珠光体型低铬铸铁冲击疲劳抗力及冲击磨损性能  

IMPACT FATIGUE RESISTANCE AND IMPACT ABRASION RESISTANCE OF PEARLITIC LOW CHROMIUM CAST IRON

作　　者：贺林[1] 张长军[1] 

机构地区：[1]西安交通大学,西安公路交通大学

出　　处：《钢铁》1996年第11期48-52,共5页Iron and Steel

摘　　要：研究了碳、铬含量对珠光体基体低铬铸铁冲击疲劳抗力及冲击磨损性能的影响。结果表明：碳含量在２．３７％～２．６９％时低铬铸铁可获得较高的冲击疲劳抗力及以石英砂为磨料的较好冲击磨损耐磨性；碳含量变化时，低铬铸铁的冲击疲劳抗力及冲击磨损耐磨性与其相对韧性之间存在良好的一致性；铬含量的增加可改善低铬铸铁的综合性能。The effect of carbon and chromium content on the impact fatigue resistance and impact abrasion resistance of pearlitic low chromium cast iron has been investigated in this paper.The results indicate that better impact fatigue resistance and impact abrasion resistance using silica as abrasive are obtained when carbon content is 2.37%～2.69%.As carbon content changing,the impact fatigue resistance and impact abrasion resistance of pearlitic low chromium cast iron is consistent with its relative toughness which equals bending strength times flexibility.If the chromium content is increased,the comprehensive properties of the cast iron will be improved.

关 键 词：冲击疲劳 冲击磨损 白口铁 珠光体型 

分 类 号：TG143.1[一般工业技术—材料科学与工程]