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极潮湿环境中管道腐蚀防护研究
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作者 杨兴乾 赵少勇 +6 位作者 邹波 张威 祖运鹤 谢凡 汪洋 田丰 占稳 《材料保护》 CAS CSCD 2022年第12期70-78,共9页
针对华南某水电厂输水管线因运行环境极为潮湿、表面涂层剥落的情况,采用外加电流阴极保护和涂层联合使用的模拟试验装置,探究阴极保护和涂层联合作用下,碳钢管道的腐蚀机理及不同大小外加电流对管道腐蚀的影响。结果表明:腐蚀初期,施... 针对华南某水电厂输水管线因运行环境极为潮湿、表面涂层剥落的情况,采用外加电流阴极保护和涂层联合使用的模拟试验装置,探究阴极保护和涂层联合作用下,碳钢管道的腐蚀机理及不同大小外加电流对管道腐蚀的影响。结果表明:腐蚀初期,施加在样品上的阴极保护电位越负,样品腐蚀速率越低,但随着腐蚀时间的延长,在腐蚀60 d后,处在正常阴极保护电位(-1.20 V≤E≤-0.85 V)(vs SCE,下同)的样品腐蚀速率最低,且过负的阴极保护电位(≤-1.20 V)会造成样品表面涂层的阴极剥离;在正常(-1.20 V≤E≤-0.85 V)和过保护(≤-1.20 V)的阴极保护电位下,样品腐蚀产物较为致密平整,而未施加阴极保护和欠保护阴极保护电位(≥-0.85 V)下,样品腐蚀产物呈细小疏松的颗粒状。 展开更多
关键词 保护 电位 腐蚀 涂层 碳钢 极潮湿
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Extreme Adaptation to Extreme Environments in Hot Dry, Hot Sub-humid and Hot Humid Climates in Mexico
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作者 Luis Gabriel Gomez-Azpeitia Gonzalo Bojorquez-Morales +3 位作者 Raul Pavel Ruiz Irene Marincic Eduardo Gonzalez Adalberto Tejeda 《Journal of Civil Engineering and Architecture》 2014年第8期929-942,共14页
The paper discusses the results of a field study carried out in four cities in Mexico: Hermosillo, Mexicali, Merida and Colima, during the warmest seasons of 2006-2007. The survey is according to the adaptive approac... The paper discusses the results of a field study carried out in four cities in Mexico: Hermosillo, Mexicali, Merida and Colima, during the warmest seasons of 2006-2007. The survey is according to the adaptive approach of thermal comfort. The cities' climates are hot dry, hot sub-humid and hot humid. The respondents were inhabitants of low cost housings without air conditioning. The research was performed during warm seasons and according to ISO 10551. The measurements were processed by the common method of linear regression and also by alternative methods, useful for asymmetric climates. Individuals declared comfort at very high temperatures, either high or low humidity, therefore, the resulting neutral temperatures are higher than 30 ℃, except in Colima (28.8 ℃). The upper limits of comfort ranges achieved temperatures up to 35 ℃. The results suggest how great is the capacity of humans to adapt to conditions as extreme as those measured in the study. 展开更多
关键词 ACCLIMATION thermal comfort adaptive approach field studies
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