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

作者簡介:

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中圖分類號:

TG113

基金項(xiàng)目:

國家自然科學(xué)基金項(xiàng)目（面上項(xiàng)目，重點(diǎn)項(xiàng)目，重大項(xiàng)目）；國家自然科學(xué)基金促進(jìn)海峽兩岸科技合作聯(lián)合基金


Experimental Investigation of the Phase Equilibria in the Ni-Co-Sn Ternary System
Author:
Affiliation:

College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University, Xiamen

Fund Project:

National Natural Science Foundation of China (Grant No. 51771158), and Joint Fund to Promote Cross-Strait Scientific and Technological (Grant No. U1605243)

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    摘要:

    本實(shí)驗(yàn)通過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-Co-Sn三元體系在700°C和1000°C時(shí)的相平衡。在這兩個(gè)溫度截面中均未發(fā)現(xiàn)三元化合物。βCo3Sn2相和Ni3Sn2（h）相形成了一個(gè)貫穿連續(xù)固溶體相。Ni-Sn側(cè)包含Ni3Sn（l）、Ni3Sn（h）和Ni3Sn4三個(gè)化合物相，它們中Sn的固溶度是有很大區(qū)別的。700°C時(shí)，Co在Ni3Sn（l）和Ni3Sn4中的最大固溶度在分別約為6.9 at.%和25.6 at.%，在1000°C時(shí)，Co在Ni3Sn（h）中的最大固溶度約為15.5 at.%。在700℃和1000℃下，Ni-Co側(cè)的（αCo，Ni）相為一個(gè)貫穿連續(xù)固溶體相，并且Sn在（αCo，Ni）相中的固溶度約為1 at.% ~10.5 at.%。Ni在線性化合物CoSn相中的溶解度約為15.9 at.%。

    Abstract:

    Phase equilibria of the Ni-Co-Sn ternary system at 700 °C and 1000 °C were experimentally determined by using electron probe microanalyzer and X-ray diffraction. No ternary compound was found at 700 °C and 1000 °C. There was an extensive region of mutual solubility existing between βCo3Sn2 phase and Ni3Sn2(h) phase. Three Ni-Sn binary compounds [Ni3Sn(l), Ni3Sn(h) and Ni3Sn4] showed absolutely different solubilities for the element Co. The maximum solubility of Co in Ni3Sn(l) and Ni3Sn4 phases at 700°C were 6.9 at.% and 25.6 at.%, and the solubility of Ni3Sn(h) phases changed into 15.5 at.% at 1000°C. The Ni-Co side presented an interconnected (αCo, Ni) phase region at both 700oC and 1000°C and its homogeneity range for Sn was from 1 at.% to 10.5 at.%. The solubility of Ni in the linear compound CoSn phase was about 15.9 at.%.

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引用本文

劉興軍,鄧育靈,張錦彬,楊木金,楊水源,韓佳甲,盧勇,王翠萍. Ni-Co-Sn三元系相平衡的實(shí)驗(yàn)研究[J].稀有金屬材料與工程,2020,49(5):1539~1545.[Liu Xingjun, Deng Yuling, Zhang Jinbin, Yang Mujin, Yang Shuiyuan, Han Jiajia, Lu Yong, wangcuiping. Experimental Investigation of the Phase Equilibria in the Ni-Co-Sn Ternary System[J]. Rare Metal Materials and Engineering,2020,49(5):1539~1545.]
DOI：10.12442/j. issn.1002-185X.20181273

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  • 收稿日期:2018-12-21
  • 最后修改日期:2019-01-13
  • 錄用日期:2019-02-21
  • 在線發(fā)布日期: 2020-06-05
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