Thermomechanical andmicrostructural characterizationof Co49Ni21Ga30 and Co38Ni33Al29 high-temperature shape memory alloy single crystals / Jayaram Dadda. 2009
Inhalt
- Nomenclature
- Introduction and Scope of Research
- 1 Theoretical Background
- 1.1 Shape Memory Alloys
- 1.2 Reversible Martensitic Transformation
- 1.3 Thermodynamic Aspects of the Martensitic Transformations
- 1.4 Shape Memory Effect (SME)
- 1.5 Pseudoelasticity (PE)
- 1.6 Two-way Shape Memory Effect (TWSME)
- 1.7 Cyclic stress-strain response (CSSR) of Shape Memory Alloys
- 1.8 Co-base Alloys
- 2 Material and Experimental Procedures
- 2.1 Material and Sample Preparation
- 2.2 Thermo-mechanical Experiments
- 2.3 Microscopy and Digital Image Correlation
- 2.4 Electron Microscopy, DSC and SQUID
- 3 Characterization of Shape Memory Behavior in Co38Ni33Al29 and Co49Ni21Ga30 Alloys
- 4 Co49Ni21Ga30-alloys as a High-temperature Pseudoelastic Material
- 4.1 Introduction
- 4.2 Microstructure-pseudoelastic property relationships
- 4.2.1 Mechanical property variation with temperature
- 4.2.2 Evolution of microstructure with temperature during SIM transformations
- 4.3 Effect of Training on the Pseudoelasticity
- 4.4 Chapter Summary
- 5 Cyclic Stability of Co49Ni21Ga30 Single Crystals
- 5.1 Introduction
- 5.2 Cyclic Stress-Strain Response at Ambient Temperatures
- 5.3 Cyclic deformation behavior at elevated temperatures
- 5.4 Chapter Summary
- 6 Summary & Future Research
- References
- Vita