邱毫,周晓玲,王剑华,李增,刘雯

• 1:昆明理工大学材料科学与工程学院

摘要(Abstract)：

讨论了背散射电子衍射(EBSD)技术在获得有关Fe-2Si-3Mn(at%)铸钢磁诱发珠光体(MIP)相变的多相组织信息方面的实际应用。结果表明,面扫描中电子背散射衍射花样(EBSDP)的标定率与MIP的转变量关系极大,转变量越大则标定率越高,面扫描分析数据能更好地反映MIP的分布、取向和结构信息,相变初期形成的珠光体MIP存在微织构<100>//ND;相变早期形成的珠光体量较少,区域扫描中EBSDP标定率低,晶体学取向分析可用各个珠光体(P)团内铁素体片的点分析结果的集合来定性描述,有望获得磁场处理后多晶样品表面的微织构信息。对实际样品的分析还表明:同一P团可由多形核机制形成;相变的初期阶段在原奥氏体晶界上的不连续析出物为铁素体。

关键词(KeyWords)： 珠光体;相变;磁场;背散射电子衍射(EBSD)

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(50971067)

作者(Author): 邱毫,周晓玲,王剑华,李增,刘雯

DOI: 10.13289/j.issn.1009-6264.2013.02.001

参考文献(References)：

• [1]Field D P.Recent advances in the application of orientation imaging[J].Ultramicroscopy,1997,67(1-4):1-9.
• [2]Molodov D A,Sheikh-All A D.Effect of magnetic field on texture evolution in titanium[J].Acta Mater,2004,52(14):4377-4383.
• [3]曹圣泉,张津徐,吴建生.IF钢再结晶晶粒尺寸、显微织构和晶界特征的EBSD研究[J].理化检验-物理分册,2004,40(4):163-167.CAO Sheng-quan,ZHANG Jin-xu,WU Jian-sheng.Recrystal grain size,microtexture and grain boundary character distributions of IF steels studied byEBSD[J].Physical Testing and Chemical Analysis(Part A:Physical Testing),2004,40(4):163-167.
• [4]于凤云,王轶农,蒋奇武.深冲IF钢再结晶{111}纤维织构形成机制探讨[J].材料科学与工艺,2008,16(5):724-727.YU Feng-yun,WANG Yi-nong,JIANG Qi-wu.Formation mechanism of{111}recrystallization texture in IF steel[J].Materials Science&Technology,2008,16(5):724-727.
• [5]Kamikawa N,Tsuji N,Minaminpo Y.Microstructure and texture through thickness of ultralow carbon IF steel sheet severely deformed by accumulativeroll-bonding[J].Science and Technology of Advanced Materials,2004,5(1-2):163-172.
• [6]Wilson A W,Spanos G.Application of orientation imaging microscopy to study phase transformations in steels[J].Materials Characterization,2001,46(5):407-418.
• [7]Miyamoto G,Takayama N,Furuhara T.Accurate measurement of the orientation relationship of lath martensite and bainite by electron backscatterdiffraction analysis[J].Scripta Materialia,2009,60:1113-1116.
• [8]杨平,张栋华,孙祖庆.Q235碳素钢超细铁素体在奥氏体内的形核[J].北京科技大学学报,2002,24(2):211-215.YANG Ping,ZHANG Dong-hua,SUN Zu-qing.Nucleation of ultra-fine ferrite in austenite of a Q235 low carbon steel[J].Journal of University ofScience and Technology Beijing,2002,24(2):211-215.
• [9]Artur Walentek,Marc Seefeldt,Bert Verlinden,et al.Investigation of pearlite structure by means of electron backscatter diffraction and image analysisof SEM micrographs with an application of the Hough transform[J].Materials Science and Engineering A,2008,483-484:716-718.
• [10]ZHOU Xiao-ling,ZHOU Rong,ZHANG Peng-xiang,et al.Magnetic field induced pearlite transformation in Fe-0.47C-2.31Si-3.15Mn steel above theeutectoid temperature[J].Materials Science and Engineering A,2009,525(1-2):42-47.

文章评论(Comment)：