V含量对低合金耐磨铸铁组织及性能的影响  

Effect of Vanadium Content on Microstructures and Properties of Low Alloy Wear Resistant Cast Iron

作　　者：车广东[1] 刘向东[1] 代钦[1] 何照日格图 

机构地区：[1]内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特010051

出　　处：《铸造技术》2014年第1期11-12,共2页Foundry Technology

基　　金：内蒙古工业大学校基金资助项目(X201317)

摘　　要：采用硬度测试、冲击试验和观察金相组织手段,研究了合金元素钒对低铬铸铁组织和性能的影响。结果表明,随着钒含量的增加,试样的硬度增加。当钒含量为1.00%时,试样硬度达到56.7 HRC。试样冲击韧度并不是随着钒含量的增加而一直增大,当钒含量为0.75%时,冲击韧度达到最高为5.75 J/cm2。通过显微组织观察发现,晶粒随着钒含量的增加而细化。The effect of vanadium content on the microstructures and properties of low alloy wear resistant cast iron was researched by means of hardness testing, shock testing and metallographic microscope. The results show that the hardness of the sample increases with the increase of vanadium content. When the vanadium content is 1.00%, the hardness reaches 56.7 HRC. But the toughness doesn＇t increase always with the increase of vanadium. When the vanadium content is 0.75%, the toughness reaches 5.75 J/cm^2. Moreover, the grain size is refined with the increase of vanadium.

关 键 词：低铬合金 耐磨铸铁 钒 组织性能 

分 类 号：TG143[一般工业技术—材料科学与工程]