고온 평면변형 압축에서 AZ91 마그네슘 합금의 미세조직 및 집합조직 형성 거동에 관한 고찰

Abstract

To examine the influence of deformation conditions on the microstructure and texture evolution of AZ91 magnesium alloy with three different initial textures, plane strain compression tests were conducted under high-temperature conditions (673K–723K), with a strain rate of 5 × 10⁻³ s⁻¹, up to a true strain of -1.0. To analyze the resulting texture evolution and crystal orientation distribution, X-ray diffraction and EBSD analyses were performed on the mid-plane section of each specimen after electrolytic polishing. The results indicated that both the primary texture components and pole density distribution varied based on initial texture and deformation conditions. Especially, the formation and intensification of basal texture components (〈〉) were observed across all specimens, regardless of the initial texture.