Use of electron microscopy on microstructure characterization of high chromium cast irons

作     者：J.T.H. Pearce T. Chairuangsri A. Wiengmoon N. Poolthong H. Nomura 

作者机构：MTEC-National Metals and Materials Technology Centre Department of Industrial Chemistry Chiang Mai University Department of Physics Naresuan University Division of Materials Technology King Mongkut's University of Technology Thonburi Department of Materials Nagoya University 

出 版 物：《China Foundry》 (中国铸造（英文版）)

年 卷 期：2007年第4卷第1期

页      面：38-43页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：high chromium cast iron electron microscopy microstructure characterization 

摘      要：The physical metallurgy underlying the development of cast microstructures in abrasion resistant high chromium cast irons, and their structural modification by thermal treatments is relatively complex. Structural characterisation via electron microscopy therefore has a key role to play in furthering our understanding of the phase transformations that control the microstructures and hence the service performances of these irons as wear parts. This paper shows how both scanning and especially transmission electron microscopy can provide valuable information on the nature of eutectic and secondary carbides and on the matrix structures in these irons. Particular attention is given to current characterisation research on conventionally cast 30%Cr irons that are used for applications involving corrosive wear e.g. slurry pumps and on a semi-solid cast 27%Cr iron that has a potential for applications in industry.