Publication detail

Structural Stability of Heterogeneous Weld Joint of 6CrMoV 8-3-2 and X12CrMoV 10-1 Steels with Increased Nitrogen Content

FORET, R. ZLÁMAL, B. SOPOUŠEK, J. BURŠÍK, J.

Czech title

Strukturní stabilita heterogenních svarových spojů ocelí 6CrMoV 8-3-2 a X12CrMoV 10-1 se zvýšeným obsahem dusíku.

English title

Structural Stability of Heterogeneous Weld Joint of 6CrMoV 8-3-2 and X12CrMoV 10-1 Steels with Increased Nitrogen Content

Type

conference paper

Language

en

Original abstract

. The paper includes the results of a study of structural changes taking place in laboratory weld joints of the 6CrMoV 8-3-2 (T25) and X12CrMoVNb 10-1 (P91) steels annealed at temperatures of 600 and 900 C. The nitrogen content in both steels was increased by ion-nitriding and subsequent homogenization. Carbon and nitrogen redistribution measurement by the EPMA method was complemented with detailed structural analyses aimed at the phase and chemical composition of coexisting carbides and carbonitrides. Results of experimental work were compared with thermodynamic and kinetic calculations using the Thermo-Calc and DICTRA software

Czech abstract

Článek obsahuje výsledky studia strukturních změn probíhajících ve svarových spojích ocelí 6CrMoV 8-3-2 (T25) and X12CrMoVNb 10-1 (P91) žíhaných při teplotách 600 a 900 C.Obsah dusíku v obou ocelích byl zvýšen iontovou nitridací a následnou homogenizací. Redistribuce uhlíku a dusíku byla měřena metodou EPMA, která byla doplněna kompexním rozborem koexistujících karbidů a nitridů . Výsledky experimentů byly porovnány s ermodynamickými a kinetickými výpočty za použití Thermo-Calc a DICTRA software.

English abstract

. The paper includes the results of a study of structural changes taking place in laboratory weld joints of the 6CrMoV 8-3-2 (T25) and X12CrMoVNb 10-1 (P91) steels annealed at temperatures of 600 and 900 C. The nitrogen content in both steels was increased by ion-nitriding and subsequent homogenization. Carbon and nitrogen redistribution measurement by the EPMA method was complemented with detailed structural analyses aimed at the phase and chemical composition of coexisting carbides and carbonitrides. Results of experimental work were compared with thermodynamic and kinetic calculations using the Thermo-Calc and DICTRA software

Keywords in English

creep-resistant steel; weld joint; structural analyses; carbon and nitrogen redistribution

RIV year

2006

Released

18.09.2006

Publisher

Forshungszentrum Julich GmbH

Location

Liege

ISBN

3-89336-436-6

Book

Materials for Advanced Power Engineering 2006

Edition number

1

Pages from–to

1449–1458

Pages count

9

BIBTEX


@inproceedings{BUT19208,
  author="Rudolf {Foret} and Bronislav {Zlámal} and Jiří {Sopoušek} and Jiří {Buršík},
  title="Structural Stability of Heterogeneous Weld Joint of 6CrMoV 8-3-2 and X12CrMoV 10-1 Steels with Increased Nitrogen Content",
  booktitle="Materials for Advanced Power Engineering 2006",
  year="2006",
  month="September",
  pages="1449--1458",
  publisher="Forshungszentrum Julich GmbH",
  address="Liege",
  isbn="3-89336-436-6"
}