In Situ Scattering Studies of Crystallization Kinetics in a Phase-Separated Zr-Cu-Fe-Al Bulk Metallic Glass

作     者：Sinan Liu Jiacheng Ge Huiqaing Ying Chenyu Lu Dong Ma Xun-Li Wang Xiaobing Zuo Yang Ren Tao Feng Jun Shen Horst Hahn Si Lan 

作者机构：Herbert Gleiter Institute of NanoscienceSchool of Materials Science and EngineeringNanjing University of Science and Technology200 Xiaolingwei AvenueNanjing210094China Department of PhysicsCity University of Hong Kong83 Tat Chee AvenueKowloon999077Hong Kong SARChina Neutron Sciences PlatformSongshan Lake Materials LaboratoryDongguan523000China Neutron Sciences DirectorateOak Ridge National Laboratory1 Bethel Valley RoadOak RidgeTN37830USA Center of Neutron ScatteringCity University of Hong Kong Shenzhen Research InstituteShenzhen518057China X-Ray Science DivisionArgonne National LaboratoryLemontIL60439USA College of Mechatronics and Control EngineeringShenzhen UniversityShenzhen518060China Institute for NanotechnologyKarlsruhe Institute of Technology76344Eggenstein-LeopoldshafenGermany 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2022年第35卷第1期

页      面：103-114页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51871120,51571170) the Natural Science Foundation of Jiangsu Province(Grant No.BK20200019) the Fundamental Research Funds for the Central Universities(Grant Nos.30919011107 and 30919011404) the Shenzhen Key Project for Basic Research(Grant No.JCYJ20200109105618137) the Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology(Grant No.2019B121205003) 

主　　题：Bulk metallic glass Crystallization kinetics Synchrotron and neutron scattering Phase separation 

摘      要：Thermal stability and the crystallization kinetics of a phase-separated Zr-Cu-Fe-Al bulk metallic glass were investigated using in situ high-energy synchrotron X-ray and neutron diffraction,as well as small-angle synchrotron X-ray *** was revealed that this glass with excellent glass-forming ability possesses a two-step crystallization *** crystalline products and their evolution sequence are more complicated than a homogeneous Zr-Cu-Al glass with average glass-forming *** experimental results indicate that a finely distributed nanometer-sized cubic Zr_(2)Cu phase forms first and then transforms to a tetragonal Zr_(2)Cu phase,while the matrix transforms to an orthorhombic Zr_(3)Fe *** strength of the Zr-Cu-Fe-Al composite containing cubic Zr_(2)Cu phase and glass matrix increases,and the plasticity also improves compared to the as-cast Zr-Cu-Fe-Al bulk metallic *** results suggest that the formation of multiple and complex crystalline products would be the characteristics of the Zr-Cu-Fe-Al glass with better glass-forming *** study may shed light on the synthesis of bulk-sized glass-nanocrystals composites of high strength and good plasticity.