Combination of elementary hardening mechanisms in a Cr-Mo-V steel

Kari Törrönen; Heikki Kotilainen; Pertti Nenonen

doi:10.1016/B978-1-4832-8412-5.50237-X

Combination of elementary hardening mechanisms in a Cr-Mo-V steel

Kari Törrönen
, Heikki Kotilainen
, Pertti Nenonen

VTT Technical Research Centre of Finland

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

The combination of elementary hardening mechanisms at room temperature in a quenched and tempered, secondary hardening Cr-Mo-V steel has been studied. The effect of single parameters per se, and their superposition, have been studied for dislocation processes up to yield point.

The results show that the temperature independent component of the yield strength can be solely attributed to the dislocation density. The effect of fine carbide dispersion is included in that of the dislocation density. Using values given in the literature the temperature independent component of yield strength can be derived also as a function of the cell size and particle hardening or solely as a result of packet boundary strengthening, but microstructural observations do not support these alternatives. The temperature dependent component of yield strength is shown to be due to the ferrite lattice itself and also partly due to cell boundaries or solution hardening.

Finally, a dislocation model for yielding is presented according to which the main dislocation sources are the dislocation segments locked by small carbides inside the cells and laths.

Original language	English
Title of host publication	Strength of Metals and Alloys
Subtitle of host publication	Proceedings of the 5th International Conference
Editors	P. Haasen, V. Gerold, G. Kostorz
Place of Publication	Oxford
Publisher	Pergamon Press
Pages	1437-1442
Volume	2
ISBN (Print)	978-1-4832-8412-5
DOIs	https://doi.org/10.1016/B978-1-4832-8412-5.50237-X
Publication status	Published - 1979
MoE publication type	A4 Article in a conference publication
Event	5th International Conference on the Strength of Metals and Alloys - Aachen, Germany Duration: 27 Aug 1979 → 31 Aug 1979

Conference

Conference	5th International Conference on the Strength of Metals and Alloys
Country/Territory	Germany
City	Aachen
Period	27/08/79 → 31/08/79

Access to Document

10.1016/B978-1-4832-8412-5.50237-X

Cite this

@inproceedings{4fe2f2caa01e4ca585ccfec93596dbd2,

title = "Combination of elementary hardening mechanisms in a Cr-Mo-V steel",

abstract = "The combination of elementary hardening mechanisms at room temperature in a quenched and tempered, secondary hardening Cr-Mo-V steel has been studied. The effect of single parameters per se, and their superposition, have been studied for dislocation processes up to yield point. The results show that the temperature independent component of the yield strength can be solely attributed to the dislocation density. The effect of fine carbide dispersion is included in that of the dislocation density. Using values given in the literature the temperature independent component of yield strength can be derived also as a function of the cell size and particle hardening or solely as a result of packet boundary strengthening, but microstructural observations do not support these alternatives. The temperature dependent component of yield strength is shown to be due to the ferrite lattice itself and also partly due to cell boundaries or solution hardening. Finally, a dislocation model for yielding is presented according to which the main dislocation sources are the dislocation segments locked by small carbides inside the cells and laths.",

author = "Kari T{\"o}rr{\"o}nen and Heikki Kotilainen and Pertti Nenonen",

year = "1979",

doi = "10.1016/B978-1-4832-8412-5.50237-X",

language = "English",

isbn = "978-1-4832-8412-5",

volume = "2",

pages = "1437--1442",

editor = "P. Haasen and V. Gerold and G. Kostorz",

booktitle = "Strength of Metals and Alloys",

publisher = "Pergamon Press",

address = "United Kingdom",

note = "5th International Conference on the Strength of Metals and Alloys ; Conference date: 27-08-1979 Through 31-08-1979",

}

Törrönen, K, Kotilainen, H & Nenonen, P 1979, Combination of elementary hardening mechanisms in a Cr-Mo-V steel. in P Haasen, V Gerold & G Kostorz (eds), Strength of Metals and Alloys: Proceedings of the 5th International Conference. vol. 2, Pergamon Press, Oxford, pp. 1437-1442, 5th International Conference on the Strength of Metals and Alloys, Aachen, North Rhine-Westphalia, Germany, 27/08/79. https://doi.org/10.1016/B978-1-4832-8412-5.50237-X

Combination of elementary hardening mechanisms in a Cr-Mo-V steel. / Törrönen, Kari; Kotilainen, Heikki; Nenonen, Pertti.
Strength of Metals and Alloys: Proceedings of the 5th International Conference. ed. / P. Haasen; V. Gerold; G. Kostorz. Vol. 2 Oxford: Pergamon Press, 1979. p. 1437-1442.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Combination of elementary hardening mechanisms in a Cr-Mo-V steel

AU - Törrönen, Kari

AU - Kotilainen, Heikki

AU - Nenonen, Pertti

PY - 1979

Y1 - 1979

N2 - The combination of elementary hardening mechanisms at room temperature in a quenched and tempered, secondary hardening Cr-Mo-V steel has been studied. The effect of single parameters per se, and their superposition, have been studied for dislocation processes up to yield point. The results show that the temperature independent component of the yield strength can be solely attributed to the dislocation density. The effect of fine carbide dispersion is included in that of the dislocation density. Using values given in the literature the temperature independent component of yield strength can be derived also as a function of the cell size and particle hardening or solely as a result of packet boundary strengthening, but microstructural observations do not support these alternatives. The temperature dependent component of yield strength is shown to be due to the ferrite lattice itself and also partly due to cell boundaries or solution hardening. Finally, a dislocation model for yielding is presented according to which the main dislocation sources are the dislocation segments locked by small carbides inside the cells and laths.

AB - The combination of elementary hardening mechanisms at room temperature in a quenched and tempered, secondary hardening Cr-Mo-V steel has been studied. The effect of single parameters per se, and their superposition, have been studied for dislocation processes up to yield point. The results show that the temperature independent component of the yield strength can be solely attributed to the dislocation density. The effect of fine carbide dispersion is included in that of the dislocation density. Using values given in the literature the temperature independent component of yield strength can be derived also as a function of the cell size and particle hardening or solely as a result of packet boundary strengthening, but microstructural observations do not support these alternatives. The temperature dependent component of yield strength is shown to be due to the ferrite lattice itself and also partly due to cell boundaries or solution hardening. Finally, a dislocation model for yielding is presented according to which the main dislocation sources are the dislocation segments locked by small carbides inside the cells and laths.

U2 - 10.1016/B978-1-4832-8412-5.50237-X

DO - 10.1016/B978-1-4832-8412-5.50237-X

M3 - Conference article in proceedings

SN - 978-1-4832-8412-5

VL - 2

SP - 1437

EP - 1442

BT - Strength of Metals and Alloys

A2 - Haasen, P.

A2 - Gerold, V.

A2 - Kostorz, G.

PB - Pergamon Press

CY - Oxford

T2 - 5th International Conference on the Strength of Metals and Alloys

Y2 - 27 August 1979 through 31 August 1979

ER -

Combination of elementary hardening mechanisms in a Cr-Mo-V steel

Abstract

Conference

Access to Document

Fingerprint

Cite this