Shape memory alloys are characterized by a thermoelastic martensitic transformation and the presence of ordering in the parent phase and martensite. Crystal structure studies of parent and martensite phases in a CuAlMn alloy show that a thermoelastic transformation from an or- nered parent phase of DO3 type to an M18R martensite takes place. This orthorombic structure of M18R form consists of an array of close-packed plaııes. The eighteen layer martensite structure (AB'CB'CA'CA'BA'BC'BC'AC'AB') can form as a result of periodic shifts on the martensite basal plane in the c-direction.
Primary Language | English |
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Subjects | Engineering |
Journal Section | Research Articles |
Authors | |
Publication Date | January 1, 1987 |
Submission Date | January 1, 1987 |
Published in Issue | Year 1987 |
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering
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