南方科技大学知识苑(SUSTech KC): Effect of re addition on the solidified process and microstructure of Al-7Si-0.3Mg alloys

题名	Effect of re addition on the solidified process and microstructure of Al-7Si-0.3Mg alloys
作者	Li，Longfei 1,2; Li，Daquan 1; Hu，Xiaogang3 ; Feng，Jian 1; Zhang，Yongzhong 1; Kang，Yonglin 2
DOI	10.4028/www.scientific.net/MSF.993.45
发表日期	2020
ISSN	0255-5476
EISSN	1662-9752
会议录名称	MATER SCI FORUM
卷号	993 MSF
页码	45-52
摘要	The solidification process and microstructure of Al-7Si-0.3Mg alloy with different rare earth (RE) additions have been studied by using thermal analysis, optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis. The results showed that the addition of RE enhanced the liquidus temperature and decreased the growth temperature of eutectic Si, which lead to obvious increase in solidification interval of the studied alloy. In addition, the grain size of primary α-Al had no obvious change, and the mean area of eutectic Si particles decreased with increasing RE content to 1.6 wt.%. The RE-rich compounds with different compositions were obtained with increasing RE concentration in Al-7Si-0.3Mg alloys. The method of phase diagram calculation helps to clarify the formation and growth mechamism of different RE-rich phases during solidification.
关键词	Aluminum alloy Eutectic Si Rare earth RE-rich compounds
学校署名	其他
语种	英语
相关链接	[Scopus记录]
收录类别	EI
EI入藏号	20202708891565
EI主题词	Scanning electron microscopy ; X ray diffraction analysis ; Aluminum alloys ; Thermoanalysis ; Magnesium alloys ; Microstructure ; Solidification ; Silicon alloys ; Particle size analysis ; Eutectics
EI分类号	Metallography:531.2 ; Aluminum Alloys:541.2 ; Magnesium and Alloys:542.2 ; Alkaline Earth Metals:549.2 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Chemistry:801 ; Chemical Operations:802.3 ; Inorganic Compounds:804.2 ; Materials Science:951
Scopus记录号	2-s2.0-85087162045
来源库	Scopus
引用统计	被引频次[WOS]：0
成果类型	会议论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/140548
专题	南方科技大学工学院_机械与能源工程系
作者单位	1.General Research Institute for Nonferrous Metals,Beijing,China 2.University of Science and Technology Beijing,Beijing,China 3.Southern University of Science and Technology,Shenzhen,China
推荐引用方式 GB/T 7714	Li，Longfei,Li，Daquan,Hu，Xiaogang,et al. Effect of re addition on the solidified process and microstructure of Al-7Si-0.3Mg alloys[C],2020:45-52.