Journal ArticleDOI
Plastic strain-induced grain refinement in the nanometer scale in a Mg alloy
TLDR
In this article, the strain-induced grain refinement process in AZ91D alloy includes three steps, at the initial stage twinning dominates the plastic deformation and divides the coarse grains into finer twin platelets, with increasing strain, double twins and stacking faults form and a number of dislocation slip systems are activated.About:
This article is published in Acta Materialia.The article was published on 2007-02-01. It has received 317 citations till now. The article focuses on the topics: Slip (materials science) & Crystal twinning.read more
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Deformation twinning in nanocrystalline materials
TL;DR: In this paper, a review of deformation twinning in nanocrystalline materials is presented, including deformation twins observed by molecular dynamics simulations and experiments, twinning mechanisms, factors affecting the twinning, analytical models on the nucleation and growth of deformations, interactions between twins and dislocations, and the effects of twins on mechanical and other properties.
Journal ArticleDOI
Revealing the relationship between grain size and corrosion rate of metals
TL;DR: In this paper, a review of the pertinent literature combined with the authors' works reveals that a relationship exists between corrosion rate and grain size and reveals an important fundamental relationship that can be exploited for material durability and design.
Journal ArticleDOI
Grain refinement mechanism of multiple laser shock processing impacts on ANSI 304 stainless steel
Jin Zhon Lu,Kaiyu Luo,Yong Kang Zhang,Sun Guifang,Y.Y. Gu,Jianzhong Zhou,Xu Dong Ren,Xian-Cheng Zhang,Ling Feng Zhang,K.M. Chen,C.Y. Cui,Y.F. Jiang,A.X. Feng,Lai-Chang Zhang +13 more
TL;DR: In this article, the micro-structural evolution and grain refinement in ANSI 304 stainless steel subjected to multiple laser shock processing (LSP) impacts were investigated by means of cross-sectional optical microscopy and transmission electron microscopy observations.
Journal ArticleDOI
Effect of grain size on corrosion of high purity aluminium
TL;DR: In this article, the authors evaluate how variation in grain size and processing impact the corrosion resistance of high purity aluminium and find that a Hall-Petch type relationship may exist for corrosion rate and grain size.
Journal ArticleDOI
Design of magnesium alloys with controllable degradation for biomedical implants: From bulk to surface.
TL;DR: Recent progress is reviewed on how to control the degrdation rate based on the relevant corrosion mechanisms through the design of porous structure, phase structure, grains, and amorphous structure as well as surface modification, which will be beneficial to the better understanding and functional design of Mg-based scaffolds for wide clinical applications in tissue reconstruction in near futures.
References
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Book
X-ray diffraction procedures for polycrystalline and amorphous materials
Harold P. Klug,Leroy Alexander +1 more
Journal ArticleDOI
Bulk nanostructured materials from severe plastic deformation
TL;DR: In this article, the authors present methods of severe plastic deformation and formation of nanostructures, including Torsion straining under high pressure, ECA pressing, and multiple forging.
Journal ArticleDOI
Slip, twinning, and fracture in hexagonal close-packed metals
TL;DR: The role of deformation twinning in fracture of hexagonal close-packed metals is reviewed from a theoretical point of view in this paper, where strength and ductility are correlated with the intrinsic physical and metallurgical variables.
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Correlation of plastic deformation and dynamic recrystallization in magnesium alloy ZK60
TL;DR: In this paper, the mechanisms of deformation and dynamic recrystallization in a Mg-5.8% Zn-0.65% Zr alloy were studied by compression tests at temperatures between 423 and 723 K and at strain rates ranging from 10−5 to 10−1 s−1.
Journal ArticleDOI
An investigation of surface nanocrystallization mechanism in Fe induced by surface mechanical attrition treatment
TL;DR: A grain refinement mechanism induced by plastic deformation during the SMA treatment in Fe was proposed in this article, which involves formation of dense dislocation walls (DDWs) and dislocation tangles (DTs) in original grains and in the refined cells under further straining.