Microstructural Irreversibilities under Thermal Cycling in Ni-Ti-Fe Shape Memory Alloys

Ritwik Basu; Lokendra Jain; Bikas Maji; Madangopal Krishnan; Karri V. Mani Krishna; Indradev Samajdar; Prita Pant

doi:10.4028/www.scientific.net/MSF.702-703.888

Paper Titles

Evolution of Hot Rolling and Phase Transformation Textures in an α″ (Orthorhombic) Phase in Ti-Nb Alloys
p.872

Evolution of Texture during Directional Solidification of Giant Magnetostrictive Tb_0.3Dy_0.7Fe_1.95 Alloy
p.876

Restitution of Prior-Austenite Grain Orientation by Microtexture Analysis of Tempered Martensite Structure in 9Cr-1Mo Ferritic Steel
p.880

Textural Evolution Evaluated by EBSD and XRD after Thermal Treatment in Ni-Ti Shape Memory Alloy
p.884

Microstructural Irreversibilities under Thermal Cycling in Ni-Ti-Fe Shape Memory Alloys
p.888

Evolution of Texture and Microstructure during Cold Rolling and Annealing of Fe-14Mn-6Si-9Cr-5Ni Shape Memory Alloy
p.892

Deformation Induced Phase Seperation of Ni₄₅Co₅ Mn_36.7In_13.3 Alloy at High Temperature
p.896

Variants of Texture Formation by Rolling of Ti-Ni Single Crystals with Shape Memory Properties
p.900

TEM Studies on the Microstructural Changes during Thermo-Mechanical Cycling of NiTi Shape Memory Alloy Wire
p.904

HomeMaterials Science ForumMaterials Science Forum Vols. 702-703Microstructural Irreversibilities under Thermal...

Microstructural Irreversibilities under Thermal Cycling in Ni-Ti-Fe Shape Memory Alloys

Abstract:

The thermal cycling (quenching in liquid nitrogen and reverting back to room temperature: austenite martensite reversible transformation) response of Ni-Ti-Fe shape memory alloys has been investigated. It was clearly noted that residual deformation, estimated in terms of noticeable differences in austenite grain size, depend on the relative clustering of fine grains. During repeated thermal cycling, the residual deformation, in-grain misorientation developments and retained martensite content scaled together: bringing out a clear picture of microstructural irreversibility.

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Materials Science Forum (Volumes 702-703)

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888-891

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.702-703.888

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Online since:

December 2011

Authors:

Ritwik Basu, Lokendra Jain, Bikas Maji, Madangopal Krishnan, Karri V. Mani Krishna, Indradev Samajdar, Prita Pant

Keywords:

EBSD, Microstructure, Ni-Ti, Orientation Relationship, Shape Memory Alloy Actuator, Thermal Cycling

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