Liu Qiuxiang, Jiang Zhimei, Xie Shifang, et al. Microstructures Evolution of AZ91D Magnesium Alloys under High Pressure[J]. Special Casting & Nonferrous Alloys, 2018,38(9):942-945.
Liu Qiuxiang, Jiang Zhimei, Xie Shifang, et al. Microstructures Evolution of AZ91D Magnesium Alloys under High Pressure[J]. Special Casting & Nonferrous Alloys, 2018,38(9):942-945. DOI: 10.15980/j.tzzz.2018.09.004.
高压作用下AZ91D镁合金微观组织的演化
摘要
以AZ91D镁合金为研究对象
借助X射线衍射仪、金相电镜、场发射扫描电镜及透射电镜
研究了压力对AZ91D镁合金微观组织的影响。结果表明
高压时效处理后的AZ91D镁合金仍由α-Mg和β-Mg17Al12相组成
但高压时效处理可改变β-Mg17Al12相的形态及分布
并且明显细化AZ91D镁合金的晶粒组织。
Abstract
The effects of pressure on microstructures of AZ91 D magnesium alloys were investigated through X-ray diffraction(XRD)
optical microscope(OM)
field emission scanning electron microscope(FESEM)and transmission electron microscope(TEM).The results show that
AZ91 D magnesium alloys still consist ofα-Mg andβ-Mg17 Al12 phase after high pressure aging treatment.However
high pressure aging treatment can transform the morphology and distribution ofβ-Mg17 Al12 phase.Moreover
high pressure aging treatment can refine grain size significantly.