Y元素对Cu-Al-Ni高温形状记忆合金性能的影响

张鑫, 崔博, 孙斌, 赵旭, 张欣, 刘庆锁, 董治中

Effect of Y Element on the Properties of Cu-Al-Ni High Temperature Shape Memory Alloy

ZHANG Xin, CUI Bo, SUN Bin, ZHAO Xu, ZHANG Xin, LIU Qingsuo, DONG Zhizhong

图3 Cu-13Al-4Ni-0.5Y合金的TEM明场像、SAED花样、HRTEM像及第二相区域EDS元素面扫描图

Fig.3 TEM bright field image (a), the corresponding selected area electron diffraction (SAED) patterns of 18R martensite (b) and second phase (c) in the Cu-13Al-4Ni-0.5Y alloy; high resolution transmission electron microscope (HRTEM) image of area d in Fig.3a (Inset shows the fast Fourier transform) (d); EDS element maps of Cu (e), Al (f), Ni (g), and Y (h) for the second phase (d—interplanar spacing)