Erosive Wear Behavior of Forged AA7075 under Different Temper Conditions

GÜVEN E. A.

Journal of Materials Engineering and Performance, vol.33, no.1, pp.442-450, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 1
  • Publication Date: 2024
  • Doi Number: 10.1007/s11665-023-08571-4
  • Journal Name: Journal of Materials Engineering and Performance
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Applied Science & Technology Source, Aquatic Science & Fisheries Abstracts (ASFA), Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.442-450
  • Keywords: 7075, Al2O3, aluminum forging, heat treatment, particle erosion
  • Kocaeli University Affiliated: Yes

Abstract

Aluminum alloy 7075 exhibits excellent mechanical properties and is used in many applications as structural parts under different temper conditions. These parts could be subjected to erosive media in their service life. For this reason, the erosion resistance and tempering conditions of 7075 alloy are of interest to many researchers. In this study, the erosion behavior of forged 7075 under different hardening conditions was investigated. Erosion particles of Al2O3 with 120 mesh (110-130 μm) were used for the tests. The images of SEM and optical microscope and profilometer were analyzed. The effects of morphology and wear mechanism were clarified. The test results show that T4 temper condition has a moderate hardness, but the lowest erosive resistance. Although T0 has moderate erosive resistance, it has the lowest hardness. T6 condition has the best results in both erosive resistance and hardness. Because of the formation of fine, coherent precipitates within the aluminum matrix, these precipitates can act as obstacles to dislocation movement, increasing the material's resistance to deformation and erosion.