材料工程Issue(3)：38-42,55,6.
Co微合金化对高级别帘线钢组织与冷拉性能的影响
Influence of Co Micro-alloying on Microstructure and Drawing Properties of High-grade Tire Cord Steels
摘要
Abstract
The law of microstructures and properties of 80 and 100-grade tire cord steels with Co micro-alloying were investigated, in order to alleviate the precipitation of grain boundary cementite (GBC) and enhance their strengths and cold drawing properties. The microstructure, precipitation of GBC and the interlamellar spacing of pearlite of specimens with various Co contents were observed and measured using electron scanning microscope (SEM) ; the mechanical properties after hot working and cold drawing were measured by means of mechanical testing machines. It was shown that, the Co micro-alloying can decrease greatly the size of pearlite colony on condition of natural cooling; the ultimate strength were increased and the reduction of area decreased but GBC became severe with the contents of Co increasing. GBC were suppressed and cold drawing work hardening rate of high-grade tire cord steels improved after salt bath patenting.关键词
帘线钢/Co/GBC/显微组织/力学性能Key words
tire cord steel/Co/GBC/microstructure/ mechanical property分类
矿业与冶金引用本文复制引用
王洪利,刘宏玉,周鹏,费阳,黄彧,陈浩..Co微合金化对高级别帘线钢组织与冷拉性能的影响[J].材料工程,2012,(3):38-42,55,6.基金项目
湖北省教育厅高校产学研合作资助项目(C2010021) （C2010021）
冶金工业过程系统科学湖北省重点实验室开放基金(C201017) （C201017）
