Research Progress on Properties of Compacted Graphite Iron and Application in Internal Combustion Engine
Author of the article:SUN Yucheng;MENG Di;JIANG Ailong;ZHENG Hongliang;TIAN Xuelei
Author's Workplace：State Key Laboratory of Engine Reliability Weichai Power Co.,Ltd.,Weifang 261061,China;Key Laboratory of Liquid Structure and Heredity of Materials,Ministry of Education,Shandong University,Jinan 250061,China
Key Words：compacted graphite iron application microstructure cooling rate research progress
Abstract：
As a kind of widely used power source,the thin-wall castings with complex structure such as cylinder block and cylinder head of high-power internal combustion engine tend to use compacted graphite iron(CGI)to meet the requirements of mechanical properties and thermal conductivity under the background of continuous improvement of lightweight and performance requirements.However,it is difficult to control the production process of CGI and ensure its quality consistency and stability.The growth mechanism of graphite in CGI was reviewed.The production technology and microstructure and property control of vermicular graphite cast iron were summarized.The problems existing in the production technology of CGI and the development direction of CGI is suggested.
