Open AccessAnalysis of the reciprocal wear testing of Aluminum AA1050 processed by a novel mechanical nanostructuring technique
Author(s) -
Babak Omranpour,
Lembit Kommel,
Fjodor Sergejev,
Julia Ivanisenko,
Maksim Antonov,
M.A.L. Hernández-Rodríguez,
E. García-Sánchez
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1140/1/012051
Subject(s) - materials science , indentation hardness , severe plastic deformation , shearing (physics) , electron backscatter diffraction , extrusion , torsion (gastropod) , plasticity , composite material , wear resistance , aluminium , metallurgy , microstructure , medicine , surgery
This research aims to investigate the impact of a novel technique in mechanical nanostructuring on the wear resistance of materials. This technique with the name of High Pressure Torsion Extrusion (HPTE) can produce bulk nanostructured materials with enhanced mechanical properties. Results of microstructural analysis and microhardness testing showed significant enhancement in materials after HPTE. Microstructural characterization by using Electron Back-Scattered Diffraction (EBSD) method illustrated the presence of Ultra-Fine Grained (UFG) materials in the specimens Analysis of the wear by implementing reciprocal wear testing revealed that the amount of displaced volume markedly decreased after processing. This change in the wear behavior can be explained by referring to the hardness increase and the reduction of plasticity in materials which confined the plastic shearing and diminished the built-up edge around the wear track.