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Anh Kiet Tieu

Bio: Anh Kiet Tieu is an academic researcher from University UCINF. The author has contributed to research in topics: Lubrication & Surface roughness. The author has an hindex of 35, co-authored 284 publications receiving 4255 citations. Previous affiliations of Anh Kiet Tieu include University of Wollongong & Cooperative Research Centre.


Papers
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Journal ArticleDOI
TL;DR: In this paper, an acoustic emission-based method for the condition monitoring of low speed reversible slew bearings is presented, and several acoustic emission (AE) hit parameters as the monitoring parameters for the detection of impending failure of slew bearings are reviewed first.

135 citations

Journal ArticleDOI
TL;DR: In this article, the effect of carbides on the creep properties of a cast Ni-base superalloy M963 tested at 800 and 900°C over a broad stress range has been investigated.
Abstract: Effect of carbides on the creep properties of a cast Ni-base superalloy M963 tested at 800 and 900 °C over a broad stress range has been investigated. Correlation between the carbides and creep properties of the alloy is enabled through scanning electron microscopy (SEM) and transmission electron microscopy (TEM). During high temperature creep tests, the primary MC carbide decomposes sluggishly and a large amount of secondary carbides precipitate. The cubic and acicular M 6 C carbide precipitates at the dendritic core region. Extremely fine chromium-rich M 23 C 6 carbide precipitates preferentially at grain boundaries. The M 6 C and M 23 C 6 carbides are found to be beneficial to the creep properties of the alloy. At lower temperature (800 °C), the interface of MC carbide with matrix is one of the principal sites for crack initiation. At higher temperature (900 °C), the oxidation and the precipitation of μ phase are the main factors for significant loss in creep strength of the alloy.

106 citations

Journal ArticleDOI
TL;DR: In this article, a systematic experimental study has been conducted to evaluate the sliding tribological properties of CoCrFeNiMo0.2 high entropy alloy at room temperature, and the results showed strong dependence of its friction and wear behaviours on sliding duration, normal load and velocity.

93 citations

Journal ArticleDOI
TL;DR: In this article, the authors used a full 3D rigid plastic finite element method (FEM) to simulate the thin strip rolling taking into account the modelling of friction variation in the roll bite.

81 citations

Journal ArticleDOI
Weihua Sun1, Anh Kiet Tieu1, Zhengyi Jiang1, Hongtao Zhu1, Cheng Lu1 
TL;DR: In this article, an experimental simulation of oxidation scales during hot strip rolling was carried out on a GLEEBLE-3500 thermo-mechanical simulator, where specimens were exposed to an oxidizing water vapour mixture for different exposure times from 0.6 to 160 s isothermally at 800, 900 and 1000 °C, respectively under atmospheric pressure, which are representative duration of time for oxidation on a hot finishing mill.

68 citations


Cited by
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01 May 1993
TL;DR: Comparing the results to the fastest reported vectorized Cray Y-MP and C90 algorithm shows that the current generation of parallel machines is competitive with conventional vector supercomputers even for small problems.
Abstract: Three parallel algorithms for classical molecular dynamics are presented. The first assigns each processor a fixed subset of atoms; the second assigns each a fixed subset of inter-atomic forces to compute; the third assigns each a fixed spatial region. The algorithms are suitable for molecular dynamics models which can be difficult to parallelize efficiently—those with short-range forces where the neighbors of each atom change rapidly. They can be implemented on any distributed-memory parallel machine which allows for message-passing of data between independently executing processors. The algorithms are tested on a standard Lennard-Jones benchmark problem for system sizes ranging from 500 to 100,000,000 atoms on several parallel supercomputers--the nCUBE 2, Intel iPSC/860 and Paragon, and Cray T3D. Comparing the results to the fastest reported vectorized Cray Y-MP and C90 algorithm shows that the current generation of parallel machines is competitive with conventional vector supercomputers even for small problems. For large problems, the spatial algorithm achieves parallel efficiencies of 90% and a 1840-node Intel Paragon performs up to 165 faster than a single Cray C9O processor. Trade-offs between the three algorithms and guidelines for adapting them to more complex molecular dynamics simulations are also discussed.

29,323 citations

01 Jun 2005

3,154 citations

Journal ArticleDOI
TL;DR: In this paper, a review of continuum-based variational formulations for describing the elastic-plastic deformation of anisotropic heterogeneous crystalline matter is presented and compared with experiments.

1,573 citations

Journal ArticleDOI
TL;DR: Computer and Robot Vision Vol.
Abstract: Computer and Robot Vision Vol. 1, by R.M. Haralick and Linda G. Shapiro, Addison-Wesley, 1992, ISBN 0-201-10887-1.

1,426 citations

01 Jan 1987

991 citations