Cargando…
Effect of Aging Heat Treatment on Wear Behavior and Microstructure Characterization of Newly Developed Al7075+Ti Alloys
In this study, Al7075+0%Ti-, Al7075+2%Ti-, Al7075+4%Ti-, and Al7075+8%Ti-reinforced alloys were prepared by melting processes using Al7075 and Al-10%Ti main alloys. All newly produced alloys were subjected to T6 aging heat treatment and some samples were cold rolled at 5% beforehand. The microstruct...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10301197/ https://www.ncbi.nlm.nih.gov/pubmed/37374595 http://dx.doi.org/10.3390/ma16124413 |
_version_ | 1785064755294109696 |
---|---|
author | Nama, Hamza A. H. Abo Esen, İsmail Ahlatcı, Hayrettin Karakurt, Volkan |
author_facet | Nama, Hamza A. H. Abo Esen, İsmail Ahlatcı, Hayrettin Karakurt, Volkan |
author_sort | Nama, Hamza A. H. Abo |
collection | PubMed |
description | In this study, Al7075+0%Ti-, Al7075+2%Ti-, Al7075+4%Ti-, and Al7075+8%Ti-reinforced alloys were prepared by melting processes using Al7075 and Al-10%Ti main alloys. All newly produced alloys were subjected to T6 aging heat treatment and some samples were cold rolled at 5% beforehand. The microstructure, mechanical behavior, and dry-wear behavior of the new alloys were examined. Dry-wear tests of all alloys were carried out at a total sliding distance of 1000 m, at a sliding speed of 0.1 m/s, and under a load of 20 N. In the hardness measured after T6 aging heat treatment, the peak hardness of the Al7075+0%Ti-, Al7075+2%Ti-, Al7075+4%Ti-, and Al7075+8%Ti-reinforced alloys was found to be 105.63, 113.60, 122.44, and 140.41 HB, respectively. The secondary phases formed by the addition of Ti to the Al7075 alloy acted as precipitate-nucleation sites during aging heat treatment, further increasing the peak hardness. Compared to the peak hardness of the unrolled Al7075+0%Ti alloy, the increase in the peak hardness of the unrolled and rolled Al7075+8%Ti-reinforced alloys was 34% and 47%, respectively, and this difference in the increase was due to the change in the dislocation density with cold deformation. According to the dry-wear test results, the wear resistance of the Al7075 alloy increased by 108.5% with a reinforcement of 8% Ti. This result can be attributed to the formation of Al, Mg, and Ti-based oxide films during wear, as well as the precipitation hardening, the secondary hardening with acicular and spherical Al(3)Ti phases, the grain refinement, and solid-solution-hardening mechanisms. |
format | Online Article Text |
id | pubmed-10301197 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-103011972023-06-29 Effect of Aging Heat Treatment on Wear Behavior and Microstructure Characterization of Newly Developed Al7075+Ti Alloys Nama, Hamza A. H. Abo Esen, İsmail Ahlatcı, Hayrettin Karakurt, Volkan Materials (Basel) Article In this study, Al7075+0%Ti-, Al7075+2%Ti-, Al7075+4%Ti-, and Al7075+8%Ti-reinforced alloys were prepared by melting processes using Al7075 and Al-10%Ti main alloys. All newly produced alloys were subjected to T6 aging heat treatment and some samples were cold rolled at 5% beforehand. The microstructure, mechanical behavior, and dry-wear behavior of the new alloys were examined. Dry-wear tests of all alloys were carried out at a total sliding distance of 1000 m, at a sliding speed of 0.1 m/s, and under a load of 20 N. In the hardness measured after T6 aging heat treatment, the peak hardness of the Al7075+0%Ti-, Al7075+2%Ti-, Al7075+4%Ti-, and Al7075+8%Ti-reinforced alloys was found to be 105.63, 113.60, 122.44, and 140.41 HB, respectively. The secondary phases formed by the addition of Ti to the Al7075 alloy acted as precipitate-nucleation sites during aging heat treatment, further increasing the peak hardness. Compared to the peak hardness of the unrolled Al7075+0%Ti alloy, the increase in the peak hardness of the unrolled and rolled Al7075+8%Ti-reinforced alloys was 34% and 47%, respectively, and this difference in the increase was due to the change in the dislocation density with cold deformation. According to the dry-wear test results, the wear resistance of the Al7075 alloy increased by 108.5% with a reinforcement of 8% Ti. This result can be attributed to the formation of Al, Mg, and Ti-based oxide films during wear, as well as the precipitation hardening, the secondary hardening with acicular and spherical Al(3)Ti phases, the grain refinement, and solid-solution-hardening mechanisms. MDPI 2023-06-15 /pmc/articles/PMC10301197/ /pubmed/37374595 http://dx.doi.org/10.3390/ma16124413 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Nama, Hamza A. H. Abo Esen, İsmail Ahlatcı, Hayrettin Karakurt, Volkan Effect of Aging Heat Treatment on Wear Behavior and Microstructure Characterization of Newly Developed Al7075+Ti Alloys |
title | Effect of Aging Heat Treatment on Wear Behavior and Microstructure Characterization of Newly Developed Al7075+Ti Alloys |
title_full | Effect of Aging Heat Treatment on Wear Behavior and Microstructure Characterization of Newly Developed Al7075+Ti Alloys |
title_fullStr | Effect of Aging Heat Treatment on Wear Behavior and Microstructure Characterization of Newly Developed Al7075+Ti Alloys |
title_full_unstemmed | Effect of Aging Heat Treatment on Wear Behavior and Microstructure Characterization of Newly Developed Al7075+Ti Alloys |
title_short | Effect of Aging Heat Treatment on Wear Behavior and Microstructure Characterization of Newly Developed Al7075+Ti Alloys |
title_sort | effect of aging heat treatment on wear behavior and microstructure characterization of newly developed al7075+ti alloys |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10301197/ https://www.ncbi.nlm.nih.gov/pubmed/37374595 http://dx.doi.org/10.3390/ma16124413 |
work_keys_str_mv | AT namahamzaahabo effectofagingheattreatmentonwearbehaviorandmicrostructurecharacterizationofnewlydevelopedal7075tialloys AT esenismail effectofagingheattreatmentonwearbehaviorandmicrostructurecharacterizationofnewlydevelopedal7075tialloys AT ahlatcıhayrettin effectofagingheattreatmentonwearbehaviorandmicrostructurecharacterizationofnewlydevelopedal7075tialloys AT karakurtvolkan effectofagingheattreatmentonwearbehaviorandmicrostructurecharacterizationofnewlydevelopedal7075tialloys |