title: Structural evolution and strength change of a metallic glass at different temperatures.
abstract: The structural evolution of a Zr64.13Cu15.75Ni10.12Al10 metallic glass is investigated in-situ by high-energy synchrotron X-ray radiation upon heating up to crystallization. The structural rearrangements on the atomic scale during the heating process are analysed as a function of temperature, focusing on shift of the peaks of the structure factor in reciprocal space and the pair distribution function and radial distribution function in real space which are correlated with atomic rearrangements and progressing nanocrystallization. Thermal expansion and contraction of the coordination shells is measured and correlated with the bulk coefficient of thermal expansion. The characteristics of the microstructure and the yield strength of the metallic glass at high temperature are discussed aiming to elucidate the correlation between the atomic arrangement and the mechanical properties.
authors.affiliation: Laboratory for Microstructures, Institute of Materials, Shanghai University, Shanghai 200444, China.
authors.forename: X
authors.initials: X
authors.lastname: Tong
authors.affiliation: Laboratory for Microstructures, Institute of Materials, Shanghai University, Shanghai 200444, China.
authors.forename: G
authors.initials: G
authors.lastname: Wang
authors.affiliation: Research School of Engineering, CECS, Australian National University, Canberra ACT0200, Australia.
authors.forename: Z H
authors.initials: ZH
authors.lastname: Stachurski
authors.affiliation: HASYLAB at DESY, Notkestr. 85, D-22603 Hamburg, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Bednarčík
authors.affiliation: IFW Dresden, Institute for Complex Materials, Helmholtzstr. 20, D-01069 Dresden, Germany.
authors.forename: N
authors.initials: N
authors.lastname: Mattern
authors.affiliation: Laboratory for Microstructures, Institute of Materials, Shanghai University, Shanghai 200444, China.
authors.forename: Q J
authors.initials: QJ
authors.lastname: Zhai
authors.affiliation: Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraβe 12, A-8700 Leoben, Austria.|Department Materials Physics, Montanuniversität Leoben, Jahnstraβe 12, A-8700 Leoben, Austria.
authors.forename: J
authors.initials: J
authors.lastname: Eckert