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| 1 | THERMAL STABILITY OF NON-EQUILIBRIUS MICROSTRUCTURE IN MICROALLOYED STEEL DURING REHEATING显示文摘Cooled in water after isothermal relaxation of deformed austenite for different times, an Nb-bearing microalloyed steel always exhibits synthetic microstructures, in which bainitic ferrite dominates. Dislocation configurations and distributions of strain induced precipitates inside bainitic ferrite of samples relaxed for different times were distinct. When compared with the austenite model steel, which maintained fcc structure even at room temperature, the strain induced precipitates were not found in the sample without relaxation whereas these were distributed outside dislocations in sample relaxed for 1000s. Most of the strain induced precipitates distribute along dislocations and pin dislocations in sample relaxed for appropriate time. After bainitic transformation, the dislocations formed in deformed austenite remain to be pinned by the precipitates. When these samples were reheated to and held at 650 or 700℃, the non-equilibrious microstructures tended to evolve into equilibrious ones. The sample relaxed for 60s displayed the highest thermo-stability, whereas microstructure evolution was the quickest in the sample relaxed for 1000s even though it was the softest prior to reheating. Dislocations inside laths got rid of pinning of precipitates, and their polygonization became the precursor to the evolution of microstructures during reheated and held, followed by gradual disappearance of lath boundaries caused by dislocation climbing. Finally, recrystallization occurred and polygonal ferrite appeared. By hardness measurement, it was found that softening is not a single process occurring during reheated, in which hardness fluctuates with time. There were two peaks in the hardness-time curve of each sample having undergone relaxation, while single peak occured in the curve of the sample not being relaxed. These results indicated that the thermo-stability of microstructures was determined by their history of formation to a considerable degree. | H.B. Wu H.T. Jiang S.W. Yang D. Tang X.L. He | 2007 | Acta Metallurgica Sinica(English Letters)2007，20，5： | 2 |
| 2 | Numerical and experimental investigation into cold incremental rolling of doubly curved plates for process design of a new LARS (line array roll set) rolling process显示文摘 | D.S. Shim D.Y. Yang K.H. Kim M.S. Han S.W. Chung | 2009 | CIRP Annals - Manufacturing Technology2009，，1： | 1 |
| 3 | Investigation into forming sequences for the incremental forming of doubly curved plates using the line array roll set (LARS) process显示文摘 | D.S. Shim D.Y. Yang K.H. Kim S.W. Chung M.S. Han | 2009 | International Journal of Machine Tools and Manufacture2009，，2： | 1 |
| 4 | Hypoxia/ischemia expands the regenerative capacity of progenitors in the perinatal subventricular zone显示文摘 | Z. Yang S.W. Levison | 2006 | Neuroscience2006，，2： | 1 |
| 5 | Full 3D finite element modelling of spiral strand cables显示文摘 | R. Judge Z. Yang S.W. Jones G. Beattie | 2011 | Construction and Building Materials2011，，： | 1 |
| 6 | Biological fingerprinting analysis of the traditional Chinese prescription Longdan Xiegan Decoction by on/off-line comprehensive two-dimensional biochromatography显示文摘 | Yun Wang Liang Kong Lianghai Hu Xiaoyuan Lei Li Yang Guixin Chou Hanfa Zou Changhong Wang S.W. Annie Bligh Zhengtao Wang | 2007 | Journal of Chromatography B2007，，2： | 1 |
| 7 | The metastable austenite transformation in Mo–Nb–Cu–B low carbon steel显示文摘 | Y.T. Zhao C.J. Shang S.W. Yang X.M. Wang X.L. He | 2006 | Materials Science & Engineering A2006，，： | 1 |
| 8 | The relationship between charge passed and the chloride-ion concentration in concrete using steady-state chloride migration test显示文摘 | C.C. Yang S.W. Cho R. Huang | 2002 | Cement and Concrete Research2002，，2： | 1 |
| 9 | A Quantitative Analysis of Mn Segregation at Partitioned Ferrite/Austenite Interface in a Fe-C-Mn-Si Alloy显示文摘Mn segregation at austenite/ferrite interface is studied in a Fe-C-Mn-Si alloy held at 656℃. Mn is partitioned during the growth of ferrite and as a result, a Mn pile-up exists in front of interface on the matrix side. An approach to evaluate Mn segregation quantitatively is developed by combining STEM raster window scanning and simulation of the interaction of the electron beam with the sample to subtract the contribution of Mn pile-up and obtain pure Mn segregation value. The evaluated maximum Mn interfacial segregation is in the order of a half-monolayer. | H. Guo S.W. Yang C.J.Shang X.M. Wang X.L. He | 2009 | Journal of Materials Science & Technology2009，25，3： | 0 |
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