Effect of Sulfur Contents on Fracture Toughness of Wheel Steels for High Speed Train

摘要：

The effect of different contents of S on fracture toughness of railway wheel steels for high speed train has been researched.The results show that there are kinds of non-metallic inclusion when O content retaining at about 10ppm, such as Al2O3 inclusions and Al2O3+MnS complex inclusions and single MnS inclusions. This is connected with S content level in steel. Fracture toughness of railway steel increase obviously because of Al2O3 covered by MnS around when S content is increase to about 70ppm. It shows that,after Al2O3 covering by MnS around, stresses around complex inclusion decrease rapidly till disappear when analyzed by tessellated stresses theory. That is the reason of fracture toughness rise.

关键词： railway wheel steels fracture toughness inclusions tessellated stresses

作者: MA Yue PAN Tao JIANG Bo YANG Caifu SU Hang CUI Yinhui CHEN Gang

作者单位: Division of Structural Materials, Central Iron & Steel Research Institute, Beijing 100081, China Technology Centre,Ma’anshan Iron & Steel Co. , Ltd., Ma’anshan 243000, China

会议类型: 国际会议

会议名称: The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)

会议地点: 北京

会议语种:英文

页码: 598-603

在线出版日期: 2011-05-31（万方平台首次上网日期，不代表论文的发表时间）