The influence of age hardening and shot peening on the surface properties of 7075 aluminium alloy

Žagar, Sebastjan (avtor), Markoli, Boštjan (avtor), Naglič, Iztok (avtor), Šturm, Roman (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: aluminum alloy 7075, shot peening, microhardness, residual stresses, surface roughness
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo ; NTF - Naravoslovnotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: 11 str.
• Številčenje: Vol. 14, iss. 9, art. 2220
• PID: 20.500.12556/RUL-126855
• UDK: 620.1:669.715(045)
• ISSN pri članku: 1996-1944
• DOI: 10.3390/ma14092220
• COBISS.SI-ID: 62013443
• Datum objave v RUL: 06.05.2021

Gradivo je del revije

• Naslov: Materials
• Skrajšan naslov: Materials
• Založnik: MDPI
• ISSN: 1996-1944
• COBISS.SI-ID: 33588485

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 01.05.2021

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: aluminijeva zlitina 7075, udarno utrjevanje, mikrotrdota, zaostale napetosti, površinska hrapavost

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0270
• Naslov: Proizvodni sistemi, laserske tehnologije in spajanje materialov