Outputs (93)

The effects of annealing on the microstructure and the dynamic mechanical strength of a ZrCuNiAl bulk metallic glass (2013)
Journal Article
Huang, Y., Zheng, W., Fan, H., Wang, D., Shen, J., & Mi, J. (2013). The effects of annealing on the microstructure and the dynamic mechanical strength of a ZrCuNiAl bulk metallic glass. Intermetallics, 42, 192-197. https://doi.org/10.1016/j.intermet.2013.07.001

Isothermal annealing has been applied to a bulk metallic glass alloy, Zr50.7Cu28Ni9Al12.3. Nanocrystalline precipitates, mainly consisting of Ni3Zr and Ni42Zr 58 phases, appear from the amorphous matrix when annealed at 743 K for different times, and... Read More about The effects of annealing on the microstructure and the dynamic mechanical strength of a ZrCuNiAl bulk metallic glass.

Phase field simulation of binary alloy dendrite growth under thermal- and forced-flow fields: An implementation of the parallel-multigrid approach (2013)
Journal Article
Guo, Z., Mi, J., Xiong, S., & Grant, P. S. (2013). Phase field simulation of binary alloy dendrite growth under thermal- and forced-flow fields: An implementation of the parallel-multigrid approach. Metallurgical and Materials Transactions B, 44(4), 924-937. https://doi.org/10.1007/s11663-013-9861-5

Dendrite growth and morphology evolution during solidification have been studied using a phase field model incorporating melt convection effects, which was solved using a robust and efficient parallel, multigrid computing approach. Single dendrite gr... Read More about Phase field simulation of binary alloy dendrite growth under thermal- and forced-flow fields: An implementation of the parallel-multigrid approach.

In situ study of the evolution of atomic strain of bulk metallic glass and its effects on shear band formation (2013)
Journal Article
Huang, Y. J., Khong, J. C., Connolley, T., & Mi, J. (2013). In situ study of the evolution of atomic strain of bulk metallic glass and its effects on shear band formation. Scripta materialia, 69(3), 207-210. https://doi.org/10.1016/j.scriptamat.2013.03.016

The tensile behavior of TiZrNiCuBe metallic glass was studied using synchrotron X-ray diffraction and scanning electron microscopy. Shear band formation was carefully controlled by the introduction of a stress gradient due to a semi-circular notch. M... Read More about In situ study of the evolution of atomic strain of bulk metallic glass and its effects on shear band formation.

High speed imaging study of the dynamics of ultrasonic bubbles at a liquid-solid interface (2013)
Presentation / Conference Contribution
Tan, D., & Mi, J. High speed imaging study of the dynamics of ultrasonic bubbles at a liquid-solid interface

High speed imaging, including the ultrafast synchrotron X-ray imaging facility at the beamline 32-ID-B of the Advanced Photon Source (APS), was used to study in-situ (1) the dynamics of ultrasonic bubbles inside a water suspension with an acoustic fi... Read More about High speed imaging study of the dynamics of ultrasonic bubbles at a liquid-solid interface.

Ultrafast X-ray imaging and modelling of ultrasonic cavitations in liquid metal (2013)
Presentation / Conference Contribution
Lee, T. L., Khong, J. C., Fezzaa, K., & Mi, J. Ultrafast X-ray imaging and modelling of ultrasonic cavitations in liquid metal

The dynamics of ultrasonic bubbles in liquid metal are captured in-situ for the first time using the ultrafast X-ray phase contrast imaging facility housed at the Advanced Photon Source, Argonne National Laboratory, in the USA. The experimental obser... Read More about Ultrafast X-ray imaging and modelling of ultrasonic cavitations in liquid metal.

Shear punching of a Ti-based bulk metallic glass (2012)
Journal Article
Huang, Y., Wang, D., Fan, H., Sun, J., Shen, J., & Mi, J. (2013). Shear punching of a Ti-based bulk metallic glass. Materials Science and Engineering: A, 561, 220-225. https://doi.org/10.1016/j.msea.2012.11.022

In the paper, the deformation of Ti40Zr25Ni3Cu12Be20 bulk metallic glass plate subjected to shear punching has been studied. The fractured surface of the punch-out disks consists of three characteristic zones, namely the deformation band, the fractur... Read More about Shear punching of a Ti-based bulk metallic glass.

A high-speed imaging and modeling study of dendrite fragmentation caused by ultrasonic cavitation (2012)
Journal Article
Shu, D., Sun, B., Mi, J., & Grant, P. S. (2012). A high-speed imaging and modeling study of dendrite fragmentation caused by ultrasonic cavitation. Metallurgical and materials transactions. A, Physical metallurgy and materials science, 43(10), 3755-3766. https://doi.org/10.1007/s11661-012-1188-3

The dynamic behavior of ultrasound-induced cavitation bubbles and their effect on the fragmentation of dendritic grains of a solidifying succinonitrile 1 wt pct camphor organic transparent alloy have been studied experimentally using high-speed digit... Read More about A high-speed imaging and modeling study of dendrite fragmentation caused by ultrasonic cavitation.

Modelling the electromagnetic separation of non-metallic particles from liquid metal flowing through a two-stage multichannel (2011)
Journal Article
Shu, D., Mi, J., Wang, J., & Sun, B. (2011). Modelling the electromagnetic separation of non-metallic particles from liquid metal flowing through a two-stage multichannel. Isij International, 51(1), 21-26. https://doi.org/10.2355/isijinternational.51.21

A two-stage multichannel was designed to increase the efficiency of separating non-metallic particles from liquid metal flowing through an alternating magnetic field. Numerical method was developed to calculate the particle concentration and separati... Read More about Modelling the electromagnetic separation of non-metallic particles from liquid metal flowing through a two-stage multichannel.

An implicit parallel multigrid computing scheme to solve coupled thermal-solute phase-field equations for dendrite evolution (2011)
Journal Article
Guo, Z., Mi, J., & Grant, P. S. (2012). An implicit parallel multigrid computing scheme to solve coupled thermal-solute phase-field equations for dendrite evolution. Journal of Computational Physics, 231(4), 1781-1796. https://doi.org/10.1016/j.jcp.2011.11.006

An implicit, second-order space and time discretization scheme together with a parallel multigrid method involving a strip grid domain partitioning has been developed to solve fully coupled, nonlinear phase field equations involving solute and heat t... Read More about An implicit parallel multigrid computing scheme to solve coupled thermal-solute phase-field equations for dendrite evolution.

Gleeble experiments concerning dendrite re-melting and its role in microstructural evolution in spray formed high-alloy metals (2011)
Journal Article
Zhang, Y., Liu, N., Li, Z., Zhang, G., Yuan, H., Xu, W., Gao, Z., & Mi, J. (2011). Gleeble experiments concerning dendrite re-melting and its role in microstructural evolution in spray formed high-alloy metals. Rare Metals, 30(SUPPL.1), 401-404. https://doi.org/10.1007/s12598-011-0312-7

An experimental approach was designed to understand dendrite fragmentation of atomized droplets deposition in spray materials, and to study the relationship between dendrite fragmentation behavior and subsequent microstructural evolution. A Gleeble 3... Read More about Gleeble experiments concerning dendrite re-melting and its role in microstructural evolution in spray formed high-alloy metals.