Role of hydrostatic pressure and wall effect in solidification of TC8 alloy

doi:10.1038/s41526-019-0083-2

IMR OpenIR

	Role of hydrostatic pressure and wall effect in solidification of TC8 alloy
	Luo, Xinghong; Wang, Yaya; Li, Yang
通讯作者	Luo, Xinghong(xhluo@imr.ac.cn)
	2019-10-11
发表期刊	NPJ MICROGRAVITY
ISSN	2373-8065
卷号	5 页码:5
摘要	The solidification experiments of TC8 alloy under both microgravity and normal gravity were conducted using a drop tube. The solidification microstructure were found composed of fine equiaxed grains formed at early stage and bigger elongated grains formed at later stage. Between the two kinds of grains a curved transition interface was observed in 1g sample, while that in mu g sample was almost flat. Generally, the amounts and aspect ratios of the grains are larger, and the grain sizes are smaller in 1g sample. Besides, no visible element macrosegregation occurred in both samples. The results suggest that the solidification velocities of the samples were rapid, and consequently the convection effect and solute transport effect caused by gravity had little influence on the solidification microstructure. Therefore, the solidification process was mainly controlled by thermal diffusion, and hydrostatic pressure and wall effect played a great role in it.
资助者	Chinese manned space flight pre-research project
DOI	10.1038/s41526-019-0083-2
收录类别	SCI
语种	英语
资助项目	Chinese manned space flight pre-research project[030302]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000490596600002
出版者	SPRINGERNATURE
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/135715
专题	中国科学院金属研究所
通讯作者	Luo, Xinghong
作者单位	Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Luo, Xinghong,Wang, Yaya,Li, Yang. Role of hydrostatic pressure and wall effect in solidification of TC8 alloy[J]. NPJ MICROGRAVITY,2019,5:5.
APA	Luo, Xinghong,Wang, Yaya,&Li, Yang.(2019).Role of hydrostatic pressure and wall effect in solidification of TC8 alloy.NPJ MICROGRAVITY,5,5.
MLA	Luo, Xinghong,et al."Role of hydrostatic pressure and wall effect in solidification of TC8 alloy".NPJ MICROGRAVITY 5(2019):5.