摘要
采用Gleeble-3500型热模拟试验机对49MnVS3钢圆柱体试样进行了热压缩试验,研究了变形温度、变形量与冷却速率对49MnVS3钢组织及硬度的影响规律。结果表明,49MnVS3钢在各变形温度条件下的室温组织是铁素体和珠光体。在变形温度为850℃,变形程度为30%以及冷却速度为10℃/s变形时,其得到的组织分布均匀,钢中铁素体含量较少,珠光体含量高且细化明显。而随着冷却速度增加到20℃/s时,则出现了马氏体组织,影响钢的性能。
The thermal compression test of 49MnVS3 steel cylinder specimen was carried out using a Gleeble-3500 thermal simulation testing machine,and the influence of deformation temperature,-deformation degree and cooling rate on microstructure and hardness of 49MnVS3 steel was studied.The results show that the microstructure of 49MnVS3 steel at various deformation temperatures is composed of ferrite and pearlite.The pearlite is obviously homogeneous with 30% deformation than with 20% and 50% deformations,and the distribution of ferrite is more uniform.Under the conditions of deformation temperature of 850℃,deformation degree of 30% and cooling rate of 10℃/s,the microstructure is uniform,with less ferrite and more pearlite,and the refinement is obvious.However,as the cooling rate increases to 20℃/s,martensite microstructure occurs,which affects the performance of the steel.
作者
冯耀耀
王庆娟
杜忠泽
周民
FENG Yao-yao;WANG Qing-juan;DU Zhong-ze;ZHOU Min(School of Materials Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,Shaanxi,China;CISDI Chongqing Iron and Steel Making Plant Integration Co.,Ltd.,Chongqing 401122,China)
出处
《钢铁研究学报》
CAS
CSCD
北大核心
2018年第11期900-905,共6页
Journal of Iron and Steel Research
基金
陕西省工业科技攻关资助项目(2016GY-207)
西安市科技计划资助项目(JZKD002)
关键词
49MnVS3钢
热模拟
组织
硬度
49MnVS3 steel
thermal simulation
microstructure
hardness
作者简介
冯耀耀(1991-),男,硕士生;E-mail:fuu211666@live.com.通讯作者:王庆娟(1973-),女,博士,教授;E-mail:jiandawqj@163.com.
