欢迎登录材料期刊网

材料期刊网

高级检索

研究了终冷温度和等温时间对中低碳纳米贝氏体钢显微组织演变的影响.结果表明,实验钢采用缓冷至低于Ms0温度后等温工艺,可获得纳米贝氏体钢.随着终冷温度降低,贝氏体增多,残留奥氏体的含量先升高后降低,300℃终冷,组织中未转变奥氏体大量转变为贝氏体,残留奥氏体减少,贝氏体板条最细,可达200 ~ 300 nm;300℃等温,随着等温时间增加,碳含量不同的未转变奥氏体,在低于实验钢M80温度高于未转变奥氏体Ms'温度时,相继发生贝氏体转变,组织中贝氏体的含量不断升高,等温5h后,贝氏体含量高于75%.

参考文献

[1] Irvine K J;Pickering F B .Low Carbon Bainitic Steels[J].Iron and Steel Inst,1957,187:292-309.
[2] 黄维刚,方鸿生,郑燕康.C-Si-Mn-B系贝氏体钢的强度及强化机制[J].钢铁研究学报,2003(01):38-41.
[3] 方鸿生,冯春,郑燕康,杨志刚,白秉哲.新型Mn系空冷贝氏体钢的创制与发展[J].热处理,2008(03):2-19.
[4] 贺信莱;尚成嘉;杨善武.高性能低碳贝氏体钢:成分,工艺,组织,性能与应用[M].北京:冶金工业出版社,2008:58-81.
[5] F. G. Caballero;H. K. D. H. Bhadeshia;K. J. A. Mawella .Design of novel high strength bainitic steels: Part 1[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2001(5):512-516.
[6] F. G. Caballero;H. K. D. H. Bhadeshia;K. J. A. Mawella .Design of novel high strength bainitic steels: Part 2[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2001(5):517-522.
[7] Caballero FG;Bhadeshia HKDH .Very strong bainite[J].Current opinion in solid state & materials science,2004(3/4):251-257.
[8] S. SHARMA;S. SANGAL;K. MONDAL .Development of New High-Strength Carbide-Free Bainitic Steels[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2011(13):3921-3933.
[9] X.L. Wang;K.M. Wu;F. Hu.Multi-step isothermal bainitic transformation in medium-carbon steel[J].Scripta materialia,2014:56-59.
[10] 陈雨来,董长征,蔡庆伍,万德成,李亮,齐越.Mo和Ni对高强无碳化物贝氏体钢组织转变与力学性能的影响[J].材料工程,2013(09):16-21.
[11] 宋维锡.金属学[M].北京:冶金工业出版社,2008:325-326.
[12] 方鸿生;王家军;杨志刚.贝氏体相变[M].北京:科学出版社,1999:84-87.
[13] X.Y. Long;F.C. Zhang;J. Kang;B. Lv;X.B. Shi.Low-temperature bainite in low-carbon steel[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2014:344-351.
[14] F.G. Caballero;M.K. Miller;C. Garcia-Mateo .Temperature dependence of carbon supersaturation of ferrite in bainitic steels[J].Scripta materialia,2012(10):846-849.
[15] F.G. Caballero;M.K. Miller;C. Garcia-Mateo .Carbon supersaturation of ferrite in a nanocrystalline bainitic steel[J].Acta materialia,2010(7):2338-2343.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%