纯铁退火组织中特大晶粒三维拓扑与取向特征的定量研究

doi:10.13251/j.issn.0254-6051.2020.02.047

金属热处理 ›› 2020, Vol. 45 ›› Issue (2): 239-241.DOI: 10.13251/j.issn.0254-6051.2020.02.047

纯铁退火组织中特大晶粒三维拓扑与取向特征的定量研究

王浩¹, 薛维华^1,2, 张一帆¹, 刘国权¹

1. 北京科技大学材料科学与工程学院, 北京 100083;
2. 辽宁工程技术大学材料科学与工程学院, 辽宁阜新 123099

收稿日期:2019-09-18 出版日期:2020-02-25 发布日期:2020-04-03
作者简介:王浩(1979—),男,博士,主要从事三维材料科学和计算材料学研究,联系电话: 010-62334314,E-mail:hwang@ ustb.edu.cn。
基金资助:
国家自然科学基金(51571020)

Quantitative characterization of 3D topology and orientation features of exceptional big grains in annealed pure iron

Wang Hao¹, Xue Weihua^1,2, Zhang Yifan¹, Liu Guoquan¹

1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. School of Materials Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123099, China

Received:2019-09-18 Online:2020-02-25 Published:2020-04-03

摘要/Abstract

摘要：

联合采用系列截面法和EBSD技术对含有特大晶粒的工业纯铁退火组织进行了三维重建和定量表征研究,重点分析了特大晶粒与普通晶粒之间的差异。三维重构的纯铁样品尺度为1920 μm×1219 μm×720 μm,包含12354个晶粒(其中有5个完整特大晶粒)。与以往三维重建的无晶体学取向信息的晶粒组织不同,本文三维重建的晶粒组织同时含有晶粒的三维几何形态信息和晶体学取向信息。研究结果表明,所研究的特大晶粒具有的界面个数为128~669(即最大晶粒同时具有高达669个邻接晶粒),其与相邻晶粒之间的平均取向差以及位于40°~55°区间的晶粒取向差明显大于普通晶粒之间的取向差。

关键词: 退火纯铁, 特大晶粒, 三维几何形态, 晶粒取向, 三维重建

Abstract:

Three-dimensional (3D) characterization of the microstructure containing exceptional big grains of industrial pure iron was carried out by means of serial sectioning, 3D reconstruction,and EBSD analysis. The differences between the exceptional big grains and the normal grains were analyzed in emphases. The dimensions of the 3D reconstructed pure iron sample are 1920 μm×1219 μm×720 μm, containing 12354 grains which includes5whole exceptional big ones. Different from previous reconstructed 3D grain microstructures without crystallographic orientation information,the present reconstructed 3Dgrains containsimultaneously both the geometric configuration information and the crystallographic orientation information of grains.The results show that the numbers of interfaces of the 5 exceptional big grains studied arein the range of 128-669 (i.e., the largest grain contacts simultaneously 669 neighboring grains). The average misorientation between the exceptional big grains and theirneighboring grains, and theirmisorientationwith their neighbors in the range of 40°-55°, are evidently higher than that between ordinary grains.

Key words: annealed pure iron, exceptional big grain, 3D geometric configuration, grain orientation, 3D reconstruction

中图分类号:

TG111
O189

王浩, 薛维华, 张一帆, 刘国权. 纯铁退火组织中特大晶粒三维拓扑与取向特征的定量研究[J]. 金属热处理, 2020, 45(2): 239-241.

Wang Hao, Xue Weihua, Zhang Yifan, Liu Guoquan. Quantitative characterization of 3D topology and orientation features of exceptional big grains in annealed pure iron[J]. HTM, 2020, 45(2): 239-241.

[1]	杨正斌, 李艳, 黄喆辉, 王红坤, 项继圣, 赵鸿金. 冷轧变形量对Al-Mg-Si合金织构的影响[J]. 金属热处理, 2020, 45(3): 122-127.
[2]	李骆宾, 江鹏, 任广猛, 张可, 王昊, 冉瑞英, 张屹. 轧制路径对ZK60镁合金板材组织和性能的影响[J]. 金属热处理, 2020, 45(2): 36-41.
[3]	段美琪, 曹建春, 王瑞珍, 蔡梦茹, 葛昕. Si含量及终轧温度对屏蔽用电磁纯铁磁性能的影响[J]. 金属热处理, 2020, 45(2): 66-71.
[4]	贾书君，刘清友, 李拔. EBSD技术在厚规格管线钢DWTT性能研究中的应用[J]. 金属热处理, 2016, 41(4): 197-200.
[5]	王耀华1,王浩2，刘国权2,3，薛维华2. 纯铁三维显微组织的尺寸和拓扑特征[J]. 金属热处理, 2016, 41(10): 191-194.
[6]	党宁，张文康2，李志超1，孙强1. 高温退火工艺对CGO硅钢Goss织构及磁性能的影响[J]. 金属热处理, 2016, 41(1): 24-28.

纯铁退火组织中特大晶粒三维拓扑与取向特征的定量研究

Quantitative characterization of 3D topology and orientation features of exceptional big grains in annealed pure iron

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 6

编辑推荐

Metrics

本文评价