J 2003

Carbon profile analysis of Fe-Cr-C/Fe-Cr-Ni-C diffusion joints

SOPOUŠEK, Jiří and Bořivoj MILLION

Basic information

Original name

Carbon profile analysis of Fe-Cr-C/Fe-Cr-Ni-C diffusion joints

Authors

SOPOUŠEK, Jiří (203 Czech Republic, guarantor) and Bořivoj MILLION (203 Czech Republic)

Edition

Kovové materiály, Bratislava, Ústav fyziky materiálov Bratislava, 2003, 0023-432X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10403 Physical chemistry

Country of publisher

Slovakia

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.563

RIV identification code

RIV/00216224:14310/03:00008457

Organization unit

Faculty of Science

UT WoS

000182522600005

Keywords in English

weldment; steel; DICTRA; caxbon profile; simulation
Změněno: 25/6/2009 09:24, prof. RNDr. Jiří Sopoušek, CSc.

Abstract

V originále

Former experimental observations of Fe-Cr-C/Fe-Cr-Ni-C weldments are compared in this paper with simulated results. The simulation method is based on the CALPHAD approach completed with theory of multi-component bulk diffusion, the local condition of phase equilibria, and assumption that diffusion is the process that controls the rate of phase transformation. The occurred overall carbon concentration peaks near the welded interface are explained by carbide reactions. Both phase and concentration simulated profiles correspond closely to the foregoing findings. Stable local equilibrium in the diffusion zone and the thermodynamic stability of dissimilar welded joints are discussed.

Links

GA106/00/0855, research and development project
Name: Kinetika precipitace karbidů v Cr-Mo ocelích
Investor: Czech Science Foundation, Kinetics of carbide precipitation in Cr-Mo steels