title: Local melting to design strong and plastically deformable bulk metallic glass composites.
abstract: Recently, CuZr-based bulk metallic glass (BMG) composites reinforced by the TRIP (transformation-induced plasticity) effect have been explored in attempt to accomplish an optimal of trade-off between strength and ductility. However, the design of such BMG composites with advanced mechanical properties still remains a big challenge for materials engineering. In this work, we proposed a technique of instantaneously and locally arc-melting BMG plate to artificially induce the precipitation of B2 crystals in the glassy matrix and then to tune mechanical properties. Through adjusting local melting process parameters (i.e. input powers, local melting positions, and distances between the electrode and amorphous plate), the size, volume fraction, and distribution of B2 crystals were well tailored and the corresponding formation mechanism was clearly clarified. The resultant BMG composites exhibit large compressive plasticity and high strength together with obvious work-hardening ability. This compelling approach could be of great significance for the steady development of metastable CuZr-based alloys with excellent mechanical properties.
authors.affiliation: School of Mechanical, Electrical &Information Engineering, Shandong University (Weihai), Wenhua Xilu 180, 264209 Weihai, P.R. China.
authors.forename: Yue-Sheng
authors.initials: YS
authors.lastname: Qin
authors.affiliation: School of Mechanical, Electrical &Information Engineering, Shandong University (Weihai), Wenhua Xilu 180, 264209 Weihai, P.R. China.
authors.forename: Xiao-Liang
authors.initials: XL
authors.lastname: Han
authors.affiliation: School of Mechanical, Electrical &Information Engineering, Shandong University (Weihai), Wenhua Xilu 180, 264209 Weihai, P.R. China.
authors.forename: Kai-Kai
authors.initials: KK
authors.lastname: Song
authors.affiliation: School of Mechanical, Electrical &Information Engineering, Shandong University (Weihai), Wenhua Xilu 180, 264209 Weihai, P.R. China.
authors.forename: Yu-Hao
authors.initials: YH
authors.lastname: Tian
authors.affiliation: School of Mechanical, Electrical &Information Engineering, Shandong University (Weihai), Wenhua Xilu 180, 264209 Weihai, P.R. China.
authors.forename: Chuan-Xiao
authors.initials: CX
authors.lastname: Peng
authors.affiliation: School of Mechanical, Electrical &Information Engineering, Shandong University (Weihai), Wenhua Xilu 180, 264209 Weihai, P.R. China.
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.affiliation: Centre for Advanced Structural Materials, Department of Mechanical and Biomedical Engineering, City University of Hong Kong, 999077 Hong Kong SAR, P.R. China.
authors.forename: Bao-An
authors.initials: BA
authors.lastname: Sun
authors.affiliation: Laboratory for Microstructures, Shanghai University, 200444 Shanghai, P.R. China.
authors.forename: Gang
authors.initials: G
authors.lastname: Wang
authors.affiliation: IFW Dresden, Institute for Complex Materials, Helmholtzstraße 20, 01069 Dresden, Germany.
authors.forename: Ivan
authors.initials: I
authors.lastname: Kaban
authors.affiliation: Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, A-8700 Leoben, Austria.|Department Materials Physics, Montanuniversität Leoben, Jahnstraße 12, A-8700 Leoben, Austria.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Eckert