EBSD Investigation of the Microtexture of Weld Metal and Base Metal in Laser Welded Al⁻Li Alloys.

ABSTRACT: Autogenous laser welding of 5A90 Al⁻Li alloy sheets in a butt-joint configuration was carried out in this study. The microstructure characteristics of the weld metal and base metal in the horizontal surface and the transverse section of the welded joints were examined quantitatively using electron back scattered diffraction (EBSD) technique. The results show that the weld metal in the horizontal surface and the transverse section exhibits similar grain structural features including the grain orientations, grain shapes, and grain sizes, whereas distinct differences in the texture intensity and misorientation distributions are observed. However, the base metal in the horizontal surface and the transverse section of the joints reveals the obvious different texture characteristics in terms of

SUBMITTER: Cui L 

PROVIDER: S-EPMC6316995 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature