English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The information on the technical diagnostics problems for pipeline systems is given; the analysis of these problems is made. The ways of their solution are considered using non-destructive testing methods and technical means. According to the results of technical diagnostics, stress-corrosion cracks of natural (operational) wear, which arose in a section of a steel pipe cut from a gas pipeline, were investigated. Some parameters characterizing the distribution of stress-corrosion cracks on the metal surface of a steel pipe are given. The statistical dependences for the lengths of stress-corrosion cracks are obtained: 46% of cracks have a length of less than 1 mm, 50.7% of cracks have a length l from 1 mm to 6 mm, and less than 3% of cracks have a length from 6 mm to 26 mm. The statistical dependences for the distribution of intervals between adjacent stress-corrosion cracks in the metal were also obtained: more than 42% of cracks are located within an interval not exceeding 1 mm, more than 52% of cracks are located within an interval varying from 1 to 3 mm and about 5% of cracks are located within an interval varying from 3 to 5 mm and more.

The Statistic Analyze of Stress-Corrosion Cracks on the Main Gas Pipeline Section