Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 171-175 |
| Seitenumfang | 5 |
| Fachzeitschrift | International Heat Treatment and Surface Engineering |
| Jahrgang | 4 |
| Ausgabenummer | 4 |
| Publikationsstatus | Veröffentlicht - 1 Dez. 2010 |
Abstract
To generally predict the mechanical properties of steels following heat treatment, the isothermal time-temperature-transformation (TTT) diagrams must be known. The isothermal kinetics of the phase transformation is influenced by the austenitisation conditions and the deformation processes. Owing to the requirements of the process chain 'integrated heat treatment following hot-forging', the steels are austenitised at a comparatively high temperature and deformed before quenching. The TTT diagrams found in the literature only treat limited austenitisation temperatures and do not generally consider different deformation levels. However, the measurements of the corresponding TTT diagrams are both costly and time consuming. In addition to this, the isothermal transformations of low alloyed steels, which transform very quickly, cannot be measured using those dilatometers which are readily available. 1 In this paper, the TTT diagrams of the 42CrMo4 steel austenitised at 1200°C and deformed at different levels are computed from the dilatometer measurements with continuous cooling using the methods developed by Buza et al.2 and Rios.3
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Allgemeine Materialwissenschaften
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in: International Heat Treatment and Surface Engineering, Jahrgang 4, Nr. 4, 01.12.2010, S. 171-175.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Computation of isothermal transformation diagrams of 42CrMo4 steel from dilatometer measurements with continuous cooling
AU - Bach, F. W.
AU - Schaper, M.
AU - Yu, Z.
AU - Nürnberger, F.
AU - Gretzki, T.
AU - Rodman, D.
AU - Springer, R.
PY - 2010/12/1
Y1 - 2010/12/1
N2 - To generally predict the mechanical properties of steels following heat treatment, the isothermal time-temperature-transformation (TTT) diagrams must be known. The isothermal kinetics of the phase transformation is influenced by the austenitisation conditions and the deformation processes. Owing to the requirements of the process chain 'integrated heat treatment following hot-forging', the steels are austenitised at a comparatively high temperature and deformed before quenching. The TTT diagrams found in the literature only treat limited austenitisation temperatures and do not generally consider different deformation levels. However, the measurements of the corresponding TTT diagrams are both costly and time consuming. In addition to this, the isothermal transformations of low alloyed steels, which transform very quickly, cannot be measured using those dilatometers which are readily available. 1 In this paper, the TTT diagrams of the 42CrMo4 steel austenitised at 1200°C and deformed at different levels are computed from the dilatometer measurements with continuous cooling using the methods developed by Buza et al.2 and Rios.3
AB - To generally predict the mechanical properties of steels following heat treatment, the isothermal time-temperature-transformation (TTT) diagrams must be known. The isothermal kinetics of the phase transformation is influenced by the austenitisation conditions and the deformation processes. Owing to the requirements of the process chain 'integrated heat treatment following hot-forging', the steels are austenitised at a comparatively high temperature and deformed before quenching. The TTT diagrams found in the literature only treat limited austenitisation temperatures and do not generally consider different deformation levels. However, the measurements of the corresponding TTT diagrams are both costly and time consuming. In addition to this, the isothermal transformations of low alloyed steels, which transform very quickly, cannot be measured using those dilatometers which are readily available. 1 In this paper, the TTT diagrams of the 42CrMo4 steel austenitised at 1200°C and deformed at different levels are computed from the dilatometer measurements with continuous cooling using the methods developed by Buza et al.2 and Rios.3
KW - 42CrMo4
KW - Buza
KW - Dilatometer measurement
KW - Integrated heat treatment
KW - Rios
KW - TTT diagram
UR - http://www.scopus.com/inward/record.url?scp=78650900331&partnerID=8YFLogxK
U2 - 10.1179/174951410X12851626813096
DO - 10.1179/174951410X12851626813096
M3 - Article
AN - SCOPUS:78650900331
VL - 4
SP - 171
EP - 175
JO - International Heat Treatment and Surface Engineering
JF - International Heat Treatment and Surface Engineering
SN - 1749-5148
IS - 4
ER -