Investigation on morphology evolution of secondary branch during peritectic solidification in a temperature gradient through morphology characteristic: Experimental measurement and prediction
Investigation on morphology evolution of secondary branch during peritectic solidification in a temperature gradient through morphology characteristic: Experimental measurement and prediction
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通过形貌特征研究温度梯度包晶凝固过程中二次枝的形貌演化：实验测量与预测
DOI：
10.1016/j.matchemphys.2020.123674
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发表时间：
2020-12
影响因子：
4.6
通讯作者：
Yang Jieren
中科院分区：
文献类型：
--
作者：
Peng Peng;Zhang Anqiao;Yue Jinmian;Zhang Xudong;Xu Yuanli;Yang Jieren
尽管二次分支对合金的最终组织和性能有明显的影响，但对其在凝固过程中形态变化的研究还不够。以参数φ为基础，分析了包晶凝固过程中的形态演变。对Sn-Ni和Sn-Mn两种包埋合金的实验测量表明，φ随凝固时间先减小后增大。在包埋反应后，发现包埋凝固过程中的φ最小值。进一步的研究表明。第一个下降，因为它主要是由次生分支的生长在周梢反应之前。其次，由于周梢反应后，二次枝的生长空间受到明显限制，因此主要取决于二次枝的半径。进一步的分析表明，周晶反应后φ随凝固时间的持续增加是由于二次分支的Gibbs-Thomson（G-T）和温度梯度区熔（TGZM）效应共同作用下的重熔/再凝固过程所致。研究还证实，与TGZM效应相比，G-T效应引起的重熔/再凝固过程的重要性较小。结果表明，较厚二次枝晶前后边缘的再凝固导致了围晶凝固过程中φ的“V”型变化。考虑到这些效应的影响的分析预测显示出合理的协议与实验测量。
Despite the obvious influence of the secondary branch on final microstructure and properties of alloy, investigation on the morphology variation of it during solidification is not enough. On the basis of a parameter phi the morphology evolution of it during peritectic solidification was analyzed. Experimental measurements on two peritectic alloys: Sn-Ni and Sn-Mn show that phi first decreases then turns to increase with solidification time. The minimum of phi during peritectic solidification is found after peritectic reaction. Further examination shows that. first decrease because it is mainly determined by the growth of secondary branch before peritectic reaction. Then, it is mainly dependent on the radius of secondary branches since the growth space for them is obviously restricted after peritectic reaction. Further analysis shows that the continuous increase of phi with solidification time after peritectic reaction is caused by the remelting/resolidification process by both the Gibbs-Thomson (G-T) and temperature gradient zone melting (TGZM) effects on secondary branch. It was also confirmed that the remelting/resolidification process by the G-T effect is less important as compared with that by the TGZM effect. As a result, resolidification on both the front and back edges of thicker secondary branches leads to the "V"-type variation of phi during peritectic solidification. The analytical prediction in which the influences of these effects are taken into account shows reasonably agreement with the experimental measurement.
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影响因子：
6.2
作者：
P. Peng
通讯作者：
P. Peng
DOI：
10.1016/0146-3535(83)90022-9
发表时间：
1983
期刊：
Progress in Crystal Growth and Characterization
影响因子：
--
作者：
V. N. Lozovskii;V. Popov
通讯作者：
V. N. Lozovskii;V. Popov
影响因子：
9.4
作者：
André Phillion;M. Založnik;I. Spindler;N. Pinter;C. Aledo;Georges;Salloum-Abou-Jaoude;Henri Nguyen Thi;G. Reinhart;Guillaume;Boussinot;M. Apel
通讯作者：
André Phillion;M. Založnik;I. Spindler;N. Pinter;C. Aledo;Georges;Salloum-Abou-Jaoude;Henri Nguyen Thi;G. Reinhart;Guillaume;Boussinot;M. Apel
影响因子：
6.2
作者：
M. Stange;H. Fjellvåg;S. Furuseth;B. Hauback
通讯作者：
M. Stange;H. Fjellvåg;S. Furuseth;B. Hauback
DOI：
10.1007/s11661-018-4765-2
发表时间：
2018-06
期刊：
Metallurgical and Materials Transactions A
影响因子：
--
作者：
Qi Wang;Ruirun Chen;X. Gong;Jingjie Guo;Yan-Qing Su;H. Ding;H. Fu
通讯作者：
Qi Wang;Ruirun Chen;X. Gong;Jingjie Guo;Yan-Qing Su;H. Ding;H. Fu