Correlation of Structure and Fractographic Characteristics of High-Strength Pipe Steel Welded Joint Metal Failure Micro-Mechanism

Correlation of Structure and Fractographic Characteristics of High-Strength Pipe Steel Welded Joint Metal Failure Micro-Mechanism

The structure and microstructure of impact fracture specimens of the heat-affected zone (HAZ) of low carbon micro-alloyed high-strength pipe steel welded joints are investigated. Correlation of structure parameters and fractographic characteristics of the failure micro-mechanism channel is establish...

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Veröffentlicht in:Metallurgist (New York) 2018-11, Vol.62 (7-8), p.694-700
Hauptverfasser: Efimenko, L. A., Ramus’, A. A., Ponomarenko, D. V., Ramus’, R. O.
Format: Artikel
Sprache:eng
Schlagworte:
Alloy steels
Characterization and Evaluation of Materials
Chemistry and Materials Science
Ductile-brittle transition
Failure
Heat affected zone
High strength
Low carbon steels
Materials Science
Metallic Materials
Microalloying
Microcracks
Pipes
Welded joints
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Zusammenfassung:The structure and microstructure of impact fracture specimens of the heat-affected zone (HAZ) of low carbon micro-alloyed high-strength pipe steel welded joints are investigated. Correlation of structure parameters and fractographic characteristics of the failure micro-mechanism channel is established, providing information about elementary acts of failure, i.e., the dimensions of ductile and brittle microcracks.
ISSN:0026-0894
1573-8892
DOI:10.1007/s11015-018-0710-2