金属工具腐蚀性能随时间变化规律的研究

Research on Change Law between Metal Tool Corrosion Performance and Time

杨飞宇，柳晓光，张成功，田巍，严岩，刘文斌

上海市现场物证重点实验室上海市刑事科学技术研究院；上海市公安局普陀分局刑科所

摘　要: 为了探索金属工具腐蚀特征与时间的关系,本研究选取了常见的金属撬棒为研究对象,将其置于上海土壤环境中进行腐蚀试验和腐蚀表征,利用数码相机、扫描电镜(SEM)以及X射线衍射仪(XRD)来观察其腐蚀过程中形貌的变化,分析腐蚀产物的成分,并通过失重法来计算表征平均腐蚀深度与时间的关系。研究表征金属在土壤环境中表面腐蚀形貌随时间变化的规律,计算出了平均腐蚀深度与时间变化的关系。这一结果可以作为在未知时间的条件下,推断相同土壤环境中同种金属工具腐蚀时间范围的数据基础。
关键词: 金属工具；土壤环境；腐蚀特性；时间
基金项目: 上海市公安局科学技术发展基金项资助,项目编号:2014011
分类号: TG172
栏　目: 试验研究
出　处: 《冶金与材料》2015年第4期，第 5-7+11 页（共 4 页）
出版日期: 2015-08-15
知网数据: 下载 62 次（截至 2026-09-29）

Abstract: In order to explore the change law between the metal tool corrosion characteristics and the time,this study selected the common metal lever as the research object,which were placed into the soil environment in Shanghai for corrosion test. The corrosion morphology change and the composition of corrosion products were evaluated by the digital camera,the scanning electron microscope( SEM)and the X- ray diffraction( XRD). The relationship between the corrosion depth and time was obtained by the weight loss method. The characterization of the metal performance in the soil environment over time were shown and the relationship between the average corrosion depth and the time was calculated. The results can be used as the data base to deduce the unknown corrosion time range when the same type metal tool were placed in the same soil environmental condition.
Keywords: metal tool; soil environment; corrosion characteristics; time

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