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Low temperature impact toughness of the main gas pipeline steel after long-term degradation

Open Engineering 2014 28 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 30 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Pavlo Maruschak, Iryna Danyliuk, Р. Т. Бищак, Tomaž Vuherer

Summary

This engineering study examined how long-term in-service degradation affects the low-temperature fracture toughness of gas pipeline steel, finding correlations between microstructure changes and reduced impact resistance over time. This is an industrial materials science study with no relevance to microplastic pollution.

Abstract The correlation of microstructure, temperature and Charpy V-notch impact properties of a steel 17G1S pipeline steel was investigated in this study. Within the concept of physical mesomechanics, the dynamic failure of specimens is represented as a successive process of the loss of shear stability, which takes place at different structural/scale levels of the material. Characteristic stages are analyzed for various modes of failure, moreover, typical levels of loading and oscillation periods, etc. are determined. Relations between low temperature derived through this test, microstructures and Charpy (V-notch) toughness test results are also discussed in this paper.

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