Article ID Journal Published Year Pages File Type
1502607 Scripta Materialia 2006 4 Pages PDF
Abstract

The inherent internal frictions IFPTB2→R+IFI and IFPTR→B19′+IFI of Ti50Ni50 alloy are studied under isothermal conditions. The tan δ   values of IFPTB2→R+IFI and IFPTR→B19′+IFI are both proportional to σ0/υ1/2 and thus the damping mechanism of IFPTB2→R+IFI and IFPTR→B19′+IFI is related to the stress-assisted martensitic transformation and stress-assisted motions of twin boundary. The tan δ   value of IFPTR→B19′+IFI is larger than that of IFPTB2→R+IFI because of the larger transformation strain and the greater twin boundaries associated with the R → B19′ transformation.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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