PREDICTION OF MICROSTRUCTURE EVOLUTION DURING HOT EXPANDING-EXTRUSION FORMING OF RESTRAINING RINGS |
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| Authors: | Guo Huiguang Wu Qingpei |
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| Affiliation: | Liu Jiansheng Chen Huiqin Guo Huiguang Taiyuan Heavy Machinery Institute Wu Qingpei Northeastern University |
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| Abstract: | ![]()
A mathematic model for dynamic and static recrystallization of Mn18Cr18N steel is presented.Hot expanding extrusion forming and air cooling process of 600 MW retaining ring has been simulated by the combination of thermos coupled rigid viscoplasitic FEM with this model,and grain size distribution on cross section of ring is shown.The essential results can be provided for use of the new technique. |
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| Keywords: | Retaining ring Hot forming Microstructure evolution Finite element method |
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