| 40CrNi2Mo钢绝热剪切带的微观特征 |
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| 引用本文： | 肖红亮,时捷,郭忠诚,刘燕林,李晓源.40CrNi2Mo钢绝热剪切带的微观特征[J].兵器材料科学与工程,2008,31(6). |
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| 作者姓名： | 肖红亮 时捷 郭忠诚 刘燕林 李晓源 |
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| 作者单位： | 昆明理工大学材料与冶金工程学院,云南,昆明,650093;钢铁研究总院,北京,100081;钢铁研究总院,北京,100081;昆明理工大学材料与冶金工程学院,云南,昆明,650093;中国兵器科学研究院,宁波分院,浙江,宁波,315103 |
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| 摘 要： | 通过金相显微镜、扫描电子显微镜和透射电子显微镜的观察,对不同回火温度下40CrNi2Mo钢在弹丸侵彻下产生的绝热剪切带的微观特征进行研究。结果表明:此试验条件下的绝热剪切带宽为10～40μm,可分为过渡区和中心区;过渡区为严重形变后拉长的马氏体板条,而中心区发生了相变,形成了细小的等轴晶结构。
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| 关 键 词： | 40CrNi2Mo钢 绝热剪切带 等轴晶 相变 |
Microstructural characteristic of the adiabatic shear band in 40CrNi2Mo steel |
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| XIAO Hong-liang,SHI Jie,GUO Zhong-cheng,LIU Yan-lin,LI Xiao-Yuan.Microstructural characteristic of the adiabatic shear band in 40CrNi2Mo steel[J].Ordnance Material Science and Engineering,2008,31(6). |
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| Authors: | XIAO Hong-liang SHI Jie GUO Zhong-cheng LIU Yan-lin LI Xiao-Yuan |
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| Abstract: | The microstructural characteristic of adiabatic shear band during projectile perforation in 40CrNi2Mo steel tempered at different temperatures has been studied by optical metallographic microscope, scanning electron microscope and transmission electron microscope. The results show that the width of the adiabatic shear band is about 10-40 μm, and it consists of two areas: the transition area and the center area. The transition area is composed of heavily distorted martensite laths, while in the center area equiaxed grains are formed after phase transformation. |
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| Keywords: | 40CrNi2Mo steel adiabatic shear band equiaxed grain phase transformation |
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