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OLINA, A. PÍŠKA, M. PETRENEC, M. HERVOCHES, C. BERAN, P. PECHOUŠEK, J. KRÁL, P.
Original Title
Assessment of Retained Austenite in Fine Grained Inductive Heat Treated Spring Steel
Type
journal article in Web of Science
Language
English
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
spring steel; heat treatment; retained austenite; Mössbauer spectroscopy; neutron diffraction
Authors
OLINA, A.; PÍŠKA, M.; PETRENEC, M.; HERVOCHES, C.; BERAN, P.; PECHOUŠEK, J.; KRÁL, P.
Released
5. 12. 2019
Publisher
MDPI
Location
Basel, Switzerland
ISBN
1996-1944
Periodical
Materials
Year of study
12
Number
24
State
Swiss Confederation
Pages from
1
Pages to
17
Pages count
URL
https://www.mdpi.com/1996-1944/12/24/4063
Full text in the Digital Library
http://hdl.handle.net/11012/195680
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", issn="1996-1944", url="https://www.mdpi.com/1996-1944/12/24/4063" }