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| X80钢在不同土壤模拟溶液中的腐蚀行为 | |
| 引用本文： | 王莹,俞宏英,程远,单海涛,孙冬柏. X80钢在不同土壤模拟溶液中的腐蚀行为[J]. 材料工程, 2012, 1(1): 25-28,33. DOI: 10.3969/j.issn.1001-4381.2012.01.006 |
| 作者姓名： | 王莹 俞宏英 程远 单海涛 孙冬柏 |
| 作者单位： | 1.北京科技大学国家材料服役安全科学中心,北京100083;北京科技大学腐蚀与防护中心,北京100083;2.北京科技大学腐蚀与防护中心,北京,100083 |
| 基金项目： | 中国石油天然气股份有限公司科学研究与技术开发项目 |
| 摘 要： | 采用失重法、扫描电镜(SEM)、能谱分析(EDS)及X射线衍射(XRD)等方法研究了X80钢在3种土壤模拟溶液中的腐蚀行为.结果表明:X80钢在鄯善和新洲模拟溶液中以均匀腐蚀为主；而其在樟树模拟溶液中以点蚀为主.X80钢在3种不同模拟溶液中的腐蚀速率满足:樟树＞新洲＞都善.在鄯善模拟溶液中,结晶盐CaSO4·2H2O随浸泡时间的增加不断析出并沉积在腐蚀产物层表面,一定程度上抑制了Clˉ和溶解O对X80钢的侵蚀作用,减缓了X80钢的均匀腐蚀速率.在樟树模拟溶液中,X80钢表面难以形成保护性产物层,腐蚀随时间不断加剧,最终促进点蚀的发生. |
| 关 键 词： | X钢 土壤模拟溶液 腐蚀行为 |
Corrosion Behavior of X80 Steel in Different Simulated Soil Solution |
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| WANG Ying , YU Hong-ying , CHENG Yuan , SHAN Hai-tao , SUN Dong-bai. Corrosion Behavior of X80 Steel in Different Simulated Soil Solution[J]. Journal of Materials Engineering, 2012, 1(1): 25-28,33. DOI: 10.3969/j.issn.1001-4381.2012.01.006 | |
| Authors: | WANG Ying YU Hong-ying CHENG Yuan SHAN Hai-tao SUN Dong-bai |
| Affiliation: | 1,2(1 National Center for Materials Service Safety,University of Science and Technology Beijing,Beijing 100083,China;2 Corrosion and Protection Center, University of Science and Technology Beijing,Beijing 100083,China) |
| Abstract: | The corrosion behavior of X80 steel in three kinds of simulated soil solution,was investigated by methods of mass loss measurement,scanning electron microscopy(SEM),energy dispersive spectrometer(EDS) and X-ray diffraction(XRD).The results show that X80 steel is uniform corrosion in simulated solution of Shanshan and Xinzhou soil,and pitting corrosion occurs on X80 steel in simulated solution of Zhangshu soil.The ranking of the corrosion rate of X80 steel in different simulated solution is Zhangshu,Xinzhou and Shanshan.The salt-crystallization of CaSO4·2H2O,which could inhibit the erosion effects of Cl-and dissolved oxygen on X80 steel,continuously deposit on the surface of corrosion products in Shanshan simulated solution,and slow down the uniform corrosion rate as well.However,the corrosion product layer that could not provide effective corrosion protection for X80 steel in Zhangshu simulated solution,makes the corrosion of X80 steel become more serious with the increasing of immersion time,and finally results in pitting corrosion of X80 steel. |
| Keywords: | X80 steel simulated soil solution corrosion behavior |
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