A Study on the Effects of Heat Treatment to the high-carbon HSS Roll

摘要：

High-carbon high-speed steels (HSS) are extremely abrasion resistant materials due to their high hardness MC type carbide and high hardness martensitic matrix. Different microstructures and mechanical behaviours were obtained after the quenching and tempering temperatures of HSS roll were changed. With air cooling and sodium silicate quenching, when the austenitizing temperature reaches 1273K, the metal matrix all transforms into the martensite, Afterwards, the eutectic carbides dissolve ceaselessly into the metal matrix and its continuous network distribution changes into broken network. The peak hardness temperature of high-carbon HSS is around 1323K, and the second hardening temperature is around 793K. No significant change in tensile strength and elongation percentage was observed unless the tempering temperature is beyond 753K. The tensile strength is increased obviously and the elongation percentage is decreased slightly beyond 753K. However, the tensile strength is decreased and the elongation percentage is increased when the temp exceeds 813K. The high-carbon HSS roll presents excellent abrasion resistance at 793K-813K.

关键词： High-carbon HSS roll Quenching temperature Tempering temperature Mechanical property Abrasion resistance

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: 500-505

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）