兰州大学机构库 >物理科学与技术学院
Analysis on fluid permeability of dendritic mushy zone during peritectic solidification in a temperature gradient
Peng Peng(彭鹏)1,2; Yue, Jinmian1,2; Zhang, Anqiao1,2; Zhang, XD(张旭东)1,2; Xu, YL(徐远丽)1,2
2021-04-30
Source PublicationJournal of Materials Science and Technology
ISSN10050302
Volume71Pages:169-176
AbstractCompared with the growing applications of peritectic alloys, none research on the fluid permeability K of dendritic network during peritectic solidification has been reported before. The fluid permeability K of dendritic network in the mushy zone during directional solidification of Sn-Ni peritectic alloy was investigated in this study. Examination on the experimental results demonstrates that both the temperature gradient zone melting (TGZM) and Gibbs-Thomson (GT) effects have obvious influences on the morphology of dendritic network during directional solidification. This is realized through different stages of liquid diffusion within dendritic mushy zone by these effects during directional solidification. The TGZM effect is demonstrated to play a more important role as compared with the GT effect during directional solidification. Besides, it is shown that the evolution of dendrite network is more complex during peritectic solidification due to the involvement of the peritectic phase. Through the specific surface SV, analytical expression based on the CarmanKozeny model was proposed to analyze the fluid permeability of dendritic mushy zone in directionally solidified peritectic alloys. In addition, it is interesting to find a rise in permeability K after peritectic reaction in both theoretical predication and experimental results, which is different from that in other alloys. The theoretical predictions show that this rise in fluid permeability K after peritectic reaction is caused by the remelting/resolidification process on dendritic structure by the TGZM and GT effects during peritectic solidification. © 2020
KeywordBinary alloys Diffusion in liquids Morphology Nickel alloys Thermal gradients Tin alloysAnalytical expressions Dendritic networks Dendritic structures Directionally solidified Fluid permeability Peritectic alloys Peritectic reaction Peritectic solidification
PublisherChinese Society of Metals
DOI10.1016/j.jmst.2020.08.044
Indexed ByEI
Language英语
EI Accession Number20204109332712
EI KeywordsSolidification
EI Classification Number546.2 Tin and Alloys ; 548.2 Nickel Alloys ; 641.1 Thermodynamics ; 802.3 Chemical Operations ; 951 Materials Science
Citation statistics
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/440596
Collection物理科学与技术学院
Corresponding AuthorPeng, Peng
Affiliation1.Institute of Materials Science and Engineering, Lanzhou University, Lanzhou; 730000, China;
2.School of Physical Science and Technology, Lanzhou University, Lanzhou; 730000, China
First Author AffilicationSchool of Physical Sicence and Technology;  Lanzhou University
Corresponding Author AffilicationSchool of Physical Sicence and Technology;  Lanzhou University
Recommended Citation
GB/T 7714
Peng, Peng,Yue, Jinmian,Zhang, Anqiao,et al. Analysis on fluid permeability of dendritic mushy zone during peritectic solidification in a temperature gradient[J]. Journal of Materials Science and Technology,2021,71:169-176.
APA Peng, Peng,Yue, Jinmian,Zhang, Anqiao,Zhang, Xudong,&Xu, Yuanli.(2021).Analysis on fluid permeability of dendritic mushy zone during peritectic solidification in a temperature gradient.Journal of Materials Science and Technology,71,169-176.
MLA Peng, Peng,et al."Analysis on fluid permeability of dendritic mushy zone during peritectic solidification in a temperature gradient".Journal of Materials Science and Technology 71(2021):169-176.
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