Grain orientation mapping in gradient nanostructured metals produced by surface plastic deformation

X. Huang, M. Zhu, Z. Q. Feng, Q. Y. He, G. L. Wu, S. Schmidt

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Surface gradient nanostructured metals characterized by grain size and grain orientation variations from the surface to the interior can be produced by surface plastic deformation. Grain orientation mapping allows a quantitative characterization of both the microstructural and textural gradients that determine the properties and performance of such surface deformed metals. Two-dimensional (2D) orientation mapping techniques in a scanning electron microscope and a transmission electron microscope are typically used to generate grain orientation maps in surface gradient nanostructured metals. In this paper, examples of such grain orientation maps are given to show the advantages and limitations of 2D grain orientation mapping. The challenges associated with the indexing of superimposed electron diffraction patterns are discussed in particular, leading to the conclusion that solving this problem can ultimately only be achieved by 3D orientation mapping.
Original languageEnglish
Title of host publicationAdvanced Metallic Materials by Microstructural Design
EditorsS. Dhar, S. Fffister, A. Godfrey, N. Hansen, C. Hong, X. Huang, D. Juul Jensen, O. V. Mishin, T. Yu, Y. Zhang
PublisherTechnical University of Denmark
Publication date2017
Publication statusPublished - 2017
Event38th Risø International Symposium on Materials Science - Technical University of Denmark , Roskilde, Denmark
Duration: 4 Sep 20178 Sep 2017


Conference38th Risø International Symposium on Materials Science
LocationTechnical University of Denmark


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