Effects of Dy, Sr and Die Casting on Microstructure, Mechanical and Corrosion Properties of Mg-Dy-Sr-Nd-Zr Alloys

doi:10.1007/s11665-017-2850-0

	Effects of Dy, Sr and Die Casting on Microstructure, Mechanical and Corrosion Properties of Mg-Dy-Sr-Nd-Zr Alloys
	Liu, Dexue 1,2; Yin, Xunyan 1,2; Pang, Xin 1,2; Hu, Shiwen 1,2; Ding, Yutian 1,2
刊名	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
	2017-08
卷号	26 期号:8 页码:3983-3992
关键词	resorbable Mg-Dy-Sr-Nd-Zr alloys die casting microstructure mechanical properties corrosion resistance
ISSN号	1059-9495
DOI	10.1007/s11665-017-2850-0
英文摘要	By adding 2, 6 and 10 wt.% Dy and 0.5, 1.5 and 2 wt.% Sr elements to Mg-2.4Nd-0.5Zr alloys and adopting die-casting process for biomedical Mg-10Dy-0.5Sr-2.4Nd-0.5Zr alloys, the effects of Dy and Sr elements and die-casting process on the microstructure, mechanical properties and corrosion resistance of Mg-Dy-Sr-Nd-Zr alloys were investigated. The new biomedical Mg-10Dy-0.5Sr-2.4Nd-0.5Zr alloys were designed, and the grain size of the as-cast new alloy was refined to similar to 70 mu m and distributed equably. The ultimate tensile strength increased with increasing Dy content and decreasing Sr content. The corrosion rate decreased firstly and then increased with increasing Dy content and decreased with increasing Sr content. By adjusting the content of Sr and Dy, the ultimate tensile strength of as-cast new Mg-10Dy-0.5Sr-2.4Nd-0.5Zr alloys increased to 203 MPa, elongation was 7.4%, and the corrosion rate decreased to 0.48 mm/a. The elongation rate increased to 10.2% after the new biomedical alloys were processed by die casting with an refine-grained microstructure of similar to 18 mu m, meanwhile the ultimate tensile strength decreased to 180 MPa, and the corrosion rate was 1.29 mm/a.
资助项目	National Nature Science Foundation of China[51365029][51664041] ; Program for Support Projects of Science and Technology in Gansu Province[1604GKCA038]
WOS研究方向	Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000407994400037
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33158]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Liu, Dexue
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Me, Langongping Rd 287, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Langongping Rd 287, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Liu, Dexue,Yin, Xunyan,Pang, Xin,et al. Effects of Dy, Sr and Die Casting on Microstructure, Mechanical and Corrosion Properties of Mg-Dy-Sr-Nd-Zr Alloys[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2017,26(8):3983-3992.
APA	Liu, Dexue,Yin, Xunyan,Pang, Xin,Hu, Shiwen,&Ding, Yutian.(2017).Effects of Dy, Sr and Die Casting on Microstructure, Mechanical and Corrosion Properties of Mg-Dy-Sr-Nd-Zr Alloys.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,26(8),3983-3992.
MLA	Liu, Dexue,et al."Effects of Dy, Sr and Die Casting on Microstructure, Mechanical and Corrosion Properties of Mg-Dy-Sr-Nd-Zr Alloys".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 26.8(2017):3983-3992.