Microstructure and mechanical properties of Cu50Zr42Al8 bulk metallic glass

	Microstructure and mechanical properties of Cu50Zr42Al8 bulk metallic glass
	Zhao, Yan-Chun 1; Kou, Sheng-Zhong 1,2; Wang, Ren-Jun 1; Suo, Hong-Li 2; Ding, Yu-Tian 1
刊名	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
	2010-09-01
卷号	31 期号:9 页码:60-63
关键词	Aluminum Compressive strength Cooling Differential scanning calorimetry Fracture Glass Mechanical properties Microstructure Optical microscopy Plastic deformation X ray diffraction Zirconium Amorphous regions Bulk glassy alloy Bulk metallic glass Compressive fracture strength Cooling rates Critical diameter Crystal region Crystalline phasis Crystallizing phasis Cu-based Elastic strain Fracture behavior Microstructure and mechanical properties Plastic strain Transition regions Yielding strength
ISSN号	10096264
英文摘要	Cu50Zr42Al8 bulk metallic glass(BMG) was prepared and microstructure of Cu50Zr42Al8 tapered sample was characterized by means of X-ray diffraction, differential scanning calorimetry and optical microscopy. The relative dimension of surface amorphous region, center crystal region and transition region between the two regions on different section of the tapered sample is strongly determinated by the cooling rate of solidification. The critical diameter of the bulk glassy alloy Cu50Zr42Al8 is up to 4.8 mm. The φ4 mm BMG exhibits high compressive fracture strength of 2260 MPa with elastic srtain of 2.0% and plastic strain of 0.4%. The mechanical properties of Cu50Zr42Al8 bulk metallic glass and its composite containing CuZr and Cu10Zr7 crystalline phases were also discussed. The φ5 mm BMG composite exhibits a combination of high compressive fracture strength (1849 MPa) and yielding strength (1670 MPa) with elastic strain of 1.6% and plastic strain of 1.9%, the final fracture behavior of the glass is controlled by competition of the two crystallizing phases.
语种	英语
出版者	Editorial Office of Transactions of Materials, 18 Xueqing Road, Beijing, 100083, China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111753]
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
作者单位	1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; 2.The Key Laboratory of Advanced Functional Materials, Beijing University of Technology, Beijing 100022, China
推荐引用方式 GB/T 7714	Zhao, Yan-Chun,Kou, Sheng-Zhong,Wang, Ren-Jun,et al. Microstructure and mechanical properties of Cu50Zr42Al8 bulk metallic glass[J]. Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,2010,31(9):60-63.
APA	Zhao, Yan-Chun,Kou, Sheng-Zhong,Wang, Ren-Jun,Suo, Hong-Li,&Ding, Yu-Tian.(2010).Microstructure and mechanical properties of Cu50Zr42Al8 bulk metallic glass.Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,31(9),60-63.
MLA	Zhao, Yan-Chun,et al."Microstructure and mechanical properties of Cu50Zr42Al8 bulk metallic glass".Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 31.9(2010):60-63.