摘要
为了解硫化氢对金属材料造成的腐蚀和氢脆的影响,探索硫化氢的腐蚀机理,将45号钢在不同浓度H2S溶液、不同时间浸泡后,采用硬度试验的方法,对材料的硬度变化情况、腐蚀层厚度、渗透层厚度以及氢脆影响层厚度的变化情况进行了研究。结果表明,45号钢经受H2S腐蚀后的硬度会随着材料的层深而呈现先上升、后下降直至恢复到原始硬度的趋势;H2S溶液浸泡对中碳钢产生了腐蚀和氢脆两种影响,材料经48h浸泡后受到H2S氢脆效应的影响最显著,经96h浸泡后受到的腐蚀影响最显著。
In order to study the influence of hydrogen sulfide on corrosion and hydrogen emlarittlement and to explore the corrosion mechanism in hydrogen sulfide environments, 45% steel was immersed in solutions containing different concentrations of HzS for various hours. The changes of the hardness, the thickness of the corroded layer, the thickness of the permeation layer and the thickness of the Iayer affected by hydrogen embrittlement were studied. The results show that the hardness of the specimen first increased and then decreased until it was restored to the original hardness after the material subjected to the corrosion of hydrogen sulfide. Solution containing Hz S can induce two effects of corrosion and hydrogen embrittlement. It was found that the effect of the Hz S hydrogen embrittlement was the most significant after 48 h immersion, and the effect of the corrosion was the most significant after 96 h immersion.
出处
《腐蚀与防护》
CAS
北大核心
2013年第11期1013-1018,共6页
Corrosion & Protection
关键词
H2S溶液
腐蚀
氢脆
硬度
He S solution
corrosion
hydrogen embrittlement
hardness
