Anisotropy of Cu-based shape memory alloys in tension/compression thermomechanical loads

Journal Article · Fri Jan 01 04:00:00 EST 1999 · Journal of Engineering Materials and Technology

DOI:https://doi.org/10.1115/1.2815999· OSTI ID:329108

Sittner, P; Novak, V ^[1]

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1. Academy of Sciences of the Czech Republic, Prague (Czech Republic). Inst. of Physics

Tension/compression thermomechanical experiments were performed on oriented CuAlNi shape memory alloy single crystals and CuAlZnMn single and polycrystals. Response of the single crystals in thermomechanical loads was strongly anisotropic, dependent on the orientation of the load axis and sense of the load. Tension/compression stress-temperature diagrams were constructed from experimentally determined transformation stresses and temperatures. It was shown that the history dependent strain response of the single crystal in a complex tension/compression thermomechanical cycle could be predicted from the diagram. Thermomechanical behaviors of the CuAlZnMn polycrystal under tension/compression were reported and discussed on the basis of the knowledge of the single crystal anisotropy.

• Sponsoring Organization: USDOE
• OSTI ID: 329108
• Journal Information: Journal of Engineering Materials and Technology, Journal Name: Journal of Engineering Materials and Technology Journal Issue: 1 Vol. 121; ISSN 0094-4289; ISSN JEMTA8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
ANISOTROPY
COPPER ALLOYS
CRYSTAL-PHASE TRANSFORMATIONS
MANGANESE ALLOYS
NICKEL ALLOYS
SHAPE MEMORY EFFECT
STRESSES
TEMPERATURE DEPENDENCE
ZINC ALLOYS