AZ31镁合金表面纳米陶瓷涂层的组织与力学性能分析

被引:4
作者
高正源 [1 ,2 ]
潘复生 [1 ,2 ]
机构
[1] 重庆大学国家镁合金材料工程技术研究中心
[2] 重庆大学材料科学与工程学院
关键词
镁合金; 磁控溅射; 纳米陶瓷涂层; 硬度;
D O I
暂无
中图分类号
TG174.4 [金属表面防护技术];
学科分类号
摘要
为改善镁合金表面的耐磨性能,采用磁控溅射工艺在AZ31镁合金表面制备了纳米Al203陶瓷涂层。用XRD、SEM-EDS等分析了涂层的结构和形貌,用正交试验讨论了温度、功率、时间对涂层表面硬度的影响规律。结果表明,影响纳米Al2O3膜硬度和耐磨性的因素是溅射功率和溅射时间,最佳的工艺为80℃,200W,3h。采用本工艺技术,材料表面主要为2~10um厚、30nm左右的粒状δ-Al2O3致密层,表层硬度从基体767MPa提高为1 360MPa,提高了77.31%。
引用
收藏
页码:67 / 71
页数:5
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