Publication detail

Microstructure Evaluation of Heterogeneous Electron Beam Weld between Stabilised Austenitic and ODS Ferritic Steel

JAN, V. ČUPERA, J. ŠOHAJ, P. HAVLÍK, P.

Original Title

Microstructure Evaluation of Heterogeneous Electron Beam Weld between Stabilised Austenitic and ODS Ferritic Steel

Type

journal article in Scopus

Language

English

Original Abstract

The weldability of advanced heat resistant ODS metallic materials in combination with conventional materials is a prior requirement for their wider use in energy production. The microstructure of ODS steels is composed of alpha iron based matrix with dispersed oxide particles. Due to heating during conventional welding, the microstructure and properties of the resulting weld joints are affected and the joints often become the weakest point of the structure. The electron beam welding with its reduced heat affected zone size may be an answer in this. The presented article is focused on thorough metallographic evaluation of the structure of heterogeneous electron beam welds which combine stabilized austenitic stainless steel with the MA956 ferritic ODS steel. EB welded joints were evaluated by light and analytical electron microscopy including EDS and phase EBSD analyses in the as-welded state and after post-weld heat treatment. Mechanical properties of the weld were evaluated from the results of micro hardness profiles. Achieving an appropriate structure of such welds and correct welding parameters are crucial aspects for future successful application of similar joints in energy industry

Keywords

electron beam welding, ODS steel, oxide particles, heterogeneous joints, EBSD

Authors

JAN, V.; ČUPERA, J.; ŠOHAJ, P.; HAVLÍK, P.

Released

1. 3. 2017

Publisher

Trans Tech Publications

Location

Zurich , Switzerland

ISBN

0255-5476

Periodical

Materials Science Forum

Year of study

891

Number

1

State

Swiss Confederation

Pages from

185

Pages to

189

Pages count

5

URL

https://www.scientific.net/Paper/Preview/506102

BibTex

@article{BUT133624,
  author="Vít {Jan} and Jan {Čupera} and Pavel {Šohaj} and Petr {Havlík}",
  title="Microstructure Evaluation of Heterogeneous Electron Beam Weld between Stabilised Austenitic and ODS Ferritic Steel",
  journal="Materials Science Forum",
  year="2017",
  volume="891",
  number="1",
  pages="185--189",
  doi="10.4028/www.scientific.net/MSF.891.185",
  issn="0255-5476",
  url="https://www.scientific.net/Paper/Preview/506102"
}