Investigations on the crack of centrifugal casting high-speed steel rolls

摘要：

A study on solidification process of centrifugal cast high-speed steel (HSS) rolls and the crack forming condition is discussed. The result was represented that the crack forming was because of the solidification layer strength of HSS roll was low, and a clearance between the solidification layer and the mould, and the solidification layer of HSS roll could not endure a large centrifugal pressure. In common centrifugal casting, the free solidification constriction of HSS rolls was difficult, which accelerated the crack propagation. The appearance of mesosphere and axial solidification was unfavorable to obtaining the compact roll structures, which accelerated HSS rolls to crack.

关键词： high speed steel roll centrifugal casting solidification process crack mechanism

作者: Zhiqiang Jiang Xilan Feng Hanguang Fu

作者单位: School of Mechatronics Eng.,Zhengzhou Institute of Aeronautics,Zhengzhou 450015,China School of Materials Science and Eng.,Beijing University of Technology,Beijing 100022,China

会议类型: 国际会议

会议名称: 2010 International Conference on Material and Manufacturing Technology(2010材料与制造技术国际会议 ICMMT2010)

会议地点: 重庆

会议语种:英文

页码: 495-499

在线出版日期: 2010-09-17（万方平台首次上网日期，不代表论文的发表时间）