Effect of zirconium on the properties of polycrystalline Cu-Al-Be shape memory alloy
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier Ltd
Abstract
This paper presents an investigation of the effect of zirconium on the properties of polycrystalline Cu-Al-Be shape memory alloy. Mechanical and shape memory properties have been evaluated by varying the compositions of Zr to Cu<inf>88.13</inf>-Al<inf>11.42</inf>-Be<inf>0.45</inf> alloy ranging from 0.05 to 0.4 wt% with step 0.1 wt%. The results unveil reduction in the grain size of 89.18% with the improved tensile strength of 667 ± 30 MPa and ductility of 23.95 ± 0.86% and excellent shape recovery ratio of 100% with the addition of Zr up to 0.3 wt%. Increase in transformation temperatures is observed with the addition of Zr. © 2019 Elsevier B.V.
Description
Keywords
Aluminum alloys, Copper alloys, Grain refinement, Grain size and shape, Polycrystalline materials, Precipitation (chemical), Shape memory effect, Tensile strength, Zirconium, % reductions, Cu–al-be shape memory alloy, Grains refinement, Grainsize, Mechanical memory, Polycrystalline, Precipitation strengthening, Property, Shape recovery ratios, Shape-memory properties, Hydrogen
Citation
Materials Science and Engineering: A, 2019, 755, , pp. 211-219