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Three‐Dimensional Morphological and Crystallographic Investigation of Lamellar Alpha and Retained Beta in a Near Alpha Titanium Alloy by Combination of Focused Ion Beam and Electron Backscattering Diffraction
Author(s) -
He Dong,
Zaefferer Stefan,
Zhu Jingchuan,
Lai Zhonghong
Publication year - 2012
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201200013
Subject(s) - lamellar structure , electron backscatter diffraction , materials science , crystallography , alloy , diffraction , titanium alloy , morphology (biology) , titanium , orientation (vector space) , electron diffraction , microstructure , optics , composite material , metallurgy , geometry , chemistry , physics , biology , mathematics , genetics
Abstract We studied the three‐dimensional (3D) morphology and crystal orientation distribution of coarse primary α, fine second α lamellae, and retained β layers in a near α titanium alloy using a 3D microtomographic electron backscattering diffraction method (3D EBSD). The results demonstrate that primary α lamellae are more like a thick plate in 3D space. The second α lamellae have lower in‐grain (mis)orientation gradients than primary α. The retained β is a continuous network structure and contains many cavities for α lamellae embedding.