materials Research and Technology, 2019
Since AA2060-T8 was launched the past few years, it was crucial to understand the deformation behavior and to establish a multi-scale model that can link the microstructural state of this alloy with its mechanical behavior.
Ali Abd El-Aty, Shi-Hong Zhang, Yong Xu, Sangyul Ha   +3 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source