含硅钢短时等温下贝氏体的亚结构形状及生长特征
Substructure Morphology and Growth Characteritics of Low Bainite Formed by Short Isothermal Time in Silicon-Containing Steel
摘 要
采用光学显微镜及透射电子显微镜研究了Fe-0.88C-1.35Si-1.03Cr-0.43Mn钢在200℃短时等温获得的下贝氏体的显微形貌及其精细结构.结果表明:试验钢在200 ℃短时等温可获得宽度几十纳米,而长度在微米数量级的条状下贝氏体,在下贝氏体针内沿纵向存在大体与贝氏体针侧边界垂直且平行排列的位错列;贝氏体针纵向前沿的母相中存在间断的、层片状应变场衬度;下贝氏体相变早期具有马氏体切变相变的特征.
位错列
应变场
亚单元
low bainite
dislocation array
strain field
subunit
Abstract
The fine structure and micro appearance of the low bainite obtained by short isothermal time at 200 ℃ in Fe-0.88C-1.35Si-1.03Cr-0.43Mn steel had been examined by optical microscope and transmission electron microscope.The results show that the test steel obtained lath low bainite with the nanometers in width and the micron in length by short isothermal time at 200 ℃.Parallel dislocation arrays perpendicular to the side boundary of the bainite perpendicular to the side boundary of the bainite lath were formed along the longitudinal direction of the bainite lath,and discontinuous and lamellar strain field contrasts existed in the parent phase of the bainitic longitudinal frontier,the low bainite transformation showed martensitic shear characteristics.
中图分类号 TG111.5
所属栏目 试验研究
基金项目
收稿日期 2008/11/12
修改稿日期 2009/5/15
网络出版日期
作者单位点击查看
备注何烜坤(1984-),女,内蒙古包头人,硕士研究生.
引用该论文: HE Xuan-kun,LIU Qing-suo,LU Cui-min,JIANG Xun-yong. Substructure Morphology and Growth Characteritics of Low Bainite Formed by Short Isothermal Time in Silicon-Containing Steel[J]. Materials for mechancial engineering, 2009, 33(12): 33～35
何烜坤,刘庆锁,陆翠敏,姜训勇. 含硅钢短时等温下贝氏体的亚结构形状及生长特征[J]. 机械工程材料, 2009, 33(12): 33～35
被引情况:
【1】董彦,龚志翔,肖国华, "退火工艺参数对冷轧无取向电工钢薄板显微组织和磁性能的影响",机械工程材料 36, 22-25(2012)
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】AARONSONH I,WELL C.Sympathetic nucleation of ferrite[J].Trans AIME,1956,206:1216-1223.
【2】OLACK J M,HEHEMANN R F.Transformation and har-denability in steels[M].Ann Arbor,MI:Climax Molybdenum Company,1967:5-30.
【3】方鸿生,杨志刚,杨金波,等.钢中贝氏体相变机制的研究[J].金属学报,2005,41(5):449-457.
【4】李凤照,敖青.贝氏体的精细结构和界面结构的TEM和HREM研究[J].中国科学E辑,1996,26(5):417-423.
【5】YOKOTA T,GARCIA MATEO C,BHADESHIA H K D H.Formation of nanostructured steels by phase transformation[J].Scripta Mater,2004,51(8):767-770.
【6】TRIVEDI R.The role of interfacial free energy and interface kinetics during the growth of precipitate plates and needles[J].Met Trans,1970,1(4):921-927.
【2】OLACK J M,HEHEMANN R F.Transformation and har-denability in steels[M].Ann Arbor,MI:Climax Molybdenum Company,1967:5-30.
【3】方鸿生,杨志刚,杨金波,等.钢中贝氏体相变机制的研究[J].金属学报,2005,41(5):449-457.
【4】李凤照,敖青.贝氏体的精细结构和界面结构的TEM和HREM研究[J].中国科学E辑,1996,26(5):417-423.
【5】YOKOTA T,GARCIA MATEO C,BHADESHIA H K D H.Formation of nanostructured steels by phase transformation[J].Scripta Mater,2004,51(8):767-770.
【6】TRIVEDI R.The role of interfacial free energy and interface kinetics during the growth of precipitate plates and needles[J].Met Trans,1970,1(4):921-927.
相关信息
