Effect of cerium on the as-cast microstructure of a hypereutectic high chromium cast iron

被引：76

作者：

Qu, Yinhu ^{[1
,2
]}

Xing, Jiandong ^{[1
]}

Zhi, Xiaohui ^{[1
]}

Peng, Jiyun ^{[1
]}

Fu, Hanguang ^{[1
]}

机构：

[1] Xian Jiaotong Univ, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi Prov, Peoples R China

[2] Xian Polytech Univ, Sch Electromech Engn, Xian 710048, Shaanxi Prov, Peoples R China

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 17-18期

基金：

中国国家自然科学基金;

关键词：

high chromium cast irons; cerium; carbide; refinement; microstructure; metals and alloys;

D O I：

10.1016/j.matlet.2008.01.129

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of cerium element on the as-cast microstructure of a hypereutectic high chromium cast iron (HCCI) containing 4.0 wt.% C and 20.0 wt.% Cr was studied by means of optical microscopy (OM), scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDS). The results indicate that the primary M7C3 carbides are refined and spheroidized with the addition of suitable amount of cerium. Ce2O2S is found in the primary carbide. The mechanism of Cerium modification on microstructure of the alloy is also discussed. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：3024 / 3027

页数：4

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