Chemical Compositions, Microstructure and Mechanical Properties of Roll Core used Ductile Iron in Centrifugal Casting Composite Rolls

材料科学技术（英文）, 2012, 28(9): 853-858.

Chemical Compositions, Microstructure and Mechanical Properties of Roll Core used Ductile Iron in Centrifugal Casting Composite Rolls

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1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang110016, China

2.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang110016, China

3.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang110016, China

4.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang110016, China

5.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang110016, China

6.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang110016, China

关键词：球墨铸铁 , 力学性能 , 显微组织 , 化学成分 , 复合轧辊 , 离心铸造 , 卷芯 , 厚大断面球铁

Chemical Compositions, Microstructure and Mechanical Properties of Roll Core used Ductile Iron in Centrifugal Casting Composite Rolls

Keywords： Centrifugal casting , Roll , Heavy section ductile iron , Micro-alloying with Sb ,

The industrial manufacture processes of three kinds of roll core used ductile irons have been investigated via systematical experiments. EfFects of the ratio of C/Si, pig iron, nodularizer and alloying method on the microstructure and mechanical properties of the heavy section ductile iron have been analyzed. It has been found that when treated with RE-Mg plus Sb, high quality nodular castings can be produced even if much anti spheroidizing alloy elements are included in the pig iron. The alloy element Sb played an important role in the control of graphite morphology.

参考文献

[1]	G.S. Cho,K.H. Choe,K.W. Lee,A.Ikenaga.Effects of Alloying Elements on the Microstructures and Mechanical Properties of Heavy Section Ductile Cast Iron[J].材料科学技术学报（英文版）,2007(01):97-101.
[2]	P. LARRANAGA;I. ASENJO;J. SERTUCHA .Effect of Antimony and Cerium on the Formation of Chunky Graphite during Solidification of Heavy-Section Castings of Near-Eutectic Spheroidal Graphite Irons[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2009(3):654-661.
[3]	J.Lacaze;A.Boudot .The Role of Manganese and Copper in the Eutectoid Transformation of Spheroidal Graphite Cast Iron[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,1997(10):2015-2027.

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