期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 456, 期 1-2, 页码 400-406出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2007.02.045
关键词
dynamic recrystallization; precipitation; texture; tensile properties; twinning
The microstructure, texture and tensile properties of AZ91 magnesium alloy that was extruded at 300 and 360 degrees C with extrusion ratios of 5.5 and 22 are investigated. The occurrence of dynamic recrystallization, precipitation of second phase (Mg17Al12) Particles and the formation of basal texture during extrusion are observed by electron back scattered diffraction patterns analyses. Along with the increase of either the extrusion temperature or extrusion ratio, the tensile strength decreases and the ductility increases. The precipitation of the second phase is beneficial to the grain refinement and in turn to the promotion of the tensile strength. The fracture analysis shows that the deformation twinning plays an important role in increasing the elongation. (c) 2007 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据