Al-Er-B三元相图773 K等温截面的实验测定
Experimental Determination of 773 K Isothermal Cross Section of Al-Er-B Ternary Phase Diagram
DOI: 10.12677/MS.2023.136056, PDF,    国家自然科学基金支持
作者: 劳政基, 杨杰城, 罗文添, 熊昭栋：广西大学资源环境与材料学院，广西 南宁；林郭强*：广西大学资源环境与材料学院，广西 南宁；广西高校高性能结构材料及热表加工重点实验室，广西 南宁
关键词: 铝合金；稀土；三元相图；等温截面； Aluminum Alloy； Rare Earth； Ternary Phase Diagram； Isothermal Cross-Section
摘要: 使用真空电弧炉熔炼了不同成分的Al-Er-B合金，将合金放入石英玻璃管中抽真空后，在773 K的温度下保温720 h，然后使用冰水进行水淬。运用X射线衍射、金相分析等方法对退火720 h的合金试样进行了研究。测定了Al-Er-B三元相图773 K等温截面。实验结果表明，该等温截面包含以下3个三相区：第一个三相区为AlEr、Al2Er3、ErB2，第二个三相区为Al3Er、Al2Er、ErB4，第三个三相区为Al、Al3Er、ErB4。
Abstract: Al-Er-B alloys with different compositions were melted using a vacuum arc fur-nace. The alloy was placed in a quartz glass tube for vacuum extraction and kept at a temperature of 773 K for 720 hours. Then, it was quenched with ice water. The alloy samples annealed for 720 h were studied by means of X-ray diffraction and metallographic analysis. The isothermal cross-section of the Al-Er-B ternary phase diagram at 773 K was determined. The experimental results show that the isothermal crosssection consists of three three-phase regions: the first three-phase region is AlEr, Al2Er3, and ErB2, the second three-phase region is Al3Er, Al2Er, and ErB4, and the third three-phase region is Al, Al3Er and ErB4.
文章引用：劳政基, 杨杰城, 罗文添, 熊昭栋, 林郭强. Al-Er-B三元相图773 K等温截面的实验测定[J]. 材料科学, 2023, 13(6): 529-535. https://doi.org/10.12677/MS.2023.136056

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