Microstructures and Damping Properties in Ni-Al-Based Alloys
The binary Ni-rich Ni64Al36 (nominal compositions, all compositions are in atomic percent unless otherwise stated,) alloy and ternary Ni-21.2 Al-20 Fe alloy ingot were prepared by melting commercial pure Ni and pure Al in a vacuum arc furnace under an argon atmosphere. The ingots were then hot rolled into a rectangle with the length of 55 mm. The microstructures of Ni-Al-based alloys were investigated using optical microscope and X-ray diffraction. The damping capacity of oil-quenched ternary Ni-21.2 Al-20 Fe alloy from different temperature is investigated using a multifunctional internal friction apparatus.
Jimmy (C.M.) Kao, Wen-Pei Sung and Ran Chen
Z.C. Zhou et al., "Microstructures and Damping Properties in Ni-Al-Based Alloys", Advanced Materials Research, Vols. 581-582, pp. 440-443, 2012