| V-Ti微合金钢热变形过程中复合微合金析出相的形成机制 |
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| 引用本文： | 黄杰,徐洲.V-Ti微合金钢热变形过程中复合微合金析出相的形成机制[J].上海金属,2005,27(6):12-15. |
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| 作者姓名： | 黄杰 徐洲 |
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| 作者单位： | 上海交通大学高温材料与高温测试教育部重点实验室,上海,200030;上海交通大学高温材料与高温测试教育部重点实验室,上海,200030 |
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| 摘 要： | 通过对V-Ti微合金钢平衡析出相的微合金含量的热力学预测以及对热变形过程中析出相的电镜观察和能谱分析,研究了热变形过程中微合金析出相的组成及其形成机制.结果表明,奥氏体热变形过程中的微合金析出相自从基体中沉淀出来,就是复合析出相（Ti,V）（C,N）,并且随形变温度的降低,复合析出相（Ti,V）（C,N）中Ti含量减少而V含量增多,析出相的成分存在一定差异.
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| 关 键 词： | V-Ti微合金钢 热变形 复合微合金析出相 形成机制 |
| 修稿时间： | 2005-05-20 |
THE FORMATION MECHANISM OF COMPOSITE PRECIPITATES PRODUCED IN HOT DEFORMATION OF V-Ti MICROALLOYED STEEL |
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| Huang Jie,Xu Zhou.THE FORMATION MECHANISM OF COMPOSITE PRECIPITATES PRODUCED IN HOT DEFORMATION OF V-Ti MICROALLOYED STEEL[J].Shanghai Metals,2005,27(6):12-15. |
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| Authors: | Huang Jie Xu Zhou |
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| Affiliation: | Key Laboratory for High Temperature Materials and Tests of Ministry of Education, Shanghai Jiaotong University |
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| Abstract: | The component analysis and the formation mechanism of the precipitates produced in hot deformation for V-Ti microalloyed steel were investigated by the thermodynamic prediction of weight fractions of micro-alloys in the precipitates,and the TEM observation and energy spectrum analysis of the precipitates during hot deformation.The result showed that the precipitates produced in hot deformation were the composites(Ti(,)V)(C(,)N) once they were precipitated from the deformed austenite.Additionally,there were some differences in the components of the composites,namely the weight fraction of Ti decreased and that of V increased in the composite precipitate with decreasing the deformation temperature. |
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| Keywords: | V-Ti Microalloyed Steel Hot Deformation Composite Precipifate Formation Mechanism |
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