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Mechanical Properties of Gas Main Steels after Long-Term Operation and Peculiarities of Their Fracture Surface Morphology

التفاصيل البيبلوغرافية
العنوان: Mechanical Properties of Gas Main Steels after Long-Term Operation and Peculiarities of Their Fracture Surface Morphology
المؤلفون: Volodymyr Hutsaylyuk, Pavlo Maruschak, Ihor Konovalenko, Sergey Panin, Roman Bishchak, Mykola Chausov
المصدر: Materials, Vol 12, Iss 3, p 491 (2019)
بيانات النشر: MDPI AG, 2019.
سنة النشر: 2019
المجموعة: LCC:Technology
LCC:Electrical engineering. Electronics. Nuclear engineering
LCC:Engineering (General). Civil engineering (General)
LCC:Microscopy
LCC:Descriptive and experimental mechanics
مصطلحات موضوعية: gas mains steel, failure, static cracking resistance, long-term operation, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85
الوصف: Regularities of steel structure degradation of the “Novopskov-Aksay-Mozdok„ gas main pipelines (Nevinnomysskaya CS) as well as the “Gorky-Center„ pipelines (Gavrilovskaya CS) were studied. The revealed peculiarities of their degradation after long-term operation are suggested to be treated as a particular case of the damage accumulation classification (scheme) proposed by prof. H.M. Nykyforchyn. It is shown that the fracture surface consists of sections of ductile separation and localized zones of micro-spalling. The presence of the latter testifies to the hydrogen-induced embrittlement effect. However, the steels under investigation possess sufficiently high levels of the mechanical properties required for their further safe exploitation, both in terms of durability and cracking resistance.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1996-1944
Relation: https://www.mdpi.com/1996-1944/12/3/491; https://doaj.org/toc/1996-1944
DOI: 10.3390/ma12030491
URL الوصول: https://doaj.org/article/86439342014849b2a1d8e8bea825a2cb
رقم الأكسشن: edsdoj.86439342014849b2a1d8e8bea825a2cb
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19961944
DOI:10.3390/ma12030491