Hutsaylyuk Volodymyr, Maruschak Pavlo, Konovalenko Ihor, Panin Sergey, Bishchak Roman, Chausov Mykola
Department of Machine Design, Military University of Technology, Gen. S. Kaliskiego str. 2, 00-908 Warsaw, Poland.
Department of Industrial Automation, Ternopil National Ivan Pul'uj Technical University, Rus'ka str. 56, 46001 Ternopil, Ukraine.
Materials (Basel). 2019 Feb 5;12(3):491. doi: 10.3390/ma12030491.
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.
研究了“新普斯科夫－阿克赛－莫兹多克”天然气主干管道（涅温诺梅斯克压缩机站）以及“高尔基－中心”管道（加夫里洛夫斯卡亚压缩机站）钢结构的降解规律。长期运行后所揭示的这些管道降解特性，被认为是H.M. 尼基福申教授提出的损伤累积分类（方案）的一个特殊情况。结果表明，断口表面由韧性分离区和微剥落局部区域组成。微剥落区域的存在证明了氢致脆化效应。然而，就耐久性和抗裂性而言，所研究的钢材具备足够高的机械性能水平，能够确保其进一步安全使用。
