摘要
介绍了近二万平方公里内６０多个埋片试验点组成的Ａ３钢和１６Ｍｎ钢埋片的配对对比试验，随机对比试验和对比分析的结果，应用数理统计和模式识别等方法，证明了土壤埋设条件下，Ａ３钢和１６Ｍｎ钢的腐蚀失重、腐蚀产物、点蚀状况等腐蚀行为基本相同。得出了一个包含４种土壤理化性质的数学模型，用来判别在何种土壤条件下，１６Ｍｎ钢可能会比Ａ３钢显示稍高的耐蚀性。
The coupled contrast tests and the random constast tests were conducted to find the corrosion behaviour difference between A3 steel and 16Mn steel in soil. The tests consisted of over 60 in situ buried test spots in a nearly 2×10 4 km 2 area. By means of mathematical statistics and pattern recognition mathods, a conclusion was drawn that the average corrosion rates, pitting rates and rust features of two kinds of steels were almost the smae. At a few test spots (less than 10% of total), the small differences were observed. In these scarce cases, 16Mn steel was always in preference to A3 steel in their anticorrosion properties, especially, in the soils with high content of chloride and heavy capability weight. Further, a mathematical model covering four soil parameters was established to judge in which type of soils 16Mn might have better anticorrosion properties than A3 steel.
出处
《腐蚀科学与防护技术》
CAS
CSCD
1996年第2期134-138,共5页
Corrosion Science and Protection Technology
关键词
土壤腐蚀
A3钢
16Mn
耐蚀性
soil corrosion, A3 steel, 16Mn steel, anti corrosion proterties, contrast tests
