The dual-species model study of co-enrichment of trace elements and Ni at Ni3Al grain boundary

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	The dual-species model study of co-enrichment of trace elements and Ni at Ni3Al grain boundary
	L. P. Zheng ; D. X. Li ; Z. J. Xu ; Z. Y. Zhu
刊名	Acta Physica Sinica
	2007
卷号	56 期号:3 页码:1520-1525
关键词	segregating and inducing species bulk effects co-enrichment at grain boundary grain boundary cohesion molecular-dynamics simulation mg segregation superalloys metals boron
ISSN号	1000-3290
中文摘要	The dual-species model is based on the Monte Carlo simulation conjoined with the embedded atom method (EAM) potentials. The model suggests that during relaxation of Ni-3 Al grain boundary, the trace element atoms can be seen not only as segregating species but also as inducing species. As segregating species the trace element atoms segregate (or enrich) to the grain boundary, but as inducing species they induce Ni atoms to segregate (or enrich) to the grain boundary. Evidently, the model can explain why the trace element atoms and Ni atoms co-segregate (or co-enrich) to the grain boundary. According to combination of positive (as inducing species) and negative (as segregating species) effects, the model explains the most obvious Ni-enrichment phenomenon at Ni-3 Al grain boundaries.
原文出处	://WOS:000244849500047
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/34083]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	L. P. Zheng,D. X. Li,Z. J. Xu,et al. The dual-species model study of co-enrichment of trace elements and Ni at Ni3Al grain boundary[J]. Acta Physica Sinica,2007,56(3):1520-1525.
APA	L. P. Zheng,D. X. Li,Z. J. Xu,&Z. Y. Zhu.(2007).The dual-species model study of co-enrichment of trace elements and Ni at Ni3Al grain boundary.Acta Physica Sinica,56(3),1520-1525.
MLA	L. P. Zheng,et al."The dual-species model study of co-enrichment of trace elements and Ni at Ni3Al grain boundary".Acta Physica Sinica 56.3(2007):1520-1525.