Effect of RE-Mg Complex Modifier on Structure and Performance of High Speed Steel Roll

机译：稀土镁复合改性剂对高速钢轧辊组织和性能的影响

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The effects of rare earth (RE) and magnesium complex modifier on the structures and performance of high speed steel (HSS) roll were investigated and the mechanism of modification was analyzed by means of optical microscope(OM), scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS), X-ray diffraction (XRD)analysis, tensile testing machine and impact tester. The results showed that RE-Mg complex modifier could refine the grain, change carbide morphology and distribution, and increase mechanical properties. After heat treatment at 1000 ℃,many networked carbides in HSS roll were broken and a number of granular carbides appeared. Most of eutectic carbides were spheroidized and distributed uniformly. The networked carbides disappeared completely after heated to 1050 ℃. The reason that RE-Mg improves the microstructure of HSS roll was analyzed.

机译：研究了稀土（RE）和镁复合改性剂对高速钢（HSS）轧辊组织和性能的影响，并通过光学显微镜（OM），扫描电子显微镜（SEM）分析了改性机理，能量色散X射线光谱仪（EDS），X射线衍射（XRD）分析，拉伸测试机和冲击测试仪。结果表明，稀土-镁复合改性剂可以细化晶粒，改变碳化物的形态和分布，提高力学性能。 1000℃热处理后，HSS轧辊中许多网状碳化物破裂，出现大量粒状碳化物。大多数共晶碳化物均被球化并均匀分布。加热到1050℃后，网状碳化物完全消失。分析了RE-Mg改善HSS轧辊组织的原因。

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《International Conference on Rare Earth Ceramics and Glasses; 2006》|2006年|P.259-263|共5页
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作者
Duan Jiangtao; Jiang Zhiqiang; Fu Hanguang;
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作者单位

School of Electro-Mechanical Engineering, Xidian University, Xi'an 710071, China;

Department of Industrial Engineering, Zhengzhou Institute of Aeronautics, Zhengzhou 450015, China;

Department of Industrial Engineering, Zhengzhou Institute of Aeronautics, Z;

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原文格式 PDF
正文语种 eng
中图分类晶体生长;
关键词
high speed steel roll; RE complex modifier; eutectic carbide; toughness; rare earths;

机译：高速钢辊；稀土复合改性剂；共晶碳化物；韧性；稀土;

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