| 微合金元素Nb,Mo在应变诱导析出过程中的相互作用 |
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| 引用本文： | 刘明哲,苑少强,梁国俐,刘义.微合金元素Nb,Mo在应变诱导析出过程中的相互作用[J].热加工工艺,2009,38(18). |
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| 作者姓名： | 刘明哲 苑少强 梁国俐 刘义 |
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| 作者单位： | 1. 河北钢铁集团有限公司,河北,石家庄,050000
2. 唐山学院科研处,河北,唐山,063000 |
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| 基金项目： | 河北省自然科学基金--钢铁联合研究基金资助项目 |
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| 摘 要： | 运用热模拟技术和透射电子显微镜,研究了C-Mo、C-Ti-Mo和C-Nb-Mo三种简单成分钢奥氏体变形后松弛过程中微合金元素Nb、Mo在析出物中的相瓦作用.结果表明:在850℃变形后松弛1000 s.三种钢均保持了奥氏体状态,但C-Ti-Mo和C-Nb-Mo钢有析出发生,能谱分析显示析出颗粒分别是Ti(C,N)和含Mo的Nb(C,N).微合金元素Mo与Nb有较强的相互作用,在Nb(C,N)析出后,Mo可能溶入Nb(C,N)的析出颗粒之中.
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| 关 键 词： | 热模拟 松弛 应变诱导析出 碳氮化物 |
Interaction Between Micro-alloyed Element of Nb and Mo During Strain-induced Precipitation |
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| LIU Mingzhe,YUAN Shaoqiang,LIANG Guoli,LIU Yi.Interaction Between Micro-alloyed Element of Nb and Mo During Strain-induced Precipitation[J].Hot Working Technology,2009,38(18). |
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| Authors: | LIU Mingzhe YUAN Shaoqiang LIANG Guoli LIU Yi |
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| Abstract: | Using the thermo-simulation test and transmission electron microscopy (TEM),the interaction between the micro-alloyed element Nb and Mo in the precipitates during relaxation after austenite deformation for C-Mo,C-Ti-Mo steel and C-Nb-Mo steel was investigated.The experiment results show that the austenite state is preserved in three kinds of steels relaxed for 1000 s after deforming at 850 ℃.But strain-induced precipitate occurs in C-Ti-Mo steel and C-Nb-Mo steel.The energy spectrum analysis shows that the precipitated particles are Ti(C,N) and Mo-containing Nb(C,N),there is strong interaction between Mo and Nb in the precipitates.The element Mo enters the matrix of Nb(C,N) particles probably after Nb(C,N) formation. |
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| Keywords: | thermo-simulation relaxation strain-induced precipitation carbo-nitrides |
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