EH40钢性能及析出相的研究  

STUDY ON PROPERTY AND PRECIPITATION BEHAIVOR OF EH40 STEEL

作　　者：朱爱玲[1] 彭晟[2] 张恒华[2] 朱松鹤[2] 邵光杰[2] 许珞萍[2] 

机构地区：[1]南京钢铁集团有限公司,南京210035 [2]上海大学材料科学与工程学院

出　　处：《上海金属》2009年第2期28-31,共4页Shanghai Metals

摘　　要：采用力学分析方法,对铌钒钛复合微合金化EH40钢板性能进行了研究,结果表明,与普通16Mn钢相比,EH40钢综合性能得到明显提升。采用H-800透射电镜对钢中第二相不同阶段的析出行为进行的研究表明钢中粗大析出相为TiN颗粒,Nb和V的碳氮化物在随后的控轧控冷阶段中析出,并对各阶段析出物对材料力学性能的影响进行了探讨。Comparing to the plain carbon steel the comprehensive property of the EH40 steel was improved obviously. The mechanical properties of EH40 steel plate micro-alloyed with Nb, V and Ti were studied by mechanical analyzing. TEM measurement of the precipitation behavior of second phase in different stages during controlled rolling and controlled cooling showed the coarse precipitation phase was TiN particle, the （Nb, V） （C, N） precipitated at the later controlled rolling and controlled cooling stage. The influence of the precipitates in the steel on the property was discussed.

关 键 词：EH40钢 微合金化 力学性能 析出相 

分 类 号：TG146.15[一般工业技术—材料科学与工程] TF7[金属学及工艺—金属材料]