| Ni-Al-Sn三元系相平衡的实验研究 |
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| 引用本文： | 刘兴军,吴超,杨木金,杨水源,张锦彬,黄艺雄,王翠萍. Ni-Al-Sn三元系相平衡的实验研究[J]. 稀有金属材料与工程, 2019, 48(10): 3155-3160 |
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| 作者姓名： | 刘兴军 吴超 杨木金 杨水源 张锦彬 黄艺雄 王翠萍 |
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| 作者单位： | 厦门大学材料学院及福建省材料基因工程重点实验室,厦门大学材料学院及福建省材料基因工程重点实验室,厦门大学材料学院及福建省材料基因工程重点实验室,厦门大学材料学院及福建省材料基因工程重点实验室,厦门大学材料学院及福建省材料基因工程重点实验室,厦门大学材料学院及福建省材料基因工程重点实验室,厦门大学材料学院及福建省材料基因工程重点实验室 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目）(51771158, 51471138)、国家科技部项目(2014DFA53040) |
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| 摘 要： | 采用电子探针显微分析和X-ray衍射分析方法实验研究了Ni-Al-Sn三元体系在800°C和1000°C时的相平衡。结果表明：(1) Ni-Al-Sn三元体系在800°C和1000°C时均未发现三元化合物；(2) Ni-Al侧包含NiAl、Ni3Al、Al3Ni和Al3Ni2四个化合物，其中800°C时，Sn在NiAl和Ni3Al中的固溶度在分别为3.1和14.7 at.%，在1000°C时分别为3.0和8.0 at.%。而Sn在Al3Ni和Al3Ni2相中几乎没有固溶度；(3) Ni-Sn侧包含Ni3Sn(r)、Ni3Sn(h)和Ni3Sn2(h)三个化合物相。800°C时，Ni3Sn(r)相的固溶度为4.2 at.%，1000°C时，Ni3Sn(r)相转变为Ni3Sn(h)相，拥有5.5 at.% 的固溶度。另外，800°C时，Al在Ni3Sn2(h)相中的固溶度为8.4 at.%，1000°C时为12.1 at.%；(4) Ni-Al-Sn三元体系Al-Sn侧为相互贯通的液相区域，实验测得的Ni在Al-Sn侧的溶解度约为1 at.%。
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| 关 键 词： | Ni-Al-Sn三元系 相平衡 固溶度 电子探针显微分析 |
| 收稿时间： | 2018-05-05 |
| 修稿时间： | 2018-05-24 |
Study of Phase equilibria in the Ni-Al-Sn ternary system |
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| Liuxingjun,Wuchao,Yangmujin,Yangshuiyuan,Zhangjinbin,Huangyixiong and Wangcuiping. Study of Phase equilibria in the Ni-Al-Sn ternary system[J]. Rare Metal Materials and Engineering, 2019, 48(10): 3155-3160 |
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| Authors: | Liuxingjun Wuchao Yangmujin Yangshuiyuan Zhangjinbin Huangyixiong Wangcuiping |
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| Affiliation: | College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University,College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University,College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University,College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University,College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University,College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University,College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University |
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| Abstract: | The phase equilibria in the Ni-Al-Sn ternary system were investigated by means of electron probe microanalysis and X-ray diffraction. The experimental results showed that: (1) No ternary compound was found at 800°C and 1000°C. (2) The Ni-Al side presented four binary compounds included NiAl, Ni3Al, Al3Ni and Al3Ni2 phases. The solubilities of Sn in the binary NiAl and Ni3Al phases were determined as 3.1 at.% (Atomic ratio) and 14.7 at.% at 800°C, and 3.0 at.% and 8.0 at.% at 1000°C, respectively. As for the binary Al3Ni and Al3Ni2 phases, the solubilities of Sn were almost negligible. (3) The Ni-Sn side displayed three binary compounds included Ni3Sn(r), Ni3Sn(h) and Ni3Sn2(h). The Ni3Sn(r) phase was stable at 800°C dissolving 4.2 at.% Al but it was replaced by the Ni3Sn(h) phase with a 5.5 at.% Al solubility at 1000°C. The solid solubility of Al in Ni3Sn2(h) was 8.4 at.% and 12.1 at.% at 800°C and 1000°C respectively. (4) The Al-Sn side was occupied by an interconnected liquid region having only ~1 at.% Ni solubility. |
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| Keywords: | Ni-Al-Sn ternary system phase equilibria ternary solubility electron probe microanalysis |
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