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Influence of quaternary alloying additions on transformation temperatures and shape memory properties of Cu-Al-Mn shape memory alloy
Published in
2009
Volume: 469
   
Issue: 1-2
Pages: 156 - 163
Abstract
The transformation temperatures, shape memory effect and superelasticity of Cu-Al-Mn shape memory alloys are highly sensitive to variations in composition. A ternary shape memory alloy Cu-12.5 wt.% Al-5 wt.% Mn was chosen for the present study and different amounts (1, 2 and 3 wt.%) of quaternary elements Zn, Si, Fe, Pb, Ni, Mg, Cr and Ti were added to the ternary (base) alloy. The influence of quaternary additions on shape memory characteristics of these alloys was studied by differential scanning calorimetry, bend and tensile test. Zn and Ni as quaternary additions were found to increase the transformation temperatures, whereas Fe, Cr, Ti, Si and Mg decrease them. These additions were found to increase the extent of strain recovery by shape memory effect, whereas decrease the superelasticity of the alloys. © 2008 Elsevier B.V. All rights reserved.
About the journal
JournalJournal of Alloys and Compounds
ISSN09258388
Open AccessNo
Concepts (31)
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    Alloying
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    Alloying elements
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    Aluminum
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    Cerium alloys
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    Chromium
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    Copper
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    Copper alloys
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    Differential scanning calorimetry
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    Lead
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    Manganese
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    Manganese compounds
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    Martensitic transformations
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    Metallic compounds
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    Shape memory effect
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    Silicon alloys
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    Tensile testing
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    Titanium alloys
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    Zinc
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    ALLOYING ADDITIONS
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    HIGHLY SENSITIVES
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    In compositions
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    QUATERNARY ADDITIONS
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    QUATERNARY ALLOYING ELEMENTS
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    Quaternary elements
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    Shape memory alloys
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    SHAPE MEMORY CHARACTERISTICS
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    STRAIN RECOVERIES
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    Superelasticity
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    Tensile tests
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    TRANSFORMATION TEMPERATURES
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    Alloys