On the modeling of the effect of processing and heat treatment on actuation behaviors of high temperature ternary and quaternary shape memory alloys

The cyclic actuation behaviors of five high-temperature shape memory alloys are studied using a recently-developed multi-mechanism material model. An approach is taken to link few parameters in the mathematical model to specific SMA response characteristics, hence enabling us to account for the effe...

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Bibliographic Details
Published inJournal of alloys and compounds Vol. 714; pp. 493 - 501
Main Authors Owusu-Danquah, J.S., Saleeb, A.F.
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier B.V 15.08.2017
Elsevier BV
Subjects
Actuation
Aging
Alloy development
Alloys
Chemical compounds
Composition effects
Heat treating
Heat treatment
High temperature
Mathematical models
Processing
Production methods
Shape memory alloys
Aging
Model
Actuation
Shape memory alloys
High-temperature
Processing
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Summary:The cyclic actuation behaviors of five high-temperature shape memory alloys are studied using a recently-developed multi-mechanism material model. An approach is taken to link few parameters in the mathematical model to specific SMA response characteristics, hence enabling us to account for the effects of material composition, heat treatments and the processing methods used in producing these alloys. The model results were found to be in good agreement with the experimental data obtained for the as-received/processed/aged forms of the Ti50.5Ni24.5Pd25, Ti50Ni24.5Pd25Sc0.5, and Ni50.3Ti29.7Hf20 materials. •A multi-mechanism model is used to capture the actuation responses of HTSMAs.•Effects of composition, processing, and aging are investigated.•Ni50.3Ti29.7Hf20 alloys show a more dimensionally stable cyclic character.•Cyclic actuation responses of HTSMAs are linked to the model internal variables.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2017.04.212