| Title |
Crystallographic Analysis of B2 to 9R Martensite Transformation based on Phenomenological Theory of Invariant Plane Strain |
| Abstract |
The phenomenological theory of martensitic transformation has been applied to crystallographic analysis of the B2 to 9R martensite transformation in Cu-Zn-Al shape memory alloys. The formulation procedure for solving the crystallographic relation between B2 and 9R phases is based on the basic concept of the invariant plane strain. Analytical crystallographic solutions have been derived to predict habit plane, direction and size of invariant plane strain, total shapede formation, orientation relationships between parent and martensite phases. Comparison between these derived solutions and experimental data has shown good agreement. It has been demonstrated that these analytical solutions are useful to understand various crystallographic features of the B2 to 9R martensite transformation. |