Crack Resistance of Welded Joints of Pipe Steels of Strength Class K60 of Different Alloying Systems


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The crack resistance of welded joints of pipe steels of strength class K60 and different alloying systems is studied. The parameter of the crack tip opening displacement (CTOD) is shown to be dependent on the size of the austenite grains and on the morphology of bainite in the superheated region of the heat-affected zone of the weld. The crack resistance is shown to be controllable due to optimization of the alloying system.

Sobre autores

T. Tabatchikova

M. N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences

Autor responsável pela correspondência
Email: labmet@imp.uran.ru
Rússia, Ekaterinburg

N. Tereshchenko

M. N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences

Email: amakoveckiy@chtpz.ru
Rússia, Ekaterinburg

I. Yakovleva

M. N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences

Email: amakoveckiy@chtpz.ru
Rússia, Ekaterinburg

A. Makovetskii

Chelyabinsk Pipe-Rolling Plant, JSC

Autor responsável pela correspondência
Email: amakoveckiy@chtpz.ru
Rússia, Chelyabinsk

S. Shander

Chelyabinsk Pipe-Rolling Plant, JSC

Email: amakoveckiy@chtpz.ru
Rússia, Chelyabinsk

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