Time dependence of internal friction and shape change in Cu-Zn-Al shape memory alloys

Journal Article · Tue Nov 30 23:00:00 EST 1993 · Metallurgical Transactions, A

DOI:https://doi.org/10.1007/BF02659498· OSTI ID:142323

Xiao, T; Johari, G P ^[1]; Mai, C ^[2]

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1. McMaster Univ, Hamilton, Ontario (Canada). Dept. of Materials Science and Engineering
2. INSA de Lyon, Villeurbanne (France). Study Group of Physical Metallurgy and the Physics of Materials

The time evolution of internal friction and shape change in different microstructural states of two Cu-Zn-Al shape memory alloys has been investigated. In the single-martensite phase state, the monotonic decrease of internal friction with time is attributed to the pinning of martensite/martensite interfaces. When the parent phase is present, the change in the internal friction is associated with the formation of stress-induced martensite and the subsequent pinning of the martensite/parent and martensite/martensite interfaces.

• Sponsoring Organization: USDOE
• OSTI ID: 142323
• Journal Information: Metallurgical Transactions, A, Journal Name: Metallurgical Transactions, A Journal Issue: 12 Vol. 24A; ISSN 0360-2133; ISSN MTTABN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
COPPER BASE ALLOYS
CORRELATIONS
EXPERIMENTAL DATA
INTERNAL FRICTION
MICROSTRUCTURE
PHASE STUDIES
SHAPE MEMORY EFFECT
ZINC ALLOYS