Five-Parameter Grain Boundary Determination in Annealed Ferrite Structure Using Electron Backscatter Diffraction and Serial Sectioning Technique

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• 作者：Manmath Kumar Dash ; T. Karthikeyan…
• 关键词：EBSD ; Grain boundaries ; Serial sectioning ; Ferritic steel ; Grain boundary plane
• 刊名：Transactions of the Indian Institute of Metals
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：70
• 期：1
• 页码：133-143
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Metallic Materials; Materials Science, general; Tribology, Corrosion and Coatings;
• 出版者：Springer India
• ISSN：0975-1645
• 卷排序：70

文摘

The SEM/electron back scattered diffraction and serial sectioning procedure have been used to study the five parameter description of grain boundaries in a polygonal ferrite microstructure of 9Cr-1Mo steel. A routine has been evolved to correlate the successive images of a selected region and determine the grain boundary plane morphology. The relative misorientation of the crystallites, in terms of misorientation angle-axis (ω,ȓ), the grain boundary inclination angles [azimuth (γ) and polar (β) angles], and the crystallographic description of the two meeting planes have been studied and compared with random distribution. The low-angle boundaries are found to be persistently present in higher amounts after the grain growth induced by extended annealing.