The Influence of Age Hardening and Shot Peening on the Surface Properties of 7075 Aluminium Alloy
| Autor: | Sebastjan Žagar, Iztok Naglič, Roman Šturm, Boštjan Markoli |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
površinska hrapavost
Technology Materials science Alloy mikrotrdota chemistry.chemical_element 02 engineering and technology engineering.material Shot peening 01 natural sciences Indentation hardness Article Precipitation hardening Residual stress Aluminium udarno utrjevanje 0103 physical sciences Surface roughness aluminum alloy 7075 General Materials Science Composite material 010302 applied physics Microscopy QC120-168.85 udc:620.1:669.715(045) QH201-278.5 021001 nanoscience & nanotechnology Engineering (General). Civil engineering (General) aluminijeva zlitina 7075 zaostale napetosti TK1-9971 chemistry 7075 aluminium alloy Descriptive and experimental mechanics residual stresses surface roughness engineering microhardness shot peening Electrical engineering. Electronics. Nuclear engineering TA1-2040 0210 nano-technology |
| Zdroj: | Materials, Vol 14, Iss 2220, p 2220 (2021) Materials Volume 14 Issue 9 Materials, vol. 14, no. 9, 2220, 2021. |
| ISSN: | 1996-1944 |
| Popis: | The present study investigates the effect of shot peening (SP) on the mechanical properties and surface roughness of 7075 aluminum alloy during different stages and conditions of heat treatment. The mechanical properties were determined by measuring Vickers microhardness profiles and residual stress profiles, while the amount of alloying elements present in the solid solution of the samples under different heat treatment conditions was determined by measuring the electrical conductivity. The results show that the increase in microhardness near the SP surface and the maximum compressive residual stresses are mainly related to the content of alloying elements in the solid solution. Surface roughness increases with increasing SP Almen intensity, and samples with the highest microhardness and residual stresses have the lowest surface roughness. |
| Databáze: | OpenAIRE |
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