Authors: XiuLi Hou YiXuan Zhai Peng Zhang Shun Guo ZhiZhong Yuan QingFeng Guan
Publish Date: 2016/09/08
Volume: 35, Issue: 11, Pages: 850-857
Abstract
The microstructures and textures of four rectangular extruded Mg alloys Mg–3Gd Mg–3Nd Mg–1Gd–1Nd and Mg–15Gd–15Nd all in wt were investigated by using optical microscopy OM Xray diffraction XRD and electron backscatter diffraction EBSD The results demonstrate that the extruded alloys all reveal fully recrystallized microstructure and weak nonbasal texture For textures of the four extruded alloys it is shown that the basal planes of majority grains tilt away from the sheet plane normal toward the extrusion direction Compared with two binary alloys the ternary alloys possess weaker texture strengths Through orientation distribution function analysis two types of rare earth textures 01bar13 0bar223 and bar12bar15 1bar213 were found in the extruded alloys Texture component bar12bar15 1bar213 is relatively weak but it plays a critical role in the low texture intensities of two ternary alloys A pairing effect of Gd and Nd elements has an influence on the texture modification Additionally there is a difference in the sensitivities of experimental parameters between the microstructure and texture
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