A quasi-in-situ EBSD observation of the transformation from rolling texture to recrystallization texture in V-4Cr-4Ti alloy

• Published in: Materials characterization Vol. 126; pp. 35 - 41
• Main Authors: Peng, Lixia, Li, Xiongwei, Fan, Zhijian, Jiang, Chunli, Zhou, Ping, Lai, Xinchun
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.04.2017
• Subjects: BACKSCATTERING; CHROMIUM ALLOYS; DIFFRACTION METHODS; DISSOLUTION; DISTRIBUTION; DRAG; Electron back-scattering diffraction (EBSD); ELECTRON DIFFRACTION; MATERIALS SCIENCE; PRECIPITATION; RECRYSTALLIZATION; ROLLING; SCANNING ELECTRON MICROSCOPY; TEXTURE; TITANIUM ALLOYS; V-4Cr-4Ti alloy; VANADIUM ALLOYS; Rolling; V-4Cr-4Ti alloy; Electron back-scattering diffraction (EBSD); Texture; Recrystallization
• ISSN: 1044-5803; 1873-4189
• DOI: 10.1016/j.matchar.2017.01.037

Recrystallization texture evolution of rolled V-4Cr-4Ti alloy has been investigated by quasi-in-situ EBSD (electron back-scattering diffraction) method. Concurrently, the precipitates were characterized by SEM (Scanning Electron Microscopy). It was found that both the initial rolling textures and the distribution of the precipitates affected the formation of the recrystallization texture. It was revealed that the texture transformations of {558} 〈110〉+{665} 〈110〉 to {334} 〈483〉+{665} 〈1 1 2.4〉 were possibly attributed to the selective drag induced by the sparsely dispersed Ti-rich precipitates. While the densely distributed Ti-rich precipitates were responsible for the randomized recrystallization texture. Finally, when the precipitates were absent, the orientation changes from {112} 〈110〉 and {558} 〈110〉 to {111} 〈112〉 and {001} 〈110〉 to {001} 〈520〉 were observed. •Micro recrystallization texture evolution in V-4Cr-4Ti alloys is reported for the first time.•The volume fraction of Ti-rich precipitates has significant effect on the recrystallization texture evolution.•The dissolution of the Ti-rich precipitates above 1100°C induces the strengthening of {111} 〈112〉 texture.