Temperature factors effect on occurrence of stress corrosion cracking of main gas pipeline

Innovations and Prospects of Development of Mining Machinery and Electrical Engineering

矿业工程;电工学

Nazarova, M.N.^1 ; Akhmetov, R.R.^1 ; Krainov, S.A.^1

Saint Petersburg Mining University, 2, 21 Line of Vasilevsky Island, Saint Petersburg

199106, Russia^1

关键词: Compressor stations;    Different grades;    Most likely;    Stress corrosion;    Temperature factor;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/87/6/062011/pdf
DOI  :  10.1088/1755-1315/87/6/062011

来源: IOP

【 摘 要 】

The purpose of the article is to analyze and compare the data in order to contribute to the formation of an objective opinion on the issue of the growth of stress corrosion defects of the main gas pipeline. According to available data, a histogram of the dependence of defects due to stress corrosion on the distance from the compressor station was constructed, and graphs of the dependence of the accident density due to stress corrosion in the winter and summer were also plotted. Data on activation energy were collected and analyzed in which occurrence of stress corrosion is most likely constructed, a plot of activation energy versus temperature is plotted, and the process of occurrence of stress corrosion by the example of two different grades of steels under the action of different temperatures was analyzed.