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2012
Conference Paper
Titel
Texture evolution of HPT-processed Ni 50Mn 29Ga 21
Alternative
Texturbildung von HPT-hergestelltem Ni50Mn29Ga21
Abstract
The texture of polycrystalline Ni 50Mn 29Ga 21 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.