Analysis on phase nucleation in Sn-Ni peritectic alloy combining confocal laser scanning in-situ observation and differential scanning calorimetry

doi:10.1016/j.jallcom.2021.163037

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	Analysis on phase nucleation in Sn-Ni peritectic alloy combining confocal laser scanning in-situ observation and differential scanning calorimetry
	Peng, Peng 1,3; Chen, Weiqi 4; Xu, Yuanli 3; Zhang, Xudong 3; Li, Yuandong 2; Wang, Jiatai 1
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2022-03-25
卷号	898
关键词	Peritectic solidification HT -CL SM DSC analysis Phase nucleation Wetting angle
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2021.163037
英文摘要	The analysis of the phase nucleation requires not only the in-situ images but also the accurate nucleation information. Thus, the nucleation of both the primary Ni3Sn2 and peritectic Ni3Sn4 phases were studied during peritectic solidification of Sn-Ni alloy using the high temperature confocal laser scanning microscope (HT-CL SM) and differential scanning calorimetry (DSC). The results by both methods confirm that the nucleation undercooling increment T of the solid phases decrease with increasing cooling rates, which is demonstrated to be caused by higher concentration difference at larger cooling rates. Besides, the freezing range of the alloy is also found to decrease with the increase in cooling rate. However, the nucleation undercooling of the peritectic Ni3Sn4 phase determined by HT-CL SM is larger than that by DSC at each cooling rate. This is attributed to the slower capture of peritectic reaction when using HT-CLSM. Furthermore, the nucleation of peritectic Ni3Sn4 phase is confirmed to be controlled by the heterogeneous nucleation on primary Ni3Sn2 phase by comparison between the HT-CL SM observation and DSC result. In addition, the wetting angles for heterogeneous nucleation of both phases which are important parameters in analyzing the nucleation of solid phases were determined through the entropy of solidification data from the DSC results. The smaller wetting angle of peritectic Ni3Sn4 phase as compared with that of the primary Ni3Sn2 phase further proving the smaller nucleation undercooling of Ni3Sn4 phase during solidification. (c) 2021 Elsevier B.V. All rights reserved.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000749494300002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154771]
专题	兰州理工大学
作者单位	1.Qinghai Normal Univ, Sch Phys & Elect Informat Engn, Xining 753000, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730000, Peoples R China 3.Lanzhou Univ, Sch Mat & Energy, Lanzhou 730000, Peoples R China; 4.Gansu Inst Metrol, Lanzhou 730000, Peoples R China;
推荐引用方式 GB/T 7714	Peng, Peng,Chen, Weiqi,Xu, Yuanli,et al. Analysis on phase nucleation in Sn-Ni peritectic alloy combining confocal laser scanning in-situ observation and differential scanning calorimetry[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,898.
APA	Peng, Peng,Chen, Weiqi,Xu, Yuanli,Zhang, Xudong,Li, Yuandong,&Wang, Jiatai.(2022).Analysis on phase nucleation in Sn-Ni peritectic alloy combining confocal laser scanning in-situ observation and differential scanning calorimetry.JOURNAL OF ALLOYS AND COMPOUNDS,898.
MLA	Peng, Peng,et al."Analysis on phase nucleation in Sn-Ni peritectic alloy combining confocal laser scanning in-situ observation and differential scanning calorimetry".JOURNAL OF ALLOYS AND COMPOUNDS 898(2022).