Texture Evolution of HPT-Processed Ni50Mn29Ga21

Robert Chulist; Andrea Böhm; E. Rybacki; T. Lippmann; C.G. Oertel; Werner Skrotzki

doi:10.4028/www.scientific.net/MSF.702-703.169

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HomeMaterials Science ForumMaterials Science Forum Vols. 702-703Texture Evolution of HPT-Processed Ni50Mn29Ga21

Texture Evolution of HPT-Processed Ni₅₀Mn₂₉Ga₂₁

Abstract:

The texture of polycrystalline Ni₅₀Mn₂₉Ga₂₁ alloys fabricated by high pressure torsion (HPT) was investigated with high-energy synchrotron radiation. HPT was performed at temperatures between 873K and 1173K under a hydrostatic pressure of 400 MPa. During HPT above 973K the initial cyclic fibre texture changes to a strong cube and a weak F component. Below 973K a strong rotated cube and weak F and C components develop. Additionally, electron backscatter diffraction reveals that samples deformed at low temperature do not completely transform to martensite giving rise to residual austenite.

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Materials Science Forum (Volumes 702-703)

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169-172

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https://doi.org/10.4028/www.scientific.net/MSF.702-703.169

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Online since:

December 2011

Authors:

Robert Chulist, Andrea Böhm, E. Rybacki, T. Lippmann, C.G. Oertel, Werner Skrotzki

Keywords:

Microstructure, NiMnGa, Synchrotron Radiation, Texture, Torsion

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