摘要
为系统研究温湿度对馆藏铁质文物大气腐蚀行为的影响,在13组温湿度环境中进行加速腐蚀试验,通过腐蚀增重法、宏观及微观形貌观察、X射线光电子能谱(XPS)等研究了铁质文物的腐蚀行为,并利用防护能力指数对锈层的保护作用进行定量表征。结果表明:当相对湿度超过60%时,铁质文物的腐蚀速率会大幅增加,进而破坏锈层的保护作用;在一定的湿度下,高温对锈层保护作用的削弱更明显,温度升高会促进腐蚀产物间的物相转化,加速腐蚀反应。综合各项分析结果可知,温度20℃、相对湿度(RH)30%是保存铁质文物的理想环境,而在成本控制的前提下,相对湿度保持在45%即可大幅减缓铁质文物的腐蚀速率。
To systematically investigate the effects of temperature and humidity on the atmospheric corrosion of archaeological iron in museums,accelerated corrosion experiments were carried out under 13 distinct environmental conditions with different temperatures and humidity.The corrosion behavior of archaeological iron in museum atmospheric environment was characterized by mass gain measurement,macroscopic and microscopic observation and X-ray photoelectron spectroscopy(XPS).The protective capability of the corrosion layers was quantitatively characterized using the protective ability index.The results show that when the relative humidity exceeded 60%,the corrosion rate of archaeological iron increased dramatically,thereby damaging the protective effect of the corrosion layer.At a certain humidity,the increase of temperature significantly weakened the protective effect of the corrosion layer,and promoted phase transformations among corrosion products and accelerated corrosion reactions.Based on all the analysis results,it could be concluded that a temperature of 20℃and a relative humidity(RH)of 30%were ideal conditions for preserving archaeological iron.Under cost constraints,maintaining relative humidity at 45%could significantly reduce the corrosion rate of archaeological iron.
作者
梁一凡
刘朵
王雅正
孙键
王全玉
LIANG Yifan;LIU Duo;WANG Yazheng;SUN Jian;WANG Quanyu(Joint International Research Laboratory of Environmental and Social Archaeology,Shandong University,Qingdao 266237,China;National Centre for Archaeology,Beijing 100013,China)
出处
《腐蚀与防护》
北大核心
2025年第10期43-54,共12页
Corrosion & Protection
基金
国家重点研发计划(2020YFC1522102)。
关键词
铁质文物
大气腐蚀
加速腐蚀试验
温湿度
archaeological iron
atmospheric corrosion
accelerated corrosion experiment
temperature and humidity
