Influence of Vibration Frequency on Microstructure and Performance of High Chromium Cast Iron Prepared by Lost Foam Casting

摘要：

　　In the present research,high chromium cast irons(HCCIs)were prepared using lost foam casting(LFC)process with different mechanical vibration frequencies in vertical vibration mode.The influence of vibration frequency on the microstructure and performance of the HCCI samples under as-cast,as-quenched and as-tempered conditions were each investigated.The results show that the microstructure of the LFC produced HCCI samples are refined with the introduction of vibration during the solidification,and the hardness of the HCCI samples is improved under different conditions compared to that of the sample without vibration.However,only a slight increase of hardness was found with an increase in the vibration frequency.In contrast,the impact toughness of the HCCI samples under astempered condition increases with the increase of vibration frequency.As a result,the wear resistance of the HCCI samples is improved with the introduction of vibration and increases with the increase of the vibration frequency.

关键词： high chromium cast iron lost foam casting vibration frequency microstructure wear resistance

作者: Wen-qi Zou Zhi-guo Zhang Hao Yang Wei Li

作者单位: Department of Materials Science and Engineering,Jinan University,Guangzhou 510632,China;Guangdong Do Department of Materials Science and Engineering,Jinan University,Guangzhou 510632,China Department of Materials Science and Engineering,Jinan University,Guangzhou 510632,China;Shaoguan Res

会议类型: 国内会议

会议名称: 第十二届中国铸造协会年会暨全球首届铸造论坛、第六届中国金砖国家铸造业论坛

会议地点: 北京

会议语种:英文

页码: 45-51

在线出版日期: 2016-05-14（万方平台首次上网日期，不代表论文的发表时间）