Shape Memory Effects in Alloys

ISBN-13: 9781468422139 / Angielski / Miękka / 2012 / 583 str.

Jeff Perkins

Opis

The International Symposium on Shape Memory Effects and Appli- cations was held at the University of Toronto on May 19-20, 1975, in four sessions over two days, as part of the regular 1975 Spring Meeting of The Metallurgical Society of AlME, sponsored by the Physical Metallurgy Committee of The Metallurgical Society. This was the first symposium on the subject, the only previous meeting at all related being the 1968 NOL Symposium on TiNi and Associated Compounds. One of the major intentions of this Symposium was to provide a forum for cross-communication between workers in the diverse metallurgical areas pertinent to shape memory effects, areas such as martensitic transformation, crystallography and thermodynamics, mechanical behavior, stress-induced transformation, lattice sta- bility, and alloy development. Authors were encouraged to place an emphasis on delineation of general controlling factors and mech- anisms, and on comparison of shape memory effect alloy systems with systems not exhibiting SME.

Spis treści

1. Deformation, Mechanisms and Other Characteristics of Shape Memory Alloys.- 2. The Mechanical Properties of SME Alloys.- 3. Optical and Electron Microscope Observations of Transformation and Deformation Characteristics in Cu-Al-Ni Marmem Alloys.- 4. Crystallography and Thermodynamics of SME-Martensites.- 5. Martensitic Transformations in ?-Phase Alloys.- 6. Lattice Softening and the Origin of SME.- 7. Premartensitic-Martensite Transitions Related to Shape Memory Effect.- 8. Ferroelastic “Memory” and Mechanical Properties in Gold Cadium.- 9. The Shape Memory Effect in TiNi: One Aspect of Stress-Assisted Martensitic Transformation.- 10. Thermomechanical Characteristics of Alloys Exhibiting Martensitic Thermoelasticity.- 11. Shape Memory Effects and Applications: An Overview.- 12. Direct Observation of Martensitic Transformation Between Martensites in a Cu-Al-Ni Alloy.- 13. Microstructural Changes During SME Behavior.- 14. Martensite Formation as a Deformation Process in Polycrystalline Copper-Zinc Based Alloys.- 15. The Influence of Thermal History on the Pseudoelasticity of Copper-Zinc Based Alloys and the Mechanical Behaviour of Martensite.- 16. The Martensitic Transformation in ?-Brass and the Shape Memory Effect.- 17. The Rubberlike Behavior in Cu-Zn-Al Martensite Single Crystals.- 18. Superelasticity and Shape Memory Effect in Cu-Sn Alloys.- 19. Shape Memory Effect and Anelasticity Associated with the Martensitic Transformation in the Stoechiometric Fe3Pt Alloy.- 20. Compression of CuAlNi Crystals.- 21. Tensile Properties of Superconducting Composite Conductors and Nb-Ti Alloys at 4.2°K.- 22. Suggestions for Applying a Phenomenological Approach to Investigations of Mechanical Behavior in SME Alloys.- 23. Internal Friction Measurements on Copper-Zince Based Martensite.- 24. A Quantitative Treatment of the Lattice Softening of Shape Memory Alloys.- 25. The Relationshiop Between Stacking Fault Energy and Shape Memory in Primary Solid Solutions.- 26. Mechanisms for Martensite Formation and the Shape Memory Effect.- 27. On Zonal Dislocations and Their Origin for Twinning and Martensite Formation.- 28. Use of TiNi in Mechanical and Electrical Connectors.- 29. Manufacture of an Integrated Circuit Package.- 30. Nitinol Heat Engines.- 31. Internal Vibration Absorption Potential in Structural Materials.- 32. A Proposed Medical Application of the Shape Memory Effect: A NiTi Harrington Rod for the Treatment of Scoliosis.- 33. Written Discussion.