Nano-Refinement, Nano-Consolidation: Different Fabrication Routes of Nano-Crystalline Aluminium Alloys

Małgorzata Lewandowska; Henryk Dybiec; Mariusz Kulczyk; Jerzy Latuch; Krzysztof J. Kurzydlowski

doi:10.4028/www.scientific.net/MSF.667-669.87

Paper Titles

Nanostructured Dual Phase Ti-Al through Consolidation of Particles by Severe Plastic Deformation
p.63

Effect of a Special ECAP Die Configuration on Microhardness Distributions in Pure Aluminum
p.69

Finite Element Simulation of Die Design for Warm Equal Channel Angular Extrusion Process of AZ31 Alloy and its Experimental Investigation
p.75

Finite Element Simulation of Effects of Mould Angle and Friction on ECAP for AZ80 Magnesium Alloy
p.81

Nano-Refinement, Nano-Consolidation: Different Fabrication Routes of Nano-Crystalline Aluminium Alloys
p.87

Application of High-Pressure Sliding for Grain Refinement of Al and Mg Alloys
p.91

Simple Shear: Double-Stage Deformation
p.97

Severe Plastic Deformation by Equal Channel Angular Swaging
p.103

Study on the Fabrication of Nanocrystalline Copper by Explosive Dynamic Loading
p.109

HomeMaterials Science ForumMaterials Science Forum Vols. 667-669Nano-Refinement, Nano-Consolidation: Different...

Nano-Refinement, Nano-Consolidation: Different Fabrication Routes of Nano-Crystalline Aluminium Alloys

Abstract:

The aim of the present work was to compare microstructures and mechanical properties of nano-Al alloys fabricated by two different methods: (i) SPD induced grain refinement, (ii) plastic consolidation of nano-powders or nano-crystalline ribbons. SPD grain refinement has been implemented by hydrostatic extrusion, HE. The ribbons were rapidly solidified using a melt spinning methods. Plastic consolidation of powder and ribbons was conducted by warm extrusion. The results of the studies show that by applying various fabrication routes for a given chemical composition, diverse nano-structures can be obtained, which differ in terms of grain size and shape, grain boundary character and dislocation density. As a result, the alloys also differ significantly in the mechanical properties. The findings are discussed in terms of the possibilities for optimizing properties of the bulk-nano-metals.