V、N微合金化对高碳钢82B性能的影响  

Effect of V and N micro-alloying on properties of high carbon steel 82B

作　　者：王勇围[1] 桂美文[2] 周勇[2] 马党参[1] 董瀚[1] 

机构地区：[1]钢铁研究总院结构材料所,北京100081 [2]武汉钢铁集团公司,湖北武汉430083

出　　处：《材料热处理学报》2011年第1期82-86,共5页Transactions of Materials and Heat Treatment

摘　　要：研究了V和V、N微合金化高碳钢82B固溶加热连续冷却和高温热变形连续冷却后的强韧性。结果表明,固溶加热连续冷却后,82B钢随钒含量的增加,强度增加、塑性降低,塑性主要受索氏体片层间距的影响。经高温热变形连续冷却后,与未热变形的相比,试验钢的强度和塑性均显著提高,索氏体团显著细化,钒氮同时加的82B钢强韧性最高,热变形连续冷却后性能提高的原因主要是索氏体团的细化和V(CN)的形变诱导析出。Microstructure and properties of V and V /N micro-alloyed high carbon steel 82B after solution treatment then continuous cooling and thermal deforming and continuous cooling were studied.Results show that strength increases and plasticity decreases with V content increasing in 82B steel after solution treatment and continuous cooling,and plasticity is affected mainly by sorbite interlamellar spacing.However,both strength and plasticity of V micro-alloyed 82B steel increases significantly after thermal deforming then continuous cooling.The strength and plasticity of 82B steel with V and N exhibit the highest values at present study due to sorbite colony refining and deformation induced precipitation of V（CN）.

关 键 词：高碳钢82B 钒氮微合金化 热变形 索氏体团 

分 类 号：TG142.1[一般工业技术—材料科学与工程]