Weldability of Non-Rotating Pipe Joints of a Main Gas Pipeline in Conditions of the North

被引：0

作者：

Ammosov, G. S. ^{[1
]}

Kornilova, Z. G. ^{[1
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Larionov Inst Phys Tech Problems North, 1 Oktyabrskaya St, Yakutsk 677891, Russia

来源：

MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS-2018) | 2018年 / 2053卷

关键词：

D O I：

10.1063/1.5084443

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The paper focuses on the destruction specifics of main gas pipelines (MG) on welded joints and their relation to the technology of construction welding of non-rotating joints of pipes at temperatures of down to -35 ... -50 degrees C in field environment. It is demonstrated that the metal of the heat-affected zone (HAZ) significantly softens under welding with specified values of q(h) (heat input), kJ/m, of the pipe joints of a gas pipeline in the conditions of the North. Herewith, in-service defects and cracks tend to appear in welded joints of pipes.

引用

页数：5

共 49 条

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