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

摘要：

　　The 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 the performance of the obtained HCCIs under as-cast,as-quenched and as-tempered conditions were investigated.The results showed that the microstructure of the LFC produced HCCIs were refined with the introduction of vibration during solidification.The hardness of the HCCIs improved under different conditions when compared to that of the sample without vibration.However,only a slight increase of hardness was found with increasing of vibration frequency.In contrast,the impact toughness of the HCCIs under as-tempered condition increased with the increase of vibration frequency.As a result,the wear resistance of the HCCIs improved with the introduction of vibration and increased with increasing the vibration frequency.

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

作者: Zou Wenqi Zhang Zhiguo Yang Hao Li Wi

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

会议类型: 国际会议

会议名称: 2016WFO、铸铁、铸钢技术国际论坛

会议地点: 北京

会议语种:英文

页码: 1-6

在线出版日期: 2016-05-18（万方平台首次上网日期，不代表论文的发表时间）