| 铌对弹簧钢60Si2MnA动态再结晶的影响 |
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| 引用本文： | 孙小军,刘雅政,肖金福,张朝磊,姜超. 铌对弹簧钢60Si2MnA动态再结晶的影响[J]. 武汉冶金科技大学学报, 2009, 0(6): 596-599 |
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| 作者姓名： | 孙小军 刘雅政 肖金福 张朝磊 姜超 |
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| 作者单位： | 北京科技大学材料科学与工程学院,北京 100083 |
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| 摘 要： | 在Gleeble-1500热模拟实验机上研究含铌弹簧钢的动态再结晶行为,用透射电镜对铌的析出物进行观察,并分析铌对弹簧钢动态再结晶的影响。结果表明,含铌弹簧钢易发生动态再结晶,在温度为850-1050℃、变形速率为0.1-20 s^-1条件下均发生动态再结晶;在变形速率为5 s^-1的条件下,60Si2MnA动态再结晶的发生推迟50℃左右;在低温情况下,铌推迟60Si2MnA动态再结晶的主要原因是Nb（C,N）的析出及其钉扎作用。
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| 关 键 词： | 铌 弹簧钢 动态再结晶 影响 |
Effect of niobium on dynamic recrystallization of spring steel 60Si2MnA |
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| Sun Xiaojun,Liu Yazheng,Xiao Jinfu,Zhang Chaolei,Jiang Chao. Effect of niobium on dynamic recrystallization of spring steel 60Si2MnA[J]. , 2009, 0(6): 596-599 |
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| Authors: | Sun Xiaojun Liu Yazheng Xiao Jinfu Zhang Chaolei Jiang Chao |
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| Affiliation: | (School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China) |
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| Abstract: | Dynamic recrystallization of Nb-containing spring steel under different deformation conditions was studied by using a Gleeble 1500 thermal mechanical simulator.The precipitates of Nb were observed by TEM,and the effect of Nb on dynamic recrystallization was analyzed.The results show that dynamic recrystallization of Nb-containing spring steel occurs at 850～1 050 ℃ and deformation rate of 0.1～20 s^-1.Nb delays the dynamic recrystallization at about 50 ℃ when the deformation rate is 5 s^-1.The delayed dynamic recrystallization by Nb at lower temperature is mainly due to the pinning effect of Nb（C,N） precipitation. |
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| Keywords: | Nb spring steel dynamic recrystallization effect |
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