Microstructure and evolution of mechanically-induced ultrafine grain in surface layer of AL-alloy subjected to USSP
TLDR
In this paper, the authors investigated the UFG microstructures in the surface layer of an aluminum alloy 7075 heavily worked by ultrasonic shot peening and found that the grain subdivision into the subgrains was the main mechanism responsible for grain refinement.About:
This article is published in Acta Materialia.The article was published on 2002-05-08 and is currently open access. It has received 418 citations till now. The article focuses on the topics: Dislocation & Surface layer.read more
Citations
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Production of alloyed nanocrystalline surfaces by combined punching, sandblasting and recovery treatments
Xinhu Tang,Dongyang Li +1 more
TL;DR: In this paper, a process combining punching, sandblasting and recovery treatments (PSR) was described for synthesizing an alloyed Al-Ti nanocrystalline surface layer on an Al alloy.
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Relationship between microstructure and properties for ultrasonic surface mechanical attrition treatment
TL;DR: In this paper, the authors presented an analytic modeling and one experimental assessment of the ultrasonic surface mechanical attrition treatment. But the authors did not consider the effect of micro-cracking on the grain size.
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Formation of nanocrystalline surface of a Cu-Zn alloy under electropulsing surface treatment
Xiaoyan Du,Baoquan Wang,Jing Guo +2 more
TL;DR: In this paper, a nanocrystalline surface layer of a Cu-Zn alloy was developed by electropulsing (ECP) surface treatment, and the average grain size was about 20 nm on the top surface layer.
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Analysis of thermal properties by scanning thermal microscopy in nanocrystallized iron surface induced by ultrasonic shot peening
F.A Guo,N. Trannoy,Jian Lu +2 more
TL;DR: In this article, the thermal conductivity of nanostructured surface layer obtained by ultrasonic shot peening was studied by scanning thermal microscopy (SThM) that allows thermal conductivities to be mapped down to submicrometer scale.
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Examination of thermal properties by scanning thermal microscopy in ultrafine-grained pure titanium surface layer produced by surface mechanical attrition treatment
TL;DR: In this article, the thermal properties of pure titanium surface layer produced by surface mechanical attrition treatment (SMAT) were systematically studied by scanning thermal microscopy (SThM) that allows thermal conductivity to be mapped down to the submicrometer scale.
References
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The process of grain refinement in equal-channel angular pressing
TL;DR: In this article, experiments were conducted on high purity aluminum to investigate the process of grain refinement during equal-channel angular (ECA) pressing, where samples were subjected to 1 to 4 pressings and then sectioned for microstructural examination in three mutually perpendicular directions.
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Structure and properties of ultrafine-grained materials produced by severe plastic deformation
TL;DR: In this article, the formation of a special grain boundary phase, i.e., a thin near-boundary layer with high dynamic activity of atoms, has been found, leading to the manifestation of promising new elastic, strength, superplastic, damping and magnetic properties of UFG materials.
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Overview no. 96: Evolution of F.C.C. deformation structures in polyslip
TL;DR: In this article, the authors investigated the microstructural evolution during polyslip in f.c.m.d. metals and showed that there are differences in the number and selection of simultaneously acting slip systems among neighboring volume elements of individual grains.
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An investigation of microstructural evolution during equal-channel angular pressing
TL;DR: In this article, the development of an ultra-fine grain size during equal-channel angular (ECA) pressing of high purity aluminum with an initial grain size of ∼1.0 mm was investigated.
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