微含金耐磨钢的研制和应用  

DEVELOPMENT AND APPLICATION OF MICROALLOY WEAR-RESISTING STEEL

作　　者：徐宏武[1] 高荣君[1] 郭松彩 牛景超 

机构地区：[1]中国矿业大学 [2]徐州电厂

出　　处：《钢铁》1993年第4期50-53,共4页Iron and Steel

摘　　要：微合金耐磨钢7WNbTiRE的硬度和韧性匹配良好,硬度(HRC)60以上的同时,冲击值(α_k)在12 J/cm^2以上,具有很好的抗磨性能。本文介绍了该钢的化学成分、组织及力学性能和大规模生产应用效果。以磨球产品为例。大型火电厂吨煤球耗在180克以下,远远低于能源部“七五”规划所要求的350 g以下的指标。The match of the hardness with toughness of microalloy wear-resistant steel 7WNbTiRE is good, while the hardness(HRC)≥60, its impact strength α_K≥12 J/cm^2. The steel has good wear-resistant properties. This paper discusses the chemical composition, structures, mechanical properties and large-scale production application results of the steel. For example the consumption of 7WNbTiRE steel ball in large power plant is lowered to below 180 g/t coal far below the indcx(350 g/t coal) required by The Ministry of Energy Resources during the 7th Five-Year Plan.

关 键 词：耐磨钢 微合金 磨球 硬度 冲击值 韧性 组织 产品 能源部 大规模生产 

分 类 号：TF321.1[冶金工程—冶金机械及自动化] TG142[一般工业技术—材料科学与工程]