对埋藏在土壤中20年以上的碳钢腐蚀进行了分析,扫描电镜、能谱和金相分析结果表明,钢中夹杂物.焊缝区域易产生点蚀,土壤中存在硫酸根和氨离子也是产生点蚀的重要因素.
Corrosion behavior of carbon steel buried in soils after 20 years was studied by means of SEM,EDAX and metallographic techniques.The observations revealed that the inclu-sions in steel,welded joints and heat-treated region of the steel tube specimens resu
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