Chemical compositions, microstructure and mechanical properties of roll core used ductile iron in centrifugal casting compound rolls

J. Mater. Sci. Technol. ›› 2012, Vol. 28 ›› Issue (9): 853-858.

Chemical compositions, microstructure and mechanical properties of roll core used ductile iron in centrifugal casting compound rolls

康秀红¹,白云龙²

1. 中国科学院金属研究所
2. 中国科学院金属研究所材料加工模拟研究部

收稿日期:2011-03-14 修回日期:2011-12-21 出版日期:2012-09-28 发布日期:2012-09-28
通讯作者: 康秀红

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

Yunlong Bai,Yikun Luan, Nannan Song, Xiuhong Kang, Dianzhong Li, Yiyi Li

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Received:2011-03-14 Revised:2011-12-21 Online:2012-09-28 Published:2012-09-28
Contact: Xiuhong Kang

摘要/Abstract

Abstract:

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.

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

康秀红白云龙. Chemical compositions, microstructure and mechanical properties of roll core used ductile iron in centrifugal casting compound rolls[J]. J. Mater. Sci. Technol., 2012, 28(9): 853-858.

Yunlong Bai,Yikun Luan, Nannan Song, Xiuhong Kang, Dianzhong Li, Yiyi Li. Chemical Compositions, Microstructure and Mechanical Properties of Roll Core used Ductile Iron in Centrifugal Casting Composite Rolls[J]. J. Mater. Sci. Technol., 2012, 28(9): 853-858.

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