Marforming: A Novel Method for Grain Refinement in Ni-Ti Based Shape Memory Alloys

Ritwik Basu; Jerzy A. Szpunar; Mostafa Eskandari

doi:10.4028/www.scientific.net/AMM.860.46

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Marforming: A Novel Method for Grain Refinement in Ni-Ti Based Shape Memory Alloys
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 860Marforming: A Novel Method for Grain Refinement in...

Marforming: A Novel Method for Grain Refinement in Ni-Ti Based Shape Memory Alloys

Abstract:

The study presents a comparative evaluation on microstructural modifications of a ternary Ni―Ti―Fe alloy deformed through two different routes of deformation through equal reduction in thickness. These deformation modes were (1) conventional cold rolling and (2) marforming (rolling in liquid nitrogen). The final annealing treatments were kept identical for both processes. Considerable differences in microstructures were brought out through aforementioned deformation modes. Marforming of the alloy led to significant grain refinement as against conventional cold rolling, revealed through electron backscattered diffraction (EBSD) studies.

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Periodical:

Applied Mechanics and Materials (Volume 860)

Pages:

46-51

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.860.46

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Online since:

December 2016

Authors:

Ritwik Basu*, Jerzy A. Szpunar, Mostafa Eskandari

Keywords:

Electron Backscattered Diffraction (EBSD), Marforming, Microstructure, Ni-Ti Shape Memory Alloys

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