Publication detail

Assessment of Retained Austenite in Fine Grained Inductive Heat Treated Spring Steel

OLINA, A. PÍŠKA, M. PETRENEC, M. HERVOCHES, C. BERAN, P. PECHOUŠEK, J. KRÁL, P.

English title

Assessment of Retained Austenite in Fine Grained Inductive Heat Treated Spring Steel

Type

WoS Article

Language

en

Original abstract

Advanced thermomechanical hot rolling is becoming a widely used technology for the production of fine-grained spring steel. Different rapid phase transformations during the inductive heat treatment of such steel causes the inhomogeneous mixture of martensitic, bainitic, and austenitic phases that affects the service properties of the steel. An important task is to assess the amount of retained austenite and its distribution over the cross-section of the inductive quenched and tempered wire in order to evaluate the mechanical properties of the material. Three different analytical methods were used for the comparative quantitative assessment of the amount of retained austenite in both the core and rim areas of the sample cross-section: neutron diffraction—for the bulk of the material, Mössbauer spectroscopy—for measurement in a surface layer, and the metallographic investigations carried by the EBSD. The methods confirmed the excessive amount of retained austenite in the core area that could negatively affect the plasticity of the material.

Keywords in English

spring steel; heat treatment; retained austenite; Mössbauer spectroscopy; neutron diffraction

Released

2019-12-05

Publisher

MDPI

Location

Basel, Switzerland

ISSN

1996-1944

Journal

Materials

Volume

12

Number

24

Pages from–to

1–17

Pages count

17

BIBTEX


@article{BUT160701,
  author="Anna {Olina} and Miroslav {Píška} and Martin {Petrenec} and Charles {Hervoches} and Přemysl {Beran} and Jiří {Pechoušek} and Petr {Král}",
  title="Assessment of Retained Austenite in Fine Grained Inductive Heat Treated Spring Steel",
  journal="Materials",
  year="2019",
  volume="12",
  number="24",
  pages="1--17",
  doi="10.3390/ma12244063",
  url="https://www.mdpi.com/1996-1944/12/24/4063"
}