Effect of friction stir processing on hardness and microstructure in La-based bulk metallic glass composites

doi:10.2320/matertrans.M2019004

	Effect of friction stir processing on hardness and microstructure in La-based bulk metallic glass composites
	Zhang, Xiangyun 1; Jiao, Dong 1; Li, Shixia 2; Li, Chunyan 1; Yuan, Zizhou 1
刊名	Materials Transactions
	2019
卷号	60 期号:6 页码:969-974
关键词	Aluminum alloys Composite materials Copper alloys Creep Friction Glass Lanthanum alloys Microhardness Microstructure Nanocrystalline materials Nanoindentation Bulk metallic glass composites Crystalline particles Friction stir processing Generalized kelvin models Micro-structural observations Microhardness measurement Nanoindentation tests Rotating direction
ISSN号	13459678
DOI	10.2320/matertrans.M2019004
英文摘要	Friction stir processing (FSP) was conducted on a 2.5 mm thick La66Al14Cu20 bulk metallic glass composites (BMGCs) plate. Effects of FSP on the BMGCs have been investigated. Microstructural observations indicated that the crystalline particles were elongated and parallel to the rotating direction of the pin after FSP. Micro-hardness measurement showed that hardness of the stirred zone drops down approximately 50 Hv compared with the as-cast sample. The mechanical properties of the amorphous matrix before and after FSP have been investigated using nanoindentation test. Results shown that creep displacement-time curves of the BMGCs before and after FSP can be accurately fitted by the generalized Kelvin model which was usually used in polymeric materials. The creep compliance and creep retardation spectrum shown that the as-cast specimen is in a more relaxed state. © 2019 The Japan Institute of Metals and Materials.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	Japan Institute of Metals (JIM)
WOS记录号	WOS:000472621500020
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113988]
专题	材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Gansu Iron and Steel Vocational Technical College, Jiayuguan; 735100, China
推荐引用方式 GB/T 7714	Zhang, Xiangyun,Jiao, Dong,Li, Shixia,et al. Effect of friction stir processing on hardness and microstructure in La-based bulk metallic glass composites[J]. Materials Transactions,2019,60(6):969-974.
APA	Zhang, Xiangyun,Jiao, Dong,Li, Shixia,Li, Chunyan,&Yuan, Zizhou.(2019).Effect of friction stir processing on hardness and microstructure in La-based bulk metallic glass composites.Materials Transactions,60(6),969-974.
MLA	Zhang, Xiangyun,et al."Effect of friction stir processing on hardness and microstructure in La-based bulk metallic glass composites".Materials Transactions 60.6(2019):969-974.