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Ni-Al-Sn三元系相平衡的實(shí)驗(yàn)研究
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廈門大學(xué)材料學(xué)院及福建省材料基因工程重點(diǎn)實(shí)驗(yàn)室

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國(guó)家自然科學(xué)基金項(xiàng)目（面上項(xiàng)目，重點(diǎn)項(xiàng)目，重大項(xiàng)目）(51771158, 51471138)、國(guó)家科技部項(xiàng)目(2014DFA53040)


Study of Phase equilibria in the Ni-Al-Sn ternary system
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College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University

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National Natural Science Foundation of China (Grant Nos. 51771158, 51471138), and the Ministry of Science and Technology of China (Grant No. 2014DFA53040)

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    摘要:

    采用電子探針顯微分析和X-ray衍射分析方法實(shí)驗(yàn)研究了Ni-Al-Sn三元體系在800°C和1000°C時(shí)的相平衡。結(jié)果表明：(1) Ni-Al-Sn三元體系在800°C和1000°C時(shí)均未發(fā)現(xiàn)三元化合物；(2) Ni-Al側(cè)包含NiAl、Ni3Al、Al3Ni和Al3Ni2四個(gè)化合物，其中800°C時(shí)，Sn在NiAl和Ni3Al中的固溶度在分別為3.1和14.7 at.%，在1000°C時(shí)分別為3.0和8.0 at.%。而Sn在Al3Ni和Al3Ni2相中幾乎沒有固溶度；(3) Ni-Sn側(cè)包含Ni3Sn(r)、Ni3Sn(h)和Ni3Sn2(h)三個(gè)化合物相。800°C時(shí)，Ni3Sn(r)相的固溶度為4.2 at.%，1000°C時(shí)，Ni3Sn(r)相轉(zhuǎn)變?yōu)镹i3Sn(h)相，擁有5.5 at.% 的固溶度。另外，800°C時(shí)，Al在Ni3Sn2(h)相中的固溶度為8.4 at.%，1000°C時(shí)為12.1 at.%；(4) Ni-Al-Sn三元體系A(chǔ)l-Sn側(cè)為相互貫通的液相區(qū)域，實(shí)驗(yàn)測(cè)得的Ni在Al-Sn側(cè)的溶解度約為1 at.%。

    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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引用本文

劉興軍,吳超,楊木金,楊水源,張錦彬,黃藝雄,王翠萍. Ni-Al-Sn三元系相平衡的實(shí)驗(yàn)研究[J].稀有金屬材料與工程,2019,48(10):3155~3160.[Liuxingjun, Wuchao, Yangmujin, Yangshuiyuan, Zhangjinbin, Huangyixiong, Wangcuiping. Study of Phase equilibria in the Ni-Al-Sn ternary system[J]. Rare Metal Materials and Engineering,2019,48(10):3155~3160.]
DOI：10.12442/j. issn.1002-185X.20180457

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  • 收稿日期:2018-05-05
  • 最后修改日期:2018-05-24
  • 錄用日期:2018-06-15
  • 在線發(fā)布日期: 2019-11-01
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