Zirlo合金和M5合金的微观组织和微区成分  

Microstructure and micro-area composition of Zirlo alloy and M5 alloy

作　　者：杜艳华 蔡振方 郭洪 池春霞[2] 王红波 董青 DU Yanhua;CAI Zhenfang;GUO Hong;CHI Chunxia;WANG Hongbo;DONG Qing(CNNC Key Lab of New Materials Research and Application Development,Baotou 014035,China;China North Nuclear Fuel Co.,Ltd.,Baotou 014035,China)

机构地区：[1]中核新型材料研究与应用开发重点实验室,包头014035 [2]中核北方核燃料元件有限公司,包头014035

出　　处：《理化检验（物理分册）》2024年第6期1-4,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：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Fe_(2)Nb_(0.4)Zr_(0.6)相,尺寸约为100 nm。The microstructure and micro-area composition of Zirlo alloy and M5 alloy were analyzed by highresolution 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 wasβ-Nb phase with bodycentered cubic structure.Two kinds of second phase particles with different sizes were dispersed in Zirlo alloy.One wasβ-Nb with body-centered cubic structure,and the size was 20-40 nm.The other was Fe_(2)Nb_(0.4)Zr_(0.6) phase with a closepacked hexagonal structure,with a size of about 100 nm.

关 键 词：锆合金 微观组织 微区成分 第二相粒子 傅里叶变换 

分 类 号：TG115.2[金属学及工艺—物理冶金] TB31[金属学及工艺—金属学]