梁益龙,梁宇,朱建培,杨明,向嵩

• 1:贵州大学材料与冶金学院
• 2:贵州省材料结构与强度重点实验室

摘要(Abstract)：

以SWRS82B盘条钢为研究对象,研究了钒元素对高碳钢在连续冷却条件下索氏体形核的影响规律,采用光学显微镜、SEM及能谱对索氏体形核过程进行了观测和分析。研究发现,索氏体的形核位置主要是在V、S元素的富集区域。V的加入增大了渗碳体的形核驱动力,具有B1结构的VC会在同样B1结构的非共格MnS界面析出,VC的析出造成其附近区域出现局部贫碳区,连续冷却过程中由低能的索氏体/析出相界面取代奥氏体/析出相界面,索氏体团在MnS+VC复杂析出相的VC界面形核。

关键词(KeyWords)： 高碳盘条钢;索氏体形核;钒元素

Abstract:

Keywords:

基金项目(Foundation): 国家科技支撑计划(2007BAE16B01);; 贵州省科学技术基金([2009]2231);; 贵州大学引进人才科研项目(2009-014)

作者(Author): 梁益龙,梁宇,朱建培,杨明,向嵩

DOI: 10.13289/j.issn.1009-6264.2010.12.011

参考文献(References)：

• [1]蔡爱国.铌钒微合金中碳钢的微观组织与强度的关系[J].钢铁研究学报,1996,8(2):35-39.
• [2]Nam W J,Bae C M,Oh S J,et al.Effect of interlamellar spacing on cementite dissolution during wire drawing of pearlitic steel wires[J].ScriptaMater,2000,42(5):457-463.
• [3]李翔,康永林,顾克井,等.铌微合金化高碳钢的连续冷却转变[J].钢铁研究学报,2004,16(3):44-48.
• [4]Yamamoto K,Hasegawa T,Takamura J.Effect of boron on intra-granular ferrite formation in Ti-oxide bearing steels[J].ISIJ Int,1996,36(1):80-86.
• [5]Zhang Z,Farrar R A.Role of non-metallic inclusions in formation of acicular ferrite in low alloy weld metals[J].Mater Sci Technol,1996,12(3):237-260.
• [6]Madariaga I,Gutiérres I,de Andrés C G,et al.Acicular ferrite formation in a medium carbon steel with a two stage continuous cooling[J].ScriptaMaterialia,1999,41(3):229-235.
• [7]Ishikawa F,Takahashi T,Ochi T.Intragranular ferrite nucleation in medium-carbon vanadium steels[J].Metall Trans A,1994,25(5):929-936.
• [8]Enomoto M.Nucleation of phase transformation at intragranular inclusions in steel[J].Met Mater,1998,4(2):115-123.
• [9]Miyamoto G,Shinyoshi T,Yamaguchi J.Crystallography of intra-granular ferrite formed on(MnS+V(C,N))complex precipitate in austenite[J].Scripta Mater,2003,48(4):371-377.
• [10]Guo Z,Kimura N,Tagashira S,et al.Kinetics and crystallography of intragranular pearlite transformation nucleated at(MnS+VC)complexprecipitates in hypereutectoid Fe-Mn-C alloys[J].ISIJ Int,2002,42(9):1033-1041.
• [11]Zhang J Q,Liang Y L,Xiang S,et al.Effect of heat treatment process on microstructure and mechanical properties of SWRS82B wire rod[J].Advanced Materials Research,2009,97-101:752-755.
• [12]杨小弟.SWRS82B盘条钢显微组织参量对力学性能影响规律的初步研究[D].贵州:贵州大学,2010.
• [13]沈金龙,覃之光,夏艳花,等.钒氮合金在高碳钢WSWRH82B中的应用[J].钢铁钒钛,2009,30(4):21-26.
• [14]Furuhara T,Yamaguchi J,Sugita N,et al.Nucleation of proeutectoid ferrite on complex precipitates in austenite[J].ISIJ Int,2003,43(10):1630-1639.
• [15]Han K,Mottishaw T D,Smith G D W,et al.Effects of vanadium addition on nucleation and growth of pearlite in high carbon steel[J].Mater SciTechnol,1994,10(11):955-963.

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