Subjects
-Tags
Production Engineering and Mechanical Design
Abstract
The function of severe plastic deformation (SPD) rate during equal-channel angular pressing (ECAP) on the thermal and mechanical characteristics of the aluminum alloy 6030 are experimentally investigated. ECAP was carried out at room temperature onto refining grain size for Al- 6030 of square cross-section specimens. The tests show that, for decreasing the rate of strain from 0.016 to 0.0023 s-1, the improvement in the hardness increases gradually until the highest value is reached at the rate of strain 0.004 s-1and decreases after that gradually. The percentage improvement in the hardness is around 68 % at the rate of strain 0.004 s-1. The ECAP process improves the yield strength of aluminum alloy 6030 by 222 % on average at the rate of strain 0.004 s-1. Also, for decreasing the rate of strain from 0.016 to 0.0023 s-1 the thermal conductivity increases gradually to the maximum value 137.5 W/m° K at rate of strain 0.004 s-1and decrease after that gradually. The ECAP process improves the thermal conductivity by 4.88 % for the rate of strain 0.004 s-1 as compared to the case without ECAP process. From the present experimental results, the optimum rate of strain is 0.004 s-1 to obtain the optimal thermal and mechanical properties of the aluminum alloy 6030 during the ECAP processing.
DOI
10.21608/bfemu.2021.208215
Keywords
ECAP, Al-6030, hardness, Strain rate, Thermal conductivity, Optimum properties
Authors
Affiliation
Assistant Professor of Production Engineering and Mechanical Design Department, Faculty of Engineering, Tanta University
Email
dr.maherrashad@f-eng.tanta.edu.eg
Orcid
https://orcid.org/00
MiddleName
-Affiliation
Assistant Professor of Production Engineering and Mechanical Design Department, Faculty of Engineering, Tanta University, Egypt
Email
dr.nadernabil@f-eng.tanta.edu.eg
Orcid
-MiddleName
-Affiliation
Professor of Mechanical Power Engineering Department, Faculty of Engineering, Tanta University, Egypt and Faculty of Engineering, Delta University for Science and Technology, Egypt
Orcid
-Link
https://bfemu.journals.ekb.eg/article_208215.html
Detail API
https://bfemu.journals.ekb.eg/service?article_code=208215
Publication Title
MEJ. Mansoura Engineering Journal
Publication Link
https://bfemu.journals.ekb.eg/
MainTitle
-