利用高分辨透射电子显微镜和能谱仪对Zirlo合金和M5合金进行了微观组织和微区成分分析.结果表明:M5合金中圆球状的第二相弥散分布在晶界上和晶粒内,尺寸约为50 nm;第二相的主要成分为 Zr元素和Nb元素,第二相为体心立方结构的β-Nb相;在Zirlo合金中弥散分布着两种尺寸不同的第二相粒子,一种为体心立方结构的β-Nb,尺寸为20～40 nm;另一种为密排六方结构的Fe2Nb0.4Zr0.6相,尺寸约为100 nm.
The microstructure and micro-area composition of Zirlo alloy and M5 alloy were analyzed by high-resolution transmission electron microscope and energy dispersive spectrometer.The results show that the spherical second phase in M5 alloy was dispersed on the grain boundary and in the grain,and the size was about 50 nm.The main components of the second phase were Zr element and Nb element,and the second phase was β-Nb phase with body-centered cubic structure.Two kinds of second phase particles with different sizes were dispersed in Zirlo alloy.One was β-Nb with body-centered cubic structure,and the size was 20-40 nm.The other was Fe2Nb0.4Zr0.6 phase with a close-packed hexagonal structure,with a size of about 100 nm.
杜艳华;蔡振方;郭洪;池春霞;王红波;董青
中核新型材料研究与应用开发重点实验室,包头 014035||中核北方核燃料元件有限公司,包头 014035中核北方核燃料元件有限公司,包头 014035
金属材料
锆合金;微观组织;微区成分;第二相粒子;傅里叶变换
zirconium alloy;microstructure;micro-area composition;second phase particle;fourier transform
《理化检验-物理分册》 2024 (006)
1-4 / 4
10.11973/lhjy-wl230177
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