钢中夹杂物含量及其形态对钢力学性能的影响  

INFLUENCE OF INCLUSION CONTENT AND MORPHODOGY ON MECHANICAL PROPERTIES OF STEEL

作　　者：许中波[1] 

机构地区：[1]北京科技大学,德国亚琛工业大学

出　　处：《钢铁研究学报》1994年第4期18-23,共6页Journal of Iron and Steel Research

摘　　要：在实验室１６ｋｇ真空感应炉上对铝镇静钢水用ＣａＯ－ＣａＦ＿２－Ａｌ和ＣａＯ－ＧａＦ＿２－Ａｌ－Ｃａ进行精炼处理，降低了钢中硫含量和总氧含量，研究了钢中氧化物和硫化物夹杂的含量及其形态对钢力学性能，尤其是冲击韧性的影响。钢水经钙处理后，钢中硫含量和总氧含量都可降低到１０ｐｐｍ以下，且钢中Ａｌ＿２Ｏ＿３和ＭｎＳ夹杂物能完全转变成硫化钙和铝酸钙，钢的转变温度低于—６０℃，而且钢的各向异性消失。The plain carbon steel was refined with the mixture of CaO-CaF_2-Al and CaO-CaF_2-Al with calcium added. The influence of oxygen and sulphur con-tent,and of inclusion morphology,on the toughness properties of the steel has been investigated.The treatment of steel with calcium reduced total oxygen and sulphur content to low level,improved inclusion morphology and increased toughness prop-erties. The anisotropy was eliminated and the transition temperature was lowered to below 60℃。

关 键 词：夹杂物形态 力学性能 钙处理 

分 类 号：TG142.13[一般工业技术—材料科学与工程]