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Solidification of Aluminium Alloys Under Ultrasonication: An Overview

An overview of our investigations on solidification microstructure formation under ultrasonication in various Al alloys and comparison against unrefined or chemically modified microstructures under identical cooling conditions is presented. Primary α-Al grains show significant refinement under ultrasonication, even better than established chemical inoculation, in the small ingots...

Redefining the β-Phase Stability in Ti-Nb-Zr Alloys for Alloy Design and Microstructural Prediction

our attention to E. K. Molchanova’s original contribution to the concept of the Mo equivalence (see Ref. 3). References 1. I.J. Polmear, D.H. StJohn, J.F. Nie, and M. Qian, Light Alloys: Metallurgy

Role of ultrasonic treatment, inoculation and solute in the grain refinement of commercial purity aluminium

The present study investigates the influence of ultrasonic treatment on the grain refinement of commercial purity aluminium with a range of Al3Ti1B master alloy additions. When the aluminium contains the smallest amount of added master alloy, ultrasonics caused significant additional grain refinement compared to that provided by the master alloy alone. However, the influence of...

Effect of Powder Reuse Times on Additive Manufacturing of Ti-6Al-4V by Selective Electron Beam Melting

. 2013AA031103). M. Qian and H.P. Tang further acknowledge the support from the Australian Research Council (ARC) through the Linkage Projects program under ARC LP140100607. Useful comments and suggestions from ... , C.C. Liu , L.P. Zhu , and X.H. Qu , Powder Tech. 254 , 235 ( 2014 ). 5. Y.Y. Sun , S. Gulizia , C.H. Oh , C. Doblin , Y.F. Yang , and M. Qian , JOM 67 ( 2015 ), doi:10.1007/s11837-015-1301-3. 6. S.M

Applied Pressure on Altering the Nano-Crystallization Behavior of Al86Ni6Y4.5Co2La1.5 Metallic Glass Powder during Spark Plasma Sintering and Its Effect on Powder Consolidation

. Schaffer, and M. Qian, “The influence of topological structure on bulk glass formation in Al-based metallic glasses,” Scripta Materialia, vol. 65, no. 9, pp. 755–758, 2011. View at Google ScholarM. Yan, J. Q ... . Wang, C. Kong, G. B. Schaffer, and M. Qian, “Micrometer-sized quasicrystals in the Al85Ni5Y6Co2Fe2 metallic glass: a TEM study and a brief discussion on the formability of quasicrystals in bulk and

On Local Linear Approximations to Diffusion Processes

Diffusion models have been used extensively in many applications. These models, such as those used in the financial engineering, usually contain unknown parameters which we wish to determine. One way is to use the maximum likelihood method with discrete samplings to devise statistics for unknown parameters. In general, the maximum likelihood functions for diffusion models are not...

An Information Roadmap Method for Robotic Sensor Path Planning

G. Zhang S. Ferrari M. Qian A new probabilistic roadmap method is presented for planning the path of a robotic sensor deployed in order to classify multiple fixed targets located in an obstacle

The diagnostic research of telecom power converter with electromagnetic interference (EMI) suppressing technology

The main source of Electromagnetic Interference (EMI) emissions in power converters used for Telecom application comes from the high switching frequency of DC voltages. Power converters are generally operating in a periodic steady state, interested converter waveforms are typically periodic functions of time. Indeed the EMI emissions are a critical factor, which, can harm the...

Fabp3 Inhibits Proliferation and Promotes Apoptosis of Embryonic Myocardial Cells

First Affiliated Hospital of Nanjing Medical University , Nanjing 210029, People's Republic of China 1 D. L. Hu Y. Q. Liu Q. J. Zhang F. K. Chen X. Q. Kong K. J. Cao L. M. Qian (&) Department of