IOP Conference Series: Earth and Environmental Science

The authors investigated the main regularities in the structural and mechanical degradation of steel and a welded joint of the "Soyuz" gas main in operation. It is established that the defect accumulation kinetics in welds are determined both by technological disruptions in their manufactu...

Full description

Bibliographic Details
Other Authors: Maruschak, Bishchak, Panin specialist in the field of material science Professor of Tomsk Polytechnic University, Doctor of technical sciences
Format: Book Chapter
Language:English
Published: 2018
Subjects:
Online Access:http://dx.doi.org/10.1088/1755-1315/115/1/012046
http://earchive.tpu.ru/handle/11683/47020
Description
Summary:The authors investigated the main regularities in the structural and mechanical degradation of steel and a welded joint of the "Soyuz" gas main in operation. It is established that the defect accumulation kinetics in welds are determined both by technological disruptions in their manufacture and by hydrogenation of the weld during a long operating time. A weakening of the mechanical properties of the weld after a prolonged operation is shown, which in some cases led to the appearance of cracks and fracture of the gas main.
Item Description:Title screen
Bibliography:[References: 14 tit.]