Discontinuous cellular precipitation in a Cr-Mn-N steel with niobium and vanadium additions

R. D. Knutsen; C. I. Lang; J. A. Basson

doi:10.1016/j.actamat.2004.01.031

Discontinuous cellular precipitation in a Cr-Mn-N steel with niobium and vanadium additions

R. D. Knutsen^*, C. I. Lang, J. A. Basson

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

71 Citations (Scopus)

Abstract

The influence of niobium and vanadium additions on the precipitation behaviour in a 24Cr-18Mn-1N austenitic stainless steel is characterised during ageing at temperatures from 800 to 1100 °C. Niobium demonstrates a tendency to stabilise the cubic MX-type precipitates, whereas vanadium encourages the formation of hexagonal close-packed M₂X-type precipitates. Vanadium, furthermore, promotes formation of M₂X-type precipitates by the discontinuous cellular precipitation (DCP) reaction. The presence of sigma phase and a high frequency of austenite twinning occur in association with the DCP reaction during ageing. This behaviour, together with the influence of niobium and vanadium, is used to understand the driving force for boundary migration during the DCP reaction.

Original language	English
Pages (from-to)	2407-2417
Number of pages	11
Journal	Acta Materialia
Volume	52
Issue number	8
DOIs	https://doi.org/10.1016/j.actamat.2004.01.031
Publication status	Published - 3 May 2004
Externally published	Yes

Access to Document

10.1016/j.actamat.2004.01.031

Cite this

@article{a41359461ebf402c99781129266fc494,

title = "Discontinuous cellular precipitation in a Cr-Mn-N steel with niobium and vanadium additions",

abstract = "The influence of niobium and vanadium additions on the precipitation behaviour in a 24Cr-18Mn-1N austenitic stainless steel is characterised during ageing at temperatures from 800 to 1100 °C. Niobium demonstrates a tendency to stabilise the cubic MX-type precipitates, whereas vanadium encourages the formation of hexagonal close-packed M2X-type precipitates. Vanadium, furthermore, promotes formation of M2X-type precipitates by the discontinuous cellular precipitation (DCP) reaction. The presence of sigma phase and a high frequency of austenite twinning occur in association with the DCP reaction during ageing. This behaviour, together with the influence of niobium and vanadium, is used to understand the driving force for boundary migration during the DCP reaction.",

author = "Knutsen, {R. D.} and Lang, {C. I.} and Basson, {J. A.}",

year = "2004",

month = may,

day = "3",

doi = "10.1016/j.actamat.2004.01.031",

language = "English",

volume = "52",

pages = "2407--2417",

journal = "Acta Materialia",

issn = "1359-6454",

publisher = "Elsevier",

number = "8",

}

TY - JOUR

T1 - Discontinuous cellular precipitation in a Cr-Mn-N steel with niobium and vanadium additions

AU - Knutsen, R. D.

AU - Lang, C. I.

AU - Basson, J. A.

PY - 2004/5/3

Y1 - 2004/5/3

N2 - The influence of niobium and vanadium additions on the precipitation behaviour in a 24Cr-18Mn-1N austenitic stainless steel is characterised during ageing at temperatures from 800 to 1100 °C. Niobium demonstrates a tendency to stabilise the cubic MX-type precipitates, whereas vanadium encourages the formation of hexagonal close-packed M2X-type precipitates. Vanadium, furthermore, promotes formation of M2X-type precipitates by the discontinuous cellular precipitation (DCP) reaction. The presence of sigma phase and a high frequency of austenite twinning occur in association with the DCP reaction during ageing. This behaviour, together with the influence of niobium and vanadium, is used to understand the driving force for boundary migration during the DCP reaction.

AB - The influence of niobium and vanadium additions on the precipitation behaviour in a 24Cr-18Mn-1N austenitic stainless steel is characterised during ageing at temperatures from 800 to 1100 °C. Niobium demonstrates a tendency to stabilise the cubic MX-type precipitates, whereas vanadium encourages the formation of hexagonal close-packed M2X-type precipitates. Vanadium, furthermore, promotes formation of M2X-type precipitates by the discontinuous cellular precipitation (DCP) reaction. The presence of sigma phase and a high frequency of austenite twinning occur in association with the DCP reaction during ageing. This behaviour, together with the influence of niobium and vanadium, is used to understand the driving force for boundary migration during the DCP reaction.

UR - http://www.scopus.com/inward/record.url?scp=1942455910&partnerID=8YFLogxK

U2 - 10.1016/j.actamat.2004.01.031

DO - 10.1016/j.actamat.2004.01.031

M3 - Article

AN - SCOPUS:1942455910

SN - 1359-6454

VL - 52

SP - 2407

EP - 2417

JO - Acta Materialia

JF - Acta Materialia

IS - 8

ER -

Discontinuous cellular precipitation in a Cr-Mn-N steel with niobium and vanadium additions

Abstract

Access to Document

Other files and links

Fingerprint

Cite this