纯铁三维显微组织的尺寸和拓扑特征  

Grain size and topology characteristics of pure iron microstructure in three-dimensional space

作　　者：王耀华[1] 王浩[2] 刘国权[2,3] 薛维华[2] Wang Yaohua Wang Hao Liu Guoquan Xue Weihua(Beijing Institute of Aeronautical Materials, Beijing 100095, China School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China)

机构地区：[1]北京航空材料研究院,北京100095 [2]北京科技大学材料科学与工程学院,北京100083 [3]北京科技大学钢铁共性技术协同创新中心,北京100083

出　　处：《金属热处理》2016年第10期191-194,共4页Heat Treatment of Metals

基　　金：国家自然科学基金(51571020;51371030);国家高技术研究发展计划(863计划)(2015AA034201)

摘　　要：采用系列截面法试验,对工业纯铁退火的显微组织进行了三维重构,测量了三维晶粒的尺寸和拓扑特征。结果表明,三维晶粒的体积分布呈单调递减趋势,而晶粒的表面积分布在S/The annealing microstructure of pure iron was reconstructed via serial sectioning experiment and the grain size and topology characteristics were measured. The results show that the grain volume distribution decreases with increasing of grain volume,whereas the surface area has a peak around S / S = 0. 2. The peak value of the grain size distribution of pure iron is lower than simulation structures of phase field,surface evolver,Monte Carlo,and etc.,which somewhat shows the difference between simulation microstructure and real metal microstructure affected by complex factors of anisotropy,second phase particles,etc. The reconstruction and visualization program developed in this paper shows the grain morphology with distinct grain boundary surface as well as the space distribution of neighboring grains.

关 键 词：显微组织 晶粒尺寸 拓扑学 三维重建 Schlegel图 

分 类 号：TG111[金属学及工艺—物理冶金] O189[金属学及工艺—金属学]