ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2007, Vol. 28 ›› Issue (2): 26-28.

• 试验研究 • 上一篇    下一篇

热轧参数对粗奥氏体晶粒铌钢变形抗力的影响

阴树标1,2,刘清友2,孙新军2,文建华2,雷霆1   

  1. 1昆明理工大学材料与冶金工程学院,昆明630091 ;
    2钢铁研究总院结构材料研究所,北京100081
  • 收稿日期:2006-11-14 出版日期:2007-04-01 发布日期:2023-03-09
  • 作者简介:阴树标(1977-),男,博士,从事钢铁材料研究。
  • 基金资助:
    973国家重点基础研究资助项目(编号2004C6619101)

Effect of Hot Rolling Parameters on Deformation Resistance of Coarse-Grained Niobium Steel

Yin Shubiao1,2, Liu Qingyou2, Sun Xinjun2, Wen Jianhua2,Lei Ting1   

  1. 1 School of Material and Metallurgy Engineering, Kunming University of Science and Technology, Kunming 630091;
    2 Institute of Structural Materials, Central Iron and Steel Research Institute, Beijing 100081
  • Received:2006-11-14 Published:2007-04-01 Online:2023-03-09

摘要: 通过Thermecmastor-Z热模拟试验机,在900-1 050℃以变形速率1-20 s-1、真应变0-0.7研究了晶粒尺寸800μm的铌钢(%:0.05C、1.44Mn、0.13Nb)奥氏体控轧过程的变形抗力,并建立了变形抗力的回归方程。试验结果表明,随温度增高,铌钢在奥氏体区变形抗力递减;在同一温度下,随变形程度增加,钢的变形抗力增加;同时在给定变形程度下,变形抗力随变形速率增大而增大;变形抗力回归方程计算值与实测值相差≤5 MPa。

关键词: 铌钢, 奥氏体, 热轧参数, 变形抗力, 数学模型

Abstract: The deformation resistance of niobium steel 0. 05C, 1. 44Mn, 0. 13Nb with austenite grain size 800 μm during control rolling at 900 ~ 1 050 °C with deformation rate 1 ~ 20 s ~ and true strain 0 -0. 7 has been studied by Thermecomaster-Z thermal simulation test machine, and a regression equation for deformation resistance is established. Test results showed that with increasing temperature, deformation resistance of niobium steel in austenite region decreased, at same temperature with increasing straining, deformation resistance of steel increased, and at given straining deformation resistance increased with increasing deformation rate. The difference in deformation resistance between calculation value by regression equation and measured value was W5 MPa.