Effect of Copper Addition and Artificial Ageingon Mechanical Behaviour of Al-6061 Alloy
The work has been done for comparative study of mechanical behavior of age hardened and non-heat treated Al6061-Copper alloy. Four compositions of Al6061 with varying percentage of copper 2.9 %, 3.8 %, 4.5 % and 5.3 % has been die casted. Strontium and titanium have been added for grain refinement....
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Published in | Materials today : proceedings Vol. 18; pp. 2656 - 2661 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
2019
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Subjects | |
Online Access | Get full text |
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Summary: | The work has been done for comparative study of mechanical behavior of age hardened and non-heat treated Al6061-Copper alloy. Four compositions of Al6061 with varying percentage of copper 2.9 %, 3.8 %, 4.5 % and 5.3 % has been die casted. Strontium and titanium have been added for grain refinement. For Each composition two samples have been casted out of which one subjected to age hardening and other kept non heat treated. It has been found that tensile strength decreased from 2.9 wt% to 5.3 wt% copper for heat treated specimens. Maximum strength has been found for age hardened sample with 2.9 % of copper, which was 340 MPa with 3.1% elongation. This high value of strength of age hardened sample with 2.9 wt% has been found due to formation of precipitate of Al2Cu over grain boundaries hindering the movement of dislocation. |
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ISSN: | 2214-7853 2214-7853 |
DOI: | 10.1016/j.matpr.2019.07.126 |