Effect of Homogenizing Annealing on the Resistance of Welded Joints of Steel 15Kh11MFB to Brittle Fracture


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Abstract

Results of studies of structural changes in welded joints of steel 15Kh11MFB after homogenizing followed by heat refining are analyzed. It is shown that homogenizing at 1150°C lowers substantially the content of δ-ferrite in the structure of the steel and raises its ductile and plastic characteristics by more than a factor of 2 without changing the strength properties.

About the authors

V. I. Gorynin

National Research Center “Kurchatov Institute” – Central Research Institute of Structural Materials “Prometey”

Author for correspondence.
Email: vigorynin@gmail.com
Russian Federation, St. Petersburg

M. I. Olenin

National Research Center “Kurchatov Institute” – Central Research Institute of Structural Materials “Prometey”

Email: vigorynin@gmail.com
Russian Federation, St. Petersburg

V. I. Stol’nyi

National Research Center “Kurchatov Institute” – Central Research Institute of Structural Materials “Prometey”

Email: vigorynin@gmail.com
Russian Federation, St. Petersburg

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