A method for estimating the metal residual life of the weld pipes of gas main pipelines

2011 ◽  
Vol 47 (7) ◽  
pp. 431-437
Author(s):  
N. L. Zaitsev ◽  
V. A. Popov ◽  
I. V. Blinov ◽  
A. I. Istomin ◽  
G. S. Korzunin
Keyword(s):  
Residual Life ◽  
Gas Main ◽  
Main Pipelines

Development of the method for assessment of serviceability and residual life of the main pipelines with service macrodelamination

2020 ◽  
Vol 2020 (4) ◽  
pp. 3-7
Author(s):  
O.T. Tsiryulnik ◽  
◽  
N.V. Kret ◽  
O.I. Zvirko ◽  
G.M. Nikiforchin ◽  
...  
Keyword(s):  
Residual Life ◽  
Main Pipelines

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

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 491 ◽  
Author(s):  
Volodymyr Hutsaylyuk ◽  
Pavlo Maruschak ◽  
Ihor Konovalenko ◽  
Sergey Panin ◽  
Roman Bishchak ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fracture Surface ◽  
Damage Accumulation ◽  
Classification Scheme ◽  
Steel Structure ◽  
Term Operation ◽  
Gas Main ◽  
Structure Degradation ◽  
Main Pipelines

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.

Electrometric diagnostics of corrosion protection for linear sections of gas main pipelines

2011 ◽  
Vol 47 (4) ◽  
pp. 236-246 ◽  
Author(s):  
V. A. Popov ◽  
G. S. Korzunin ◽  
V. A. Zhelobetskii ◽  
A. V. Popov
Keyword(s):  
Corrosion Protection ◽  
Gas Main ◽  
Main Pipelines ◽  
Linear Sections

scholarly journals Corrosion-mechanical behavior of gas main steel in saline soils

2019 ◽  
Vol 63 (3) ◽  
pp. 105-112
Author(s):  
L. Poberezhny ◽  
A. Stanetsky ◽  
G. Grytsuliak ◽  
L. Poberezhna ◽  
M. Kosmii ◽  
...  
Keyword(s):  
Residual Life ◽  
Pipeline Steel ◽  
Mechanical Tests ◽  
Chloride Ions ◽  
Operating Costs ◽  
Saline Soils ◽  
Active Components ◽  
Gas Main ◽  
The Impact ◽  
Kinetics Of

Abstract The study of the deformation behavior of the pipeline material in conditions of loads and influences simulating the operation allows better estimation of the residual life of the pipelines and more accurate forecasting of the operating costs. The kinetics of deformation in 6 model environments simulating soil electrolytes was studied. Corrosion-mechanical tests were performed and the impact of the soil electrolyte chemical composition and the applied mechanical stresses on the corrosion behavior of the pipeline steel was studied. Significant increase in the corrosion activity of the soil electrolyte due to the synergistic effect of the corrosion-active components was found in the specified ratios of the ionic molar concentrations of sulphate and chloride ions (0.05 M: 0.1 M).

A spectroradiometer for remote ecological testing of gas main pipelines

2010 ◽  
Vol 46 (8) ◽  
pp. 598-602 ◽  
Author(s):  
R. S. Asatryan ◽  
S. R. Asatryan ◽  
L. A. Sukoyan ◽  
N. R. Khachatryan
Keyword(s):  
Gas Main ◽  
Main Pipelines

Possible Reasons for Selectivity of Corrosive Tube Cracking in Underground Gas-Main Pipelines

2005 ◽  
Vol 41 (6) ◽  
pp. 403-407 ◽  
Author(s):  
Yu. P. Surkov ◽  
V. A. Gorchakov ◽  
V. G. Rybalko ◽  
A. Yu. Surkov
Keyword(s):  
Gas Main ◽  
Main Pipelines

Degradation of steels used in gas main pipelines during their 40-year operation

2009 ◽  
Vol 41 (5) ◽  
pp. 501-505 ◽  
Author(s):  
H. M. Nykyforchyn ◽  
O. T. Tsyrul’nyk ◽  
D. Yu. Petryna ◽  
M. I. Hredil’
Keyword(s):  
Gas Main ◽  
Main Pipelines
Sign in / Sign up

Export Citation Format

Share Document