Indentation Measurement of CuZnAl Dual Phase Shape Memory Alloy

The aim of this work is indentation study of local mechanical properties of Cu-22Zn-4.6Al alloy, which has significant shape memory effect after quenching from dual α + β phase region. The study was carried out on the samples with thermoelastic and non-thermoelastic martensite in the structure, whic...

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Bibliographic Details
Published in:Key engineering materials 2018-10, Vol.784, p.38-43
Main Authors: Fides, Martin, Vojtkova, Liudmila, Balko, Ján, Vojtko, Marek
Format: Article
Language:English
Subjects:
Beta phase
Hardness tests
Indentation
Martensite
Martensitic transformations
Mechanical properties
Phase transitions
Quenching
Shape effects
Shape memory
Shape memory alloys
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Summary:The aim of this work is indentation study of local mechanical properties of Cu-22Zn-4.6Al alloy, which has significant shape memory effect after quenching from dual α + β phase region. The study was carried out on the samples with thermoelastic and non-thermoelastic martensite in the structure, which were obtained by quenching from various temperatures. A different behavior concerning mechanical properties measurements of α phase and β phase transformed to martensite after quenching from various temperatures was found out. It was observed almost no change of mechanical properties of α phase, whereas indentation hardness HIT and indentation modulus EIT raised with increasing quenching temperature. Also some serious differences were observed at indentation test of thermoelastic and non-thermoelastic martensite.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.784.38