MECHANICAL AND CORROSION BEHAVIOUR OF IRON MODIFIED Cu-Zn-Al ALLOYS

The mechanical and corrosion behaviour of iron modified Cu-Zn-Al alloys has been investigated. Cu-Zn-Al alloys containing 20 and 25 wt. % Zn was produced by casting method with and without the addition of 0.1wt. % iron. The alloys were subjected to a homogenization – cold rolling- annealing treatmen...

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Main Authors: Kenneth K. Alaneme, Ayoola A. Sulaimon, Peter A. Olubambi
Format: Article
Language:English
Published: SciCell s.r.o. 2013-12-01
Series:Acta Metallurgica Slovaca
Subjects:
Online Access:https://journals.scicell.org/index.php/AMS/article/view/61
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author Kenneth K. Alaneme
Ayoola A. Sulaimon
Peter A. Olubambi
author_facet Kenneth K. Alaneme
Ayoola A. Sulaimon
Peter A. Olubambi
author_sort Kenneth K. Alaneme
collection DOAJ
description The mechanical and corrosion behaviour of iron modified Cu-Zn-Al alloys has been investigated. Cu-Zn-Al alloys containing 20 and 25 wt. % Zn was produced by casting method with and without the addition of 0.1wt. % iron. The alloys were subjected to a homogenization – cold rolling- annealing treatment schedule, before the alloys were machined to specifications for tensile test, fracture toughness, hardness measurement, corrosion test and microstructural analysis. From the test results, it was observed that the structures of the Cu-Zn-Al alloys were modified by iron addition with near equi-axed grain morphologies developed. There was no significant difference in the hardness of the iron modified and the unmodified Cu-Zn-Al alloys, but the tensile strength, strain to fracture, and fracture toughness of the alloys improved with iron addition. The Cu-Zn-Al alloys also exhibited good corrosion resistance in 3.5 wt. % NaCl and 0.3M H2SO4 solutions. It was however observed that irrespective of iron addition, the mechanical properties and corrosion resistance of the Cu-20Zn-4Al-xFe alloy compositions where better in comparison with the Cu-25Zn-4Al-xFe alloy grades (where x=0,0.1wt. %).
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spelling doaj.art-20fd74b572044bd5ac963b9fadf54b772022-12-21T18:21:07ZengSciCell s.r.o.Acta Metallurgica Slovaca1335-15321338-11562013-12-0119410.12776/ams.v19i4.184MECHANICAL AND CORROSION BEHAVIOUR OF IRON MODIFIED Cu-Zn-Al ALLOYSKenneth K. AlanemeAyoola A. SulaimonPeter A. OlubambiThe mechanical and corrosion behaviour of iron modified Cu-Zn-Al alloys has been investigated. Cu-Zn-Al alloys containing 20 and 25 wt. % Zn was produced by casting method with and without the addition of 0.1wt. % iron. The alloys were subjected to a homogenization – cold rolling- annealing treatment schedule, before the alloys were machined to specifications for tensile test, fracture toughness, hardness measurement, corrosion test and microstructural analysis. From the test results, it was observed that the structures of the Cu-Zn-Al alloys were modified by iron addition with near equi-axed grain morphologies developed. There was no significant difference in the hardness of the iron modified and the unmodified Cu-Zn-Al alloys, but the tensile strength, strain to fracture, and fracture toughness of the alloys improved with iron addition. The Cu-Zn-Al alloys also exhibited good corrosion resistance in 3.5 wt. % NaCl and 0.3M H2SO4 solutions. It was however observed that irrespective of iron addition, the mechanical properties and corrosion resistance of the Cu-20Zn-4Al-xFe alloy compositions where better in comparison with the Cu-25Zn-4Al-xFe alloy grades (where x=0,0.1wt. %).https://journals.scicell.org/index.php/AMS/article/view/61Cu-Zn-Al shape memory alloysshape memory propertiesmechanical propertiescorrosion behaviourgrain refinement
spellingShingle Kenneth K. Alaneme
Ayoola A. Sulaimon
Peter A. Olubambi
MECHANICAL AND CORROSION BEHAVIOUR OF IRON MODIFIED Cu-Zn-Al ALLOYS
Acta Metallurgica Slovaca
Cu-Zn-Al shape memory alloys
shape memory properties
mechanical properties
corrosion behaviour
grain refinement
title MECHANICAL AND CORROSION BEHAVIOUR OF IRON MODIFIED Cu-Zn-Al ALLOYS
title_full MECHANICAL AND CORROSION BEHAVIOUR OF IRON MODIFIED Cu-Zn-Al ALLOYS
title_fullStr MECHANICAL AND CORROSION BEHAVIOUR OF IRON MODIFIED Cu-Zn-Al ALLOYS
title_full_unstemmed MECHANICAL AND CORROSION BEHAVIOUR OF IRON MODIFIED Cu-Zn-Al ALLOYS
title_short MECHANICAL AND CORROSION BEHAVIOUR OF IRON MODIFIED Cu-Zn-Al ALLOYS
title_sort mechanical and corrosion behaviour of iron modified cu zn al alloys
topic Cu-Zn-Al shape memory alloys
shape memory properties
mechanical properties
corrosion behaviour
grain refinement
url https://journals.scicell.org/index.php/AMS/article/view/61
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AT ayoolaasulaimon mechanicalandcorrosionbehaviourofironmodifiedcuznalalloys
AT peteraolubambi mechanicalandcorrosionbehaviourofironmodifiedcuznalalloys