Tensile Fracture of the Welded Joints of Austenitic High-Nitrogen 05Kh22AG16N8M Steel with Various Nitrogen Contents

Tensile Fracture of the Welded Joints of Austenitic High-Nitrogen 05Kh22AG16N8M Steel with Various Nitrogen Contents

The сrack growth characteristics are investigated in situ in a scanning electron microscope column during the tension of the welded joints of two-phase (γ + δ) and single-phase (γ) 05Kh22AG16N8M steel containing 0.36 and 0.52 wt % N, respectively. A crack in the steel with 0.36% N and its welded joi...

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Veröffentlicht in:Russian metallurgy Metally 2021-10, Vol.2021 (10), p.1299-1303
Hauptverfasser: Blinov, V. M., Lukin, E. I., Blinov, E. V., Samoilova, M. A.
Format: Artikel
Sprache:eng
Schlagworte:
Applied Problems of Strength and Plasticity
Austenitic stainless steels
Chemistry and Materials Science
Delta ferrite
Electron microscopes
Materials Science
Metallic Materials
Nitrogen
Sigma phase
Steel structures
Welded joints
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Zusammenfassung:The сrack growth characteristics are investigated in situ in a scanning electron microscope column during the tension of the welded joints of two-phase (γ + δ) and single-phase (γ) 05Kh22AG16N8M steel containing 0.36 and 0.52 wt % N, respectively. A crack in the steel with 0.36% N and its welded joint is shown to form and develop at a low load and strain due to the existence of the σ phase in the steel structure and δ ferrite in the welded joint.
ISSN:0036-0295
1555-6255
1531-8648
DOI:10.1134/S0036029521100074