Effects of Growth Rate and Composition on the Microstructure of Directionally Solidified NiMnGa Alloys

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 5053, Issue , 2003, Pages 181-190

  Chen, J ^a   Gharghouri, M A ^a   Hyatt, C V ^b  

^a DALHOUSIE UNIVERSITY   (Canada)

^b DEFENCE RESEARCH AND DEVELOPMENT CANADA   (Canada)

Author keywords

Bridgman growth; Cellular structure; Directional solidification; Magnetic shape memory alloys; Segregation

Indexed keywords

CRYSTAL GROWTH; CRYSTAL MICROSTRUCTURE; EUTECTICS; MAGNETIC FIELD EFFECTS; METALLOGRAPHIC MICROSTRUCTURE; SEGREGATION (METALLOGRAPHY); SHAPE MEMORY EFFECT; SINGLE CRYSTALS; SOLIDIFICATION;

BRIDGMAN GROWTH; GROWTH RATE;

NICKEL ALLOYS;

EID: 0242694481     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.484695     Document Type: Conference Paper

References (18)

1. 2MnGa single crystals," Applied Physics Letters, 69, pp. 1966 - 1968, 1996.
2. A. Sozinov, A. A. Likhachev, N. Lanska, and K. Ullakko, "Giant magnetic-field-induced strain in NiMnGa seven-layered martensitic phase," Applied Physics Letters, 80, pp. 1746 - 1748, 2002.
3. A. A. Likhachev, A. Sozinov, and K. Ullakko, "Optimizing work output in Ni-Mn-Ga and other ferromagnetic shape-memory alloys," Proceedings, Smart Structures and Materials 2002, ed. C. S. Lynch, 4699, pp. 553 - 562, SPIE, 2002.
4. M. A. Marioni, D. C. Bono, R. C. O'Handley, and S. M. Allen, "Pulsed magnetic field actuation of single crystalline ferromagnetic shape memory alloy Ni-Mn-Ga," Proceedings, Smart Structures and Materials 2002, ed. C. S. Lynch, 4699, pp. 191 - 194, SPIE, 2002.
5. Y. Liu, W. M. Zhou, X. Qi, B. H. Jiang, W. H. Wang, J. L. Chen, G. H. Wu, J. C. Wang, C. D. Feng, and H. Q. Xie, "Magneto-shape-memory effect in Co - Ni single crystals", Applied Physics Letters, 78, pp. 3660 - 3662, 2001.
6. R. D. James and M. Wuttig, "Magnetostriction of martensite", Philosophical Magazine A., 77, pp. 1273 - 1299, 1998.
7. R. Hayashi, S. J. Murray, M. Marioni, S. M. Allen, and R. C. O'Handley, "Magnetic and mechanical properties of FeNiCoTi magnetic shape memory alloy," Sensors and Actuators, 81, pp. 219 - 223, 2000.
8. S. J. Murry, R. Hayashi, M. Marioni, S. M. Alien, and R. C. O'Handley, "Magnetic and mechanical properties of FeNiCoTi and NiMnGa magnetic shape memory alloys," Proceedings, Smart Structures and Materials 1999, ed. M. Wuttig, 3675, pp. 204 - 211, SPIE, Newport Beach, USA, 1999.
9. K. Battacharya and R. V. Kohn, "Symmetry, texture and recoverable strain of shape memory polycrystals," Acta Materialia, 44, pp.529-542, 1996.
10. S. J. Murry, M. Marioni, S. M. Allen, R. C. O'Handley, and T. A. Lograsso, "6% magnetic-field-induced strain by twin-boundary motion in ferromagnetic Ni-Mn-Ga," Applied Physics Letters, 77, pp. 886-888, 2000.
11. Heczko, O., and Ullakko, K., "Effect of temperature on magnetic properties of Ni-Mn-Ga Magnetic shape memory (MSM) alloys," IEEE Transactions on Magnetics, 37, pp. 2672-2674, 2001.
12. O. Heczko, A. Sozinov, and K. Ullakko, "Giant field-induced reversible strain in magnetic shape memory NiMnGa alloy," IEEE Transactions on Magnetics, 36, pp. 3266-3268, 2000.
13. nd Canada-US Workshop on Smart Materials and Structures, ed. G. Akhras, pp. 53 - 62, Montreal, Canada, 2002.
14. J. Pons, V. A. Chernenko, R. Santamarta, and E. Cesari, "Crystal structure of martensitic phases in Ni-Mn-Ga shape memory alloys," Acta Materialia, 48, pp. 3027-3038, 2000.
15. K. Ullakko, Y. Ezer, A. Sozinov, G. Kimmel, P. Yakovenko, and V. K. Lindroos, "Magnetic-field-induced strains in polycrystalline Ni-Mn-Ga at room temperature," Scripta Materialia, 44, pp. 475-480, 2001.
16. nd Canada-US Workshop on Smart Materials and Structures, ed. G. Akhras, pp. 247 253, Montreal, Canada, 2002.
17. J. Chen, J. H. Lee, C. Y. Jo, S. J. Choe, and Y. T. Lee, "MC carbide formation in directionally solidified MAR-M 247 superalloy," Materials Science and Engineering, A247, pp. 113-125, 1998.
18. M. C. Flemings, Solidification Processing, McGraw-Hill, New York, 1974.