超声波熔体处理对高碳钢凝固组织和性能的影响.pdfVIP

学兔兔 Oct．2008 铸 造 VOI．57 NO．1O F0UNDRY ·1009· 超声波熔体处理对高碳钢凝固组织和性能的影响 李 杰 一，陈伟庆 (1．安徽工业大学冶金与资源学院，安徽马鞍山243002；2．北京科技大学 台金与生态工程学院，北京 100083) 摘要：研究了超声波熔体处理对加稀土的高碳钢凝固组织和力学性能的作用，分析了不同超声波功率对其凝固组织和 力学性能的影响。结果表明：超声波处理．-q以明显细化加稀土的高碳钢的凝固组织；随着超声波功率的增加，组织细 化程度提高，功率提高到一定程度，细化作用不再明显增强；超声处理对加稀土的高碳钢强度的影响不大，但是其断 面收缩率提高了17．87％-35．64％、伸长率提高了66．54~／0-102．90％。 关键词：超声波；高碳钢；凝固组织；力学性能 中图分类号：TG142．31 文献标识码：A 文章编号：1001—4977(2008)10—1009-04 E仟lect of Ultrasonic Melt Treatment on Solidification Structure and Properties of High Carbon SteeI LI Jie’一．CHEN Wei-qing (1．Metallurgy and Resources Institute，Anhui University of Technology，Ma。anshan 243002， Anhui。China；2．Metallurgical and Ecological Engineering School，University of Science Technology Beijing，Beijing 1 00083) Abstract：The study was carried out to investigate the influence of ultrasonic melt treatment as welI as various ultrasonic powers on solidification structure and mechanicaI property of high carbon stee1 with rare each．The results showed that ultrasonic treatment could obviously refine the solidification structure of high carbon steeI containing rare each．With increasing of ultrasonic power．a more refined structure could be obtained．However，when the ultrasonic power exceeded a certain degree， the effects of ultrasonic on structure refinement were not increased significantly．There was little influence of ultrasonic treatment on the strength of high carbon steel with rare earth．but the reduction of area was increased by 1 7。87％．35．64％，and the elongation was enhanced 66．54％．1 O2．90％． Key words：ultra