徐春杰,张金皛,田军,冯港雯,张忠明

• 1:西安理工大学材料科学与工程学院
• 2:金堆城钼业集团有限公司

摘要(Abstract)：

在430℃大气条件下对纯镁表面进行扩渗锌处理,研究了扩渗时间对渗层厚度与组织性能的影响。结果表明,在纯镁表面可以形成均匀平滑扩渗锌层,渗锌层由Zn、α-Mg和金属间化合物Mg7Zn3、Mg0.97Zn0.03组成。渗层厚度随扩渗时间延长而增加,表面硬度随之提高,其中扩渗16 h硬度最高,达到168 HV0.01,这与渗层中的金属间化合物含量提高有关。同时,扩渗8~16 h的渗层在3.5%Na Cl溶液中耐腐蚀性能较好,渗层可以保护纯镁基体。

关键词(KeyWords)： 扩渗时间;热扩渗锌层;显微硬度;极化曲线;耐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 陕西省国际科技合作重点项目计划(2013KW16);; 陕西省教育厅科研计划项目(2013JK0914);; 西安理工大学科学研究计划项目(2013CX004)

作者(Author): 徐春杰,张金皛,田军,冯港雯,张忠明

DOI: 10.13289/j.issn.1009-6264.2015.07.034

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