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变形及热处理对Zr-Sn-Nb新锆合金第二相粒子的影响

Effect of Deformation and Heat Treatment on the Second Phase Particulars of Zr-Sn-Nb New Zirconium Alloy

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【Author】 Lei Ming1, Liu Wenqing1, Yan Qingsong1, Li Qiang1, Yao Meiyi2, Zhou Bangxin2 (1. Instrumental Analyses and Research Center, Shanghai University, Shanghai 200444, China) (2. Institute of Materials, Shanghai University, Shanghai 200072, China)

【机构】上海大学分析测试中心；上海大学材料研究所；上海大学材料研究所上海 200444；上海 200444；上海 200072；

【摘要】将Zr-Sn-Nb 新锆合金样品分组进行不同的热加工,用透射电镜(TEM)和高分辨电镜(HRTEM)观察并分析它们的显微组织和第二相粒子成分。TEM 观察发现,1000℃样品与 580℃样品相似,第二相粒子呈弥散分布。其它样品中第二相粒子分布不太均匀,随着保温温度升高,带状分布的第二相增多。EDS分析发现样品中存在Nb/Fe比不同的2种Zr-Nb-Fe第二相粒子和不含Fe元素的βNb粒子。更多还原

【Abstract】 The microstructures of Zr-Sn-Nb zirconium alloy specimens were investigated after being treated in different way. TEM observation showed that the specimen treated at 1000℃ had fine and even distribution of the second phase particulars(SPPs), as that treated at 580℃. And the SPPS distribution was not so uniform in other specimens. The second phase particulars increased with increasing of temperature. βNb particulars without Fe element and two kinds of Zr-Nb-Fe SPPs with different Nb/Fe ratios were observed via EDS analysis. It is quite clear that the deformation and heat treatment affected the size and the distribution of SPPs.更多还原

【关键词】锆合金；热处理；显微组织；第二相粒子；
【Key words】 zirconium alloy； heat treatment； microstructure； second phase particulars；

【基金】国家自然科学基金(50571056);上海市科委自然基金(04ZR14057);核燃料及材料国家级重点实验室基金;上海市重点学科建设项目(T101)资助

【文献出处】稀有金属材料与工程 ,Rare Metal Materials and Engineering , 编辑部邮箱 ,2007年03期

【分类号】TL341
【被引频次】27
【下载频次】499

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