| 1. |
- Lv, Mingsong, et al.
(author)
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WCET Analysis of the μC/OS-II Real-Time Kernel
- 2009
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In: Proc. 12th International Conference on Computational Science and Engineering. - Piscataway, NJ : IEEE. - 9781424453344 ; , s. 270-276
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Conference paper (peer-reviewed)
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| 2. |
- Xie, Jiaying, et al.
(author)
-
Atomistic simulation on the structural properties and phase stability for Cr23C6 and Mn23C6
- 2006
-
In: Journal of Alloys and Compounds. - : Elsevier BV. - 0925-8388 .- 1873-4669. ; 420:1-2, s. 269-272
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Journal article (peer-reviewed)abstract
- Based on the successful applications of lattice inversion method in many fields, the crystal structure and phase stability of Cr23C6 and Mn23C6 are investigated using the interatomic potentials obtained by lattice inversion method in this research. The calculated atomic coordinates and crystal parameters are in good agreement with the experimental results and the phase stability of Cr23C6 and Mn23C6 are tested by random atom shifts and global deformations. The calculated energy also indicates that the Cr23C6 is more stable than Mn23C6.
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| 3. |
- Xie, Jiaying, et al.
(author)
-
Atomistic study on the structure and thermodynamic properties of Cr7C3, Mn7C3, Fe7C3
- 2005
-
In: Acta Materialia. - : Elsevier BV. - 1359-6454 .- 1873-2453. ; 53:9, s. 2727-2732
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Journal article (peer-reviewed)abstract
- The crystal structures and stabilities of Cr7C3, Mn7C3, Fe7C3 have been investigated using the interatomic potentials obtained by the lattice inversion method. The calculated structures of Cr7C3, Mn7C3 and Fe7C3 are proposed to be hexagonal with P6(3)mc space group and the calculated lattice constants are in basic agreement with the experimental data. The calculated cohesive energies indicate that the increase in the atomic number of the metal is accompanied by the decrease in the stability of its carbides. The phonon density of states and vibrational entropy related to dynamic phenomena are also evaluated. This work provides a new method for studying the properties of carbides with complex structure.
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| 4. |
- Xie, Jiaying, et al.
(author)
-
Thermodynamic studies of the Fe-Cr-C-N system by EMF measurements
- 2007
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In: Metallurgical and materials transactions. B, process metallurgy and materials processing science. - : Springer Science and Business Media LLC. - 1073-5615 .- 1543-1916. ; 38:1, s. 93-100
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Journal article (peer-reviewed)abstract
- In this work, the Fe-Cr-C-N alloys were synthesized by nitriding the Fe, Cr, and C powder mixtures at 1573 K in the N-2 gas (101 325 Pa). The nitrogen content and phase relationships at 1173 K in the alloys were investigated by the use of an equilibration technique. The thermodynamic activities of chromium in the alloys were studied using the solid-state galvanic cell method with CaF2 as the solid electrolyte in the temperature range 973 to 1173 K in an atmosphere of N-2 gas (101 325 Pa). The activities of chromium in the Fe-Cr-C-N alloys were calculated and compared with those of the corresponding Fe-Cr-C ternary alloys with pure bcc-Cr as standard state. X-ray diffraction (XRD) and scanning electron microscopy (SEM) methods were used to identify the equilibrium phases and microstructures of the investigated alloys. The experimental results show that a Cr2N-based nitride was formed during the nitriding procedure in the alloys. The nitrogen content in the alloys decreases with the decreasing chromium content, as well as the increasing temperature. The addition of nitrogen to the ternary Fe-Cr-C alloy was found to have a strong negative impact on the Cr activity in the Fe-Cr-C-N system.
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