Transient internal friction during thermal cycling of Cu-Al-Ni single crystals in ß'1 martensitic phase
Sapozhnikov, K. × Golyandin, S. Kustov, S. Van Humbeeck, Jan Schaller, R. De Batist, R. #
Scripta Materialia vol:47 issue:7 pages:459-465
Pronounced transient internal friction, accompanied by shear modulus defect and reversible torsional deformation, has been revealed during thermal cycling of Cu-Al-Ni single crystals in the beta'(1) martensitic phase. These phenomena are associated with microplastic straining of the martensitic phase due to anisotropy of thermal expansion of the martensitic variants. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.