Model for self-accommodated groups of martensite

Alexander E. Volkov; Margarita E. Evard

doi:10.1117/12.619532

29 April 2005 Model for self-accommodated groups of martensite

Alexander E. Volkov, Margarita E. Evard

Proceedings Volume 5831, Eighth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering; (2005) https://doi.org/10.1117/12.619532
Event: Eighth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, 2004, St. Petersburg, Russian Federation

Abstract

A microstructural model considering self-accommodated groups of martensite as independent formations has been developed. Equations describing the growth and shrinkage of the groups of martensite and martensite reorientation have been deduced from the hypotheses of the equilibrium of generalized thermodynamic forces, including the driving force, the force due to mixing of the phases and the friction force. This approach allows modeling of common deformation effects in shape memory alloys such as pseudoelasticity, ferroplasticity, transformation plasticity and strain recovery, and it also explains the less-known phenomenon of the oriented transformation deformation consisting in the spontaneous strain accumulation on cooling after the stress, which was applied at the beginning of the direct transformation, is removed.

Citation Download Citation

Alexander E. Volkov and Margarita E. Evard "Model for self-accommodated groups of martensite", Proc. SPIE 5831, Eighth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (29 April 2005); https://doi.org/10.1117/12.619532

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