Isothermal nanocrystallization behavior of bulk metallic glass composites in supercooled liquid region

doi:10.1007/s12598-014-0358-4

	Isothermal nanocrystallization behavior of bulk metallic glass composites in supercooled liquid region
	Zhang, Xiang-Yun; Yuan, Zi-Zhou; Feng, Xue-Lei; Cui, Li-Zhi; Li, Duan-Xian
刊名	RARE METALS
	2017-11
卷号	36 期号:11 页码:919-924
关键词	Composite Bulk metallic glasses Thermal stability Heat treatment Crystallization
ISSN号	1001-0521
DOI	10.1007/s12598-014-0358-4
英文摘要	Bulk metallic glass composites (BMGCs) reinforced by micro- (spherical size of about 10 mu m) and nano-sized (20-50 nm) Al3Zr crystals were synthesized by copper mold suction casting method. The isothermal crystallization of Cu40Zr44Ag8Al8 BMGCs in the supercooled liquid region was studied by differential scanning calorimeter (DSC), X-ray diffractometer (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The mechanisms for nucleation and growth of the crystalline phases precipitated in two-stage crystallization process and the effect of the isothermal treatment on the in situ crystalline phases were discussed. Results show that the BMGCs experience a primary crystallization process. Nano-sized Al3Zr and Cu10Zr7 phases precipitate from the amorphous matrix successively. Furthermore, isothermal annealing has no effect on the pre-existing particles in the as-cast sample, which creates a new method to synthesize BMGCs strengthened by duplex crystalline phases with a large size difference. And the reinforced phase could also be dominated with intention if the as-cast BMGCs preparation and isothermal treatment process can be controlled more accurately.
资助项目	National Natural Science Foundation of China[51061008][50961008]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NONFERROUS METALS SOC CHINA
WOS记录号	WOS:000413105500011
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33030]
专题	材料科学与工程学院
通讯作者	Yuan, Zi-Zhou
作者单位	Lanzhou Univ Technol, State Key Lab Adv Nonferrous Mat, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiang-Yun,Yuan, Zi-Zhou,Feng, Xue-Lei,et al. Isothermal nanocrystallization behavior of bulk metallic glass composites in supercooled liquid region[J]. RARE METALS,2017,36(11):919-924.
APA	Zhang, Xiang-Yun,Yuan, Zi-Zhou,Feng, Xue-Lei,Cui, Li-Zhi,&Li, Duan-Xian.(2017).Isothermal nanocrystallization behavior of bulk metallic glass composites in supercooled liquid region.RARE METALS,36(11),919-924.
MLA	Zhang, Xiang-Yun,et al."Isothermal nanocrystallization behavior of bulk metallic glass composites in supercooled liquid region".RARE METALS 36.11(2017):919-924.