王武孝,刘雪雍,王娜,刘健,秦少勇

• 1:西安理工大学材料科学与工程学院

摘要(Abstract)：

采用光学显微镜(OM)、X射线衍射分析(XRD)、极化曲线测试等研究了超声处理功率(0、600、650、700、750 W)对Mg-9Al-Zn-0.6Ce-1.2Ca合金组织与耐蚀性能的影响。结果表明:随超声处理功率逐渐增大,Mg-9Al-Zn-0.6Ce-1.2Ca合金中α-Mg相平均晶粒尺寸先增大后减小,β-Mg_(17)Al_(12)相体积分数减少,并从连续网状变为半网状、散点状,合金耐蚀性随超声处理功率增大先增大后减小;经650 W超声处理后,合金中α-Mg相平均晶粒尺寸降至最低,相比于未进行超声处理的合金,降低了52.7%,β-Mg_(17)Al_(12)相呈半网状、散点状,此时合金的耐腐蚀性能最佳。

关键词(KeyWords)： 镁合金;细化晶粒;耐蚀性;超声处理

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51771146)

作者(Author): 王武孝,刘雪雍,王娜,刘健,秦少勇

DOI: 10.13289/j.issn.1009-6264.2018-0373

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