Details
| Original language | English |
|---|---|
| Pages (from-to) | 105-110 |
| Number of pages | 6 |
| Journal | Steel research international |
| Volume | 79 |
| Issue number | 2 |
| Publication status | Published - Feb 2008 |
| Externally published | Yes |
Abstract
In the present study, the phase transformation behaviour of 51CrV4 steel was investigated both in an actual flange forming process and under idealized isothermal bainitic transformation conditions. The results demonstrated that superimposed external stresses have only a minor effect on the kinetics of the phase transformation, whereas strains resulting from transformation plasticity were significant. Transmission electron microscopy revealed a preferential alignment of the bainite with respect to the external loading direction. This selection of favourably oriented variants in turn causes macroscopic strains. Understanding and minimizing these strains are a key factor in designing functionally graded components with minimum distortion.
Keywords
- Bainite, Differential thermo-mechanical treatment, Functionally graded materials (FGM), Microstructure, Phase transformation, Tailored properties, Temperature field evolution, Transformation plasticity
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Metals and Alloys
- Materials Science(all)
- Materials Chemistry
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In: Steel research international, Vol. 79, No. 2, 02.2008, p. 105-110.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Functional gradation of low alloy steel by differentially controlled phase transformation
AU - Maier, Hans J.
AU - Tschumak, Sergej
AU - Weidi, Ursula
AU - Steinhoff, Kurt
PY - 2008/2
Y1 - 2008/2
N2 - In the present study, the phase transformation behaviour of 51CrV4 steel was investigated both in an actual flange forming process and under idealized isothermal bainitic transformation conditions. The results demonstrated that superimposed external stresses have only a minor effect on the kinetics of the phase transformation, whereas strains resulting from transformation plasticity were significant. Transmission electron microscopy revealed a preferential alignment of the bainite with respect to the external loading direction. This selection of favourably oriented variants in turn causes macroscopic strains. Understanding and minimizing these strains are a key factor in designing functionally graded components with minimum distortion.
AB - In the present study, the phase transformation behaviour of 51CrV4 steel was investigated both in an actual flange forming process and under idealized isothermal bainitic transformation conditions. The results demonstrated that superimposed external stresses have only a minor effect on the kinetics of the phase transformation, whereas strains resulting from transformation plasticity were significant. Transmission electron microscopy revealed a preferential alignment of the bainite with respect to the external loading direction. This selection of favourably oriented variants in turn causes macroscopic strains. Understanding and minimizing these strains are a key factor in designing functionally graded components with minimum distortion.
KW - Bainite
KW - Differential thermo-mechanical treatment
KW - Functionally graded materials (FGM)
KW - Microstructure
KW - Phase transformation
KW - Tailored properties
KW - Temperature field evolution
KW - Transformation plasticity
UR - http://www.scopus.com/inward/record.url?scp=39749141093&partnerID=8YFLogxK
U2 - 10.2374/SRI07SP109-79-2008-105-110
DO - 10.2374/SRI07SP109-79-2008-105-110
M3 - Article
AN - SCOPUS:39749141093
VL - 79
SP - 105
EP - 110
JO - Steel research international
JF - Steel research international
SN - 1611-3683
IS - 2
ER -