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

Authors
  • Efimenko, L. A.1
  • Ramus’, A. A.1
  • Ponomarenko, D. V.1
  • Ramus’, R. O.2
  • 1 I. M. Gubkin Rusian State University of Oil and Gas, Moscow, Russia , Moscow (Russia)
  • 2 OOO Gazprom VNIIGAZ, Moscow, Russia , Moscow (Russia)
Type
Published Article
Journal
Metallurgist
Publisher
Springer US
Publication Date
Nov 15, 2018
Volume
62
Issue
7-8
Pages
694–700
Identifiers
DOI: 10.1007/s11015-018-0710-2
Source
Springer Nature
Keywords
License
Yellow

Abstract

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.

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