| 冷速对钒微合金化钢形变诱导相变组织的影响 |
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| 引用本文： | 王凯,虞海燕,赫冀成,刘春明. 冷速对钒微合金化钢形变诱导相变组织的影响[J]. 东北大学学报(自然科学版), 2009, 30(12): 1739-1742. DOI: - |
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| 作者姓名： | 王凯 虞海燕 赫冀成 刘春明 |
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| 作者单位： | 1. 东北大学材料电磁过程研究教育部重点实验室,辽宁,沈阳,110004
2. 东北大学,材料与冶金学院,辽宁,沈阳110004 |
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| 基金项目： | 中国金属学会-国际钒技术委员会资助项目，中国博士后科学基金，东北大学博士后科研基金 |
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| 摘 要： | 通过热模拟实验考察了在连续冷却条件下,不同的冷却速度对钒微合金化钢的形变诱导铁素体相变(DIFT)组织演变的影响规律.结果表明,大变形后的冷却速度越大,实验用钢的铁素体晶粒越细小;在相同的冷却速度下,钢中的钒含量越多,铁素体晶粒越细小.在较低的冷却速度下,钢中的钒含量越多,钒的碳氮化物析出越多;当冷却速度较大时,钒微合金化实验用钢中没有钒的碳氮化物析出.
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| 关 键 词： | 钒微合金化 形变诱导铁素体相变 连续冷却 晶粒长大 碳氮化物 |
Influence of Cooling Rate on Microstructure Evolution Due to Deformation Induced Ferrite Transformation in Vanadium Microalloyed Steel |
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| WANG Kai,YU Hai-yan,HE Ji-cheng,LIU Chun-ming. Influence of Cooling Rate on Microstructure Evolution Due to Deformation Induced Ferrite Transformation in Vanadium Microalloyed Steel[J]. Journal of Northeastern University(Natural Science), 2009, 30(12): 1739-1742. DOI: - |
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| Authors: | WANG Kai YU Hai-yan HE Ji-cheng LIU Chun-ming |
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| Affiliation: | (1) Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110004, China; (2) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China |
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| Abstract: | The effect of cooling rate on DIFT(deformation induced ferrite transformation)microstructure evolution during continuously cooling was investigated for the vanadium microalloyed steel via thermo-simulator.The simulation results showed that the higher the cooling rate after large deformation.the finer the DIF(deformation induced ferrite)grains in specimens and,at the same cooling rate,the higher the vanadium content in the steel,the finer the DIF grains.However,at lower cooling rate,the higher the vanadium content,the more the carbonitride precipitates from vanadium,and no carbonitride precipitates are found in specimens at higher cooling rate. |
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| Keywords: | vanadium microalloying DIFT(deformation induced ferrite transformation) continuously cooling grain growth carbonitride |
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