Detail publikace

EBSD Analysis of Phase Compositions of TRIP Steel on Various Strain Levels

MAN, O. PANTĚLEJEV, L. PEŠINA, Z.

Originální název

EBSD Analysis of Phase Compositions of TRIP Steel on Various Strain Levels

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Flat test bar made of TRIP steel was sequentially strained in tension. Eeach deformation step was made on a predefined strain level in which the phase composition was measured using EBSD; the analyses were made ex-situ exactly in the same area of 30x30 micrometer. Retained austenite (RA) was present in the form of elongated grains (plates) and roughly equiaxial ones. The RA content was initially 14.5% and decreased with imposed strain down to approximately 5% in selected strain range from 0% to 10%. This is in agreement to some extent with outcomes of both in-situ and ex-situ experiments presented by other authors, the difference beeing supposed either in data clean up or in variation in micriostructure of particular steel. Kernel average misorientation method was confirmed as useful tool to discern bainite and grainy ferrite in lightly deformed specimen. Problem arose in distinguishing between martensite and deformed ferrite at higher deformation levels because of high dislocation density and/or lattice distortion in both components. The ferrite and retained austenite fraction were analysed with sufficient accuracy; martensite fraction was established with high degree of uncertainty.

Klíčová slova

Electron backscattering diffraction (EBSD), TRIP effect, Retained austenite

Autoři

MAN, O.; PANTĚLEJEV, L.; PEŠINA, Z.

Rok RIV

2009

Vydáno

2. 6. 2009

Nakladatel

University of Žilina

Místo

Žilina

ISSN

1335-0803

Periodikum

Materiálové inžinierstvo

Ročník

XVI

Číslo

2

Stát

Slovenská republika

Strany od

11

Strany do

17

Strany počet

7

BibTex

@article{BUT46798,
  author="Ondřej {Man} and Libor {Pantělejev} and Zbyněk {Pešina}",
  title="EBSD Analysis of Phase Compositions of TRIP Steel on Various Strain Levels",
  journal="Materiálové inžinierstvo",
  year="2009",
  volume="XVI",
  number="2",
  pages="11--17",
  issn="1335-0803"
}