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
More filters
Journal ArticleDOI
Influence of high-energy shot peening on the microstructure and mechanical properties of Ti-6Al-4V welded joints
TL;DR: In this article, the structural characteristics of the Ti-6Al-4V welded joints were investigated by optical microscopy (OM) and X-ray diffraction (XRD).
Journal ArticleDOI
Effect of surface nanosizing on the wear and corrosion resistance of β-type titanium alloy TB11
Li Shi,Fuquan Tu,Tuo Jiang +2 more
TL;DR: In this paper , the surface layer of TB11 was nanocrystallized by repeated mechanical hammering, and the microstructure, hardness, wear and corrosion results of the samples with different hammering times were compared.
Journal ArticleDOI
Surface Alloying of Nanocrystalline Fe-0.45 wt Pct C Alloy Subjected to Surface Mechanical Attrition Treatment Within Cr Powders
TL;DR: In this paper, a Fe-0.45% C alloy plate was subjected to surface mechanical attrition treatment (SMAT) in a camber filled with Cr powder and a nanocrystalline surface layer containing Cr element was produced d...
Journal ArticleDOI
Surface Property Enhancement of UNS N07718 and G41400 by Ultrasonic Impact Treatment
TL;DR: In this article, ultrasonic impact treatment is applied to surface harden two oilfield alloys, UNS N07718, a premium alloy with satisfactory oilfield performance but occasionally lacking surface hardness and abrasive wear resistance, and UNS G41400, a comparatively low-cost alloy restricted by its corrosion fatigue limit in oilfield rotating equipment.
References
More filters
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI