论文标题
Fe-C Martensite的四边形 - 与X射线衍射相比的模式匹配的电子反向衍射分析
Tetragonality of Fe-C martensite -- a pattern matching electron backscatter diffraction analysis compared to X-ray diffraction
论文作者
论文摘要
通过电子反向散射衍射模式（EBSP）的模式匹配，在微结构长度尺度上测量了局部四面力，并列出了检测器几何形状的仔细校准。发现局部四边形在最大的复杂微观结构内变化了几％，并且在较高的名义碳含量下，轴向比率的散射增加。在某些分析点，局部晶体结构可以被认为是比起简单的人体四方低对称性。尽管平均轴向比率略低于从更古典的X射线衍射测量值获得的，但也获得了通过EBSD测量的名义碳含量与平均局部四方之间的线性关系。
Measurements of the local tetragonality in Fe-C martensite at microstructural length-scale through pattern matching of electron backscatter diffraction patterns (EBSPs) and careful calibration of detector geometry are presented. It is found that the local tetragonality varies within the complex microstructure by several per cent at largest and that the scatter in the axial ratio is increased at higher nominal carbon content. At some analysis points the local crystal structure can be regarded as lower symmetry than simple body centred tetragonal. A linear relation between the nominal carbon content and averaged local tetragonality measured by EBSD is also obtained, although the averaged axial ratio is slightly below that obtained from more classical X-ray diffraction measurements.
