, Volume 48, Issue 2, pp 239-246

Influence of the long-term operation of 12Kh1M1F steel from different zones of a bend of steam pipeline of a thermal power plant on its mechanical characteristics

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We estimate the characteristics of strength, ductility, and static crack resistance of 12Kh1MF steel taken from the stretched, compressed, and neutral zones of a vertical bend and a straight part of the main steam pipeline of a thermal power plant after ~ 1.3 ⋅105 h of operation. The anisotropy of the mechanical char acteristics in the diametric and axial sections of the pipe and their gradients across the thickness of the pipe wall in fracture are discovered.

Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 48, No. 2, pp. 111–118, March–April, 2012.