论文摘要
Mg-Zn-Zr series Mg alloys（ZK） are one of the most important commercial Mg alloys due to their good comprehensive mechanical properties. The phase equilibria of the Mg-Zn-Zr system at 400 ℃ covering the overall composition range were investigated by X-ray diffraction and electron probe microanalyses on thirteen ternary alloys. Three ternary compounds, τ1, τ2 and τ3, were detected to be thermodynamically stable at 400 ℃, and their homogeneity range was determined to be Mg（7-17）Zn（80-88）Zr（4-6）, Mg（15-22）Zn（66-65）Zr（9-16） and Mg9Zn68Zr23（in at.%）, respectively. Eight three-phase regions and four two-phase regions were observed. The maximum solubility of Mg in Zn22 Zr, Zn39Zr5 and Zn3 Zr phases was measured to be 0.52, 0.37 and 0.99 at.%, respectively, while the solubility of Zr in MgZn2 and Mg2Zn3 phases is negligible. The isothermal section of the Mg-Zn-Zr system at 400 ℃ was then constructed based on the present experimental data.
论文目录
文章来源
类型: 期刊论文
作者: Yong-Peng Liang,Shu-Hong Liu,Kai Xu,Yong Du
来源: Acta Metallurgica Sinica(English Letters) 2019年04期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 金属学及金属工艺
单位: State Key Lab of Powder Metallurgy,Central South University,School of Materials Science and Engineering,Central South University
基金: The financial supports from the National Key Research and Development Plan (No. 2016YFB0701202),the National Natural Science Foundation of China (Grant No. 51771235)
分类号: TG146.22
页码: 426-432
总页数: 7
文件大小: 652K
下载量: 7
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