diplomsko delo Visokošolskega strokovnega študijskega programa I. stopnje Strojništvo - Projektno aplikativni program
Abstract
Aluminijeve zlitine serije 7xxx zaradi svoje nizke mase in visoke trdnosti predstavljajo veliko vlogo v letalski in transportni industriji. V tem delu je obravnavana aluminijeva zlitina 7075, katere mehanske lastnosti smo dodatno izboljšali z izločevalnim utrjevanjem. Staranje smo izvedli pri treh različnih temperaturah (105 ▫$^°$▫C, 120 ▫$^°$▫C in 140 ▫$^°$▫C) ter različnih časih. Rezultate toplotne obdelave smo analizirali na podlagi spremembe trdote, električne prevodnosti in korozijske odpornosti. Izločene faze v mikrostrukturi smo na koncu ovrednotili še z metalografsko analizo s pomočjo svetlobnega optičnega mikroskopa.
Keywords
diplomske naloge;aluminijeva zlitina 7075;izločevalno utrjevanje;trdota;korozija aluminija;električna prevodnost;mikrostruktura;
Data
| Language: |
Slovenian |
| Year of publishing: |
2025 |
| Typology: |
2.11 - Undergraduate Thesis |
| Organization: |
UL FS - Faculty of Mechanical Engineering |
| Publisher: |
[B. Malavašič] |
| UDC: |
621.785.7:669.715:620.18(043.2) |
| COBISS: |
248439043
|
| Views: |
62 |
| Downloads: |
4 |
| Average score: |
0 (0 votes) |
| Metadata: |
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Other data
| Secondary language: |
English |
| Secondary title: |
Precipitation hardening of aluminum alloy 7075 |
| Secondary abstract: |
Aluminium alloys of the 7xxx series, due to their low density and high strength, play a significant role in the aerospace and transportation industries. This study focuses on the aluminium alloy 7075, whose mechanical properties were further enhanced through precipitation hardening. Ageing was conducted at three different temperatures (105 ▫$^°$▫C, 120 ▫$^°$▫C and 140▫$^°$▫C) and for various durations. The effects of the heat treatment were evaluated based on changes in hardness, electrical conductivity and corrosion resistance. Finally, the precipitated phases in the microstructure were characterised through metallographic examination using an optical light microscope. |
| Secondary keywords: |
thesis;aluminum alloy 7075;precipitation hardening;hardness;aluminum corrosion;electrical conductivity;microstructure; |
| Type (COBISS): |
Bachelor thesis/paper |
| Study programme: |
0 |
| Thesis comment: |
Univ. v Ljubljani, Fak. za strojništvo |
| Pages: |
XX, 48 str. |
| ID: |
27349196 |