Accession Number : ADA139975

Title :   The Effect of Cold Work on Martensitic Transformations in CU-ZN-AL Shape Memory Alloys.

Descriptive Note : Master's thesis,


Personal Author(s) : Sullivan,S M

PDF Url : ADA139975

Report Date : Dec 1983

Pagination or Media Count : 127

Abstract : Samples of martensitic Cu-Zn-Al shape memory alloy were deformed by cold rolling below MI (martensite finish temperature). The effect of cold work upon the reaction kinetics of parent to product and product to parent transformations was studied utilizing differential scanning calorimetry methods. Characterization of the microstructure of selectively deformed shape memory alloy samples was accomplished by optical and transmission electron microscopy techniques. Correlation of microstructure and substructural conditions with associated transformation trends provided an understanding of the effect of cold work, as characterized by stress induced morphology, upon shape memory behavior. (Author)

Descriptors :   *Alloys, *Cold working, *Memory devices, *Shape, *Martensite, *Transformations, Microstructure, Structural analysis, Ternary compounds, Copper alloys, Zinc alloys, Aluminum alloys, Deformation, Reaction kinetics, Stresses, Morphology, Optical properties, Nondestructive testing, Electron microscopy, Dislocations, Calorimetry, Test methods, Naval research, Theses

Subject Categories : Physical Chemistry
      Properties of Metals and Alloys
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE