Indentation and scratch testing of coarse-grained and ultrafine-grained AA6063

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019 Pub Date : 2019-11-19 DOI:10.1063/1.5131968

A. Filippov, S. Tarasov

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Abstract

Deformation behavior of coarse- and ultrafine-grained 6063 aluminum alloy ECAPed samples in indentation and scratching has been investigated. The specificity of ultrafine-grained samples was formation of pile-ups on the indentation and scratch groove edges, whose height was greatly higher than those on the coarse-grained samples. Despite the fact that the ultrafine-grained samples had their microhardness numbers higher than those of coarse-grained, the scratch grooves were deeper on the first ones.Deformation behavior of coarse- and ultrafine-grained 6063 aluminum alloy ECAPed samples in indentation and scratching has been investigated. The specificity of ultrafine-grained samples was formation of pile-ups on the indentation and scratch groove edges, whose height was greatly higher than those on the coarse-grained samples. Despite the fact that the ultrafine-grained samples had their microhardness numbers higher than those of coarse-grained, the scratch grooves were deeper on the first ones.

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粗晶和超细晶AA6063的压痕和划痕试验

研究了粗晶和超细晶6063铝合金eced试样在压痕和划痕中的变形行为。超细粒样品的特异性是在压痕和划痕沟槽边缘形成堆积，其高度大大高于粗粒样品。尽管超细晶试样的显微硬度值高于粗晶试样，但前者的划痕槽更深。研究了粗晶和超细晶6063铝合金eced试样在压痕和划痕中的变形行为。超细粒样品的特异性是在压痕和划痕沟槽边缘形成堆积，其高度大大高于粗粒样品。尽管超细晶试样的显微硬度值高于粗晶试样，但前者的划痕槽更深。

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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019

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