Dislocations in solids
About:
This article is published in Acta Crystallographica Section A.The article was published on 1989-07-01 and is currently open access. It has received 345 citations till now.read more
Citations
More filters
Journal ArticleDOI
The conflicts between strength and toughness
TL;DR: This work focuses on the interplay between the mechanisms that individually contribute to strength and toughness, noting that these phenomena can originate from very different lengthscales in a material's structural architecture.
Journal ArticleDOI
Strong crystal size effect on deformation twinning
TL;DR: A ‘stimulated slip’ model is developed to explain the strong size dependence of deformation twinning in crystals, and the sample size in transition is relatively large and easily accessible in experiments, making the understanding of size dependence relevant for applications.
Journal ArticleDOI
Atomistic modeling of interfaces and their impact on microstructure and properties
Yuri Mishin,Mark Asta,Ju Li +2 more
TL;DR: An overview of the most recent developments in the area of atomistic modeling with emphasis on interfaces and their impact on microstructure and properties of materials is given in this paper, along with some challenges and future research directions in this field.
Journal ArticleDOI
A review on fundamental of high entropy alloys with promising high–temperature properties
TL;DR: In this paper, the microstructures of HESAs consisting of γ and γ′ phases are similar to that of Ni-base superalloys and refractory HEAs.
Journal ArticleDOI
Heterostructured materials: superior properties from hetero-zone interaction
Yuntian Zhu,Kei Ameyama,Peter M. Anderson,Irene J. Beyerlein,Huajian Gao,Hyoung Seop Kim,Enrique J. Lavernia,Suveen N. Mathaudhu,Haël Mughrabi,Robert O. Ritchie,Nobuhiro Tsuji,Xiangyi Zhang,Xiaolei Wu +12 more
Abstract: Heterostructured materials are an emerging class of materials with superior performances that are unattainable by their conventional homogeneous counterparts. They consist of heterogeneous zones wi...
References
More filters
Posted Content
Unified Framework for Dislocation-Based Defect Energetics
TL;DR: In this article, a unified framework for the calculation of defect energies for those defects that can be represented as a superposition of isolated dislocations, and obtain both self and interaction energies of combinations of grain boundaries and cracks, was presented.
Journal ArticleDOI
The effect of surface steps on the critical thickness for spreading of threading dislocations in thin epitaxial films
TL;DR: In this paper, anisotropic elastic and elastic inhomogeneity effects are considered in terms of the critical thickness concept of an epitaxial thin film, and the authors show that the presence of a properly aligned surface step can strongly influence the motion of a threading dislocation, enhancing or retarding its motion.
Journal ArticleDOI
Modeling the complexity of acoustic emission during intermittent plastic deformation: Power laws and multifractal spectra.
Jagadish Kumar,G. Ananthakrishna +1 more
TL;DR: This work sets up a wave equation for the elastic degrees of freedom with a plastic strain rate as a source term and predicts power-law statistics for all the acoustic emission signals associated with the three types of Portevin-Le Chatelier bands with the exponent values increasing with increasing strain rate.
Detection of helium bubble formation at fcc-bcc interfaces using neutron reflectometry
TL;DR: The U.S. Dept. of Energy's Office of Basic Energy Sciences (Center for Materials in Irradiation and Mechanical Extremes) as discussed by the authors presented the LANL 1026 award for the first time.
Journal ArticleDOI
Physical and Mechanical Properties of Co3(Al,W) with the L12 Structure in Single and Polycrystalline Forms
TL;DR: The properties of Co3(Al,W) with the L12 structure have been investigated both in single and polycrystalline forms as discussed by the authors, and the results of all the independent single-crystal elastic constants were determined by resonance ultrasound spectroscopy at liquid helium temperature.