王建民,梁御阳,邱日盛,栾佰峰,Murty K L,刘庆.Zr-Cr-Fe合金马氏体相变过程中三变体团簇的择优形成及其晶体学分析[J].稀有金属材料与工程,2019,48(2):426~432.[Wang Jianmin,Liang Yuyang,Qiu Risheng,Luan Baifeng,Murty Korukonda L,Liu Qing.The preferred formation and crystallographic analysis of three-variant cluster in Zr-Cr-Fe alloy during martensitic transformation[J].Rare Metal Materials and Engineering,2019,48(2):426~432.]
Zr-Cr-Fe合金马氏体相变过程中三变体团簇的择优形成及其晶体学分析
投稿时间:2017-07-31  修订日期:2017-09-04
中文关键词:  Zr-Cr-Fe  Burgers取向关系  自我协调  三变体团簇  
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
中文摘要:
      采用ECC, TEM和EBSD表征技术,研究了Zr-Cr-Fe合金经β相淬火后的马氏体组织特征。结果表明:马氏体相变过程中,任一高温β相都能够转变为12个α马氏体变体。而这12个α马氏体变体并不是随机分布的,而是择优形成了四个亚区域。每一个亚区域由一种三变体团簇组成,而该三变体团簇表现为典型的三角形自我协调形貌。进一步晶体学分析表明:组成每一个团簇的这三个马氏体变体与母相之间存在一个共同的 极点,同时该三变体相互之间的取向关系为 。由于在β→α马氏体相变过程中存在形状应变,而三变体团簇的形成能够最大程度的协调该应变。
The preferred formation and crystallographic analysis of three-variant cluster in Zr-Cr-Fe alloy during martensitic transformation
英文关键词:Zr-Cr-Fe alloy  Burgers orientation relationship  Self-accommodation  Three-variant cluster  
英文摘要:
      The martensitic microstructure of Zr-Cr-Fe alloy after β-quenching are investigated by a combination of electron channeling contrast imaging (ECC), transmission electron microscopy (TEM) and electron backscatter diffraction (EBSD) techniques. All of theoretical 12 α variants inherited from one single β phase have been obtained in the current study that revealed strict Burgers orientation relationship (BOR) with respect to β parent phase. The entire martensitic microstructure consisting of these 12 α variants in the as-quenched Zr-Cr-Fe alloy can be divided into four sub-regions or morphological groups. Each sub-region, in turn, is dominated by only one type of three-variant cluster (one crystallographic group composed of three α variants) showing the self-accommodation triangular morphologies. These three variants from individual cluster share a common pole of β parent phase and are related to each other by an angle/axis pair . The preferred formation of such three-variant cluster is ascribed to the elastic interaction between variants to achieve the largest degree of self-accommodation.
作者单位E-mail
王建民 材料科学与工程学院 543696146@qq.com 
梁御阳 材料科学与工程学院  
邱日盛 材料科学与工程学院  
栾佰峰 材料科学与工程学院 bfluan@cqu.edu.cn 
Murty K L 北卡罗来纳州立大学  
刘庆 材料科学与工程学院  
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