| 硼含量对Mn13Cr2高锰钢铸态组织和性能的影响 |
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| 引用本文： | 郭建新,刘俊友,刘杰.硼含量对Mn13Cr2高锰钢铸态组织和性能的影响[J].铸造,2011,60(4). |
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| 作者姓名： | 郭建新 刘俊友 刘杰 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083
2. 北京北科德瑞冶金工程技术有限公司,北京,100083 |
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| 摘 要： | 借助光学显微镜、扫描电镜、X射线衍射仪、电子探针等仪器设备综合研究了硼含量(0.50～2.0%)对Mn13Cr2高锰钢铸态组织和性能的影响.试验结果表明:硼元素主要分布在硼碳化物中,并且随着硼含量的增加,合金的基体组织由奥氏体为主变为以铁素体为主,第二相由M3(C,B)为主变为M23(C,B)6和M3(C,B)为主,第二相呈网状分布特征.同时,第二相的体积分数、合金的硬度随硼含量的增加而增加,合金的冲击韧性随硼含量的增加而降低.
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| 关 键 词： | Mn13Cr2高锰钢 硼碳化物 铸态组织 硬度 冲击韧性 |
Effect of Boron Content on Microstructure and Properties of As-Cast Mn13Cr2 High Manganese Steel |
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| GUO Jian-xin,LIU Jun-you,LIU Jie.Effect of Boron Content on Microstructure and Properties of As-Cast Mn13Cr2 High Manganese Steel[J].Foundry,2011,60(4). |
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| Authors: | GUO Jian-xin LIU Jun-you LIU Jie |
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| Affiliation: | GUO Jian-xin1,LIU Jun-you1,LIU Jie2(1.School of Materials Science and Engineering,Beijing University of Science and Technology Beijing,Beijing 100083,China,2.Beijing BKDR Metallurgy Engineering & Technology Co.,Ltd.,China) |
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| Abstract: | By means of OM,SEM,XRD and EPMA,the effect of boron content(0.5%-2.0%)on microstructure and properties of as-cast Mn13Cr2 high manganese steel was studied.Experimental results show that with the increase of boron content the austenite matrix is gradually replaced by ferrite,and the second phases are transformed from M3(C,B) to M23(C,B)6 and M3(C,B).The second phases show a net-like structure and boron is mainly distributed in boro-carbides(M3(C,B),M23(C,B)6).Meanwhile,the hardness and volume fraction of the... |
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| Keywords: | Mn13Cr2 high manganese steel boro-carbide as-cast structure hardness impact toughness |
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