Neutron Diffraction Investigations of a CuAlBe Shape Memory Alloy

Abstract:

This work was devoted to the study of a copper based shape memory alloy using the neutron diffraction method. We present the crystallographic texture evolution of the austenite phase of the Cu-11%Al-0.62%Be (wt. %) alloy which was subjected to cold and hot rolling processes. The texture of the cold rolled samples at reduction rates of 5%, 10% and 15% respectively was measured and compared to the raw material. A <001> partial fiber is observed for the raw material and for cold rolled samples whereas the texture of the hot rolled sample is mainly characterized by a <111> fiber. On the second part, we have studied the influence of the rolling treatment on the transition temperatures by following the integrated intensity of the {220} austenite reflection. The increase of the rolling rate seems to shift the characteristic temperatures towards low temperatures.

• Periodical: Advanced Materials Research (Volume 409)
• Pages: 569-574
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.409.569
• Online since: November 2011
• Authors: Matthieu Dubois, Marie Hélène Mathon, Vincent Klosek, Gilles Andre, Alain Lodini
• Keywords: Crystallographic Texture, CuAlBe Shape Memory Alloy, Martensitic Transformation (MT), Neutron Diffraction

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