CuAlPd alloys for sensor and actuator applications

Processing and Characterization of Cu-Al-Ni Shape Memory Alloy Strips Prepared from Elemental Powders via a Novel Powder Metallurgy Route

“…[1][2][3] In particular, Cu-Al-Ni alloys have received considerable attention because of their ability to be used as a high-temperature shape memory alloy owing to their high thermal stability. [3][4][5][6] Cu-Al-Ni alloys produced by conventional casting route are brittle resulting from large elastic anisotropy and large grain sizes, which restricted their large-scale practical applications.…”

“…[1][2][3] In particular, Cu-Al-Ni alloys have received considerable attention because of their ability to be used as a high-temperature shape memory alloy owing to their high thermal stability. [3][4][5][6] Cu-Al-Ni alloys produced by conventional casting route are brittle resulting from large elastic anisotropy and large grain sizes, which restricted their large-scale practical applications. [6][7][8] To overcome the problem of brittleness and to improve mechanical properties, several attempts have been made to refine the grain size by adding various alloying elements, such as Ti, Zr, V, and B.…”

Processing and Characterization of Cu-Al-Ni Shape Memory Alloy Strips Prepared from Prealloyed Powder by Hot Densification Rolling of Powder Preforms

“…SMAs have found applications in a variety of areas including automotive, aerospace, and biomedical applications. [1][2][3][4][5] At present, Ni-Ti-based SMAs are frequently used for most of the practical applications. However, Ni-Ti alloys are unsuitable for relatively high-temperature applications, especially above 373 K (100°C).…”

“…In recent years, copper-based SMAs have been considered a potential material for a variety of applications, such as high damping capacity material, sensors, and actuators. [2][3][4][5] Particularly, Cu-Al-Ni alloys have received a great deal of attention for high-temperature applications due to their high thermal stability at elevated temperatures, i.e., above 473 K (200°C). [4][5][6][7][8] However, brittleness is a severe problem in the Cu-Al-Ni alloys prepared by the conventional casting method, due to large grain sizes (up to several millimeters) coupled with large elastic anisotropy.…”

“…[2][3][4][5] Particularly, Cu-Al-Ni alloys have received a great deal of attention for high-temperature applications due to their high thermal stability at elevated temperatures, i.e., above 473 K (200°C). [4][5][6][7][8] However, brittleness is a severe problem in the Cu-Al-Ni alloys prepared by the conventional casting method, due to large grain sizes (up to several millimeters) coupled with large elastic anisotropy. [8][9][10] To eradicate the problem of brittleness and to enhance ductility of conventionally cast Cu-Al-Ni alloys, several attempts were made through grain refining by addition of a fourth element, such as Ti, Zr, Mn, B, Y, V, and rare earths.…”