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变质处理对高铬耐磨钢组织与性能的影响
Influence of Modification Treatment on Properties and Microstructure of High Chromium Wear-resistant Steel
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- DOI:
- 作者:
- 王本亮 张黎燕 孙小香
WANG Benliang;ZHANG Liyan;SUN Xiaoxiang
- 作者单位:
- 河南机电职业学院智能工程学院 中信重工机械股份有限公司铸锻研究所
School of Intelligent Engineering,Henan Mechanical and Electrical Vocational College,Zhengzhou 451191,China;Laboratory of Casting and Forging,CITIC Heavy Industry Co.,Ltd.,Luoyang 471003,China
- 关键词:
- 变质处理 冲击韧性 扫描电镜 透射电镜
modification treatment impact toughness scanning electron microscope transmission electron microscope
- 摘要:
- 以某耐磨钢为研究对象,通过扫描电镜和透射电镜考察了该材料在变质处理前后的微观结构。结果表明:变质处理后,马氏体基体板条窄小,碳化物Cr23C_6尺寸小,数量多。部分Cr23C_6弥散分布于晶粒内部,起弥散强化作用,不仅提高了硬度,而且提高了冲击韧度。A wear-resisting steel was taken as the research object, the microstructure of wear-resistant steel was investigated by SEM and TEM. The results show that the martensite matrix is narrow and the size of Cr23C6 carbide is small and the quantity is large. Part of Cr23C6 is dispersed in the grain, which plays the role of dispersion enhancement. It not only improves the hardness, but also improves the impact toughness.