Study of Deformation Behavior of Simulated Inter-Critical Heat-Affected Zones of Modified 9Cr-1Mo Steel

A. K. Bhaduri; C. R.  Das; S. K. Albert; A. Klenk; B. S. Murty

doi:10.1080/10426910903206725

Study of Deformation Behavior of Simulated Inter-Critical Heat-Affected Zones of Modified 9Cr-1Mo Steel

A. K. Bhaduri, C. R. Das, S. K. Albert, A. Klenk, B. S. Murty

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Deformation behavior of Gleeble-simulated inter-critical heat affected zone (ICHAZ) of modified 9Cr-1Mo steel has been studied using instrumented microhardness testing. The strain rate sensitivity exponent and activation volume of ICHAZs produced from steels with different prior austenite grain sizes (PAGS) have been estimated. In the simulated ICHAZ, the strain rate sensitivity exponent is lower for larger PAGS (100-120 mu m) than for smaller PAGS (20-30 mu m), while the activation volume is higher for larger PAGS. The slope of the loading line at any given point was higher in the simulated ICHAZ of the steel with larger PAGS, indicating that the ICHAZ in the steel with larger PAGS is more resistant to deformation than in the steel with smaller PAGS.

Original language	English
Journal	Materials and Manufacturing Processes
Volume	26
Issue number	1
Pages (from-to)	62-65
ISSN	1042-6914
DOIs	https://doi.org/10.1080/10426910903206725
Publication status	Published - 2011
Externally published	Yes

Keywords

Activation volume
Inter-critical heat affected zone
Prior austenite grain size
Strain rate sensitivity

Access to Document

10.1080/10426910903206725

OpenUrl availability

Full text

Cite this

@article{988c5ca2c80244a1b8e72cf0e5177042,

title = "Study of Deformation Behavior of Simulated Inter-Critical Heat-Affected Zones of Modified 9Cr-1Mo Steel",

abstract = "Deformation behavior of Gleeble-simulated inter-critical heat affected zone (ICHAZ) of modified 9Cr-1Mo steel has been studied using instrumented microhardness testing. The strain rate sensitivity exponent and activation volume of ICHAZs produced from steels with different prior austenite grain sizes (PAGS) have been estimated. In the simulated ICHAZ, the strain rate sensitivity exponent is lower for larger PAGS (100-120 mu m) than for smaller PAGS (20-30 mu m), while the activation volume is higher for larger PAGS. The slope of the loading line at any given point was higher in the simulated ICHAZ of the steel with larger PAGS, indicating that the ICHAZ in the steel with larger PAGS is more resistant to deformation than in the steel with smaller PAGS.",

keywords = "Activation volume, Inter-critical heat affected zone, Prior austenite grain size, Strain rate sensitivity",

author = "Bhaduri, {A. K.} and Das, {C. R.} and Albert, {S. K.} and A. Klenk and Murty, {B. S.}",

year = "2011",

doi = "10.1080/10426910903206725",

language = "English",

volume = "26",

pages = "62--65",

journal = "Materials and Manufacturing Processes",

issn = "1042-6914",

publisher = "Taylor & Francis Inc.",

number = "1",

}

TY - JOUR

T1 - Study of Deformation Behavior of Simulated Inter-Critical Heat-Affected Zones of Modified 9Cr-1Mo Steel

AU - Bhaduri, A. K.

AU - Das, C. R.

AU - Albert, S. K.

AU - Klenk, A.

AU - Murty, B. S.

PY - 2011

Y1 - 2011

N2 - Deformation behavior of Gleeble-simulated inter-critical heat affected zone (ICHAZ) of modified 9Cr-1Mo steel has been studied using instrumented microhardness testing. The strain rate sensitivity exponent and activation volume of ICHAZs produced from steels with different prior austenite grain sizes (PAGS) have been estimated. In the simulated ICHAZ, the strain rate sensitivity exponent is lower for larger PAGS (100-120 mu m) than for smaller PAGS (20-30 mu m), while the activation volume is higher for larger PAGS. The slope of the loading line at any given point was higher in the simulated ICHAZ of the steel with larger PAGS, indicating that the ICHAZ in the steel with larger PAGS is more resistant to deformation than in the steel with smaller PAGS.

AB - Deformation behavior of Gleeble-simulated inter-critical heat affected zone (ICHAZ) of modified 9Cr-1Mo steel has been studied using instrumented microhardness testing. The strain rate sensitivity exponent and activation volume of ICHAZs produced from steels with different prior austenite grain sizes (PAGS) have been estimated. In the simulated ICHAZ, the strain rate sensitivity exponent is lower for larger PAGS (100-120 mu m) than for smaller PAGS (20-30 mu m), while the activation volume is higher for larger PAGS. The slope of the loading line at any given point was higher in the simulated ICHAZ of the steel with larger PAGS, indicating that the ICHAZ in the steel with larger PAGS is more resistant to deformation than in the steel with smaller PAGS.

KW - Activation volume

KW - Inter-critical heat affected zone

KW - Prior austenite grain size

KW - Strain rate sensitivity

U2 - 10.1080/10426910903206725

DO - 10.1080/10426910903206725

M3 - Journal article

SN - 1042-6914

VL - 26

SP - 62

EP - 65

JO - Materials and Manufacturing Processes

JF - Materials and Manufacturing Processes

IS - 1

ER -

Study of Deformation Behavior of Simulated Inter-Critical Heat-Affected Zones of Modified 9Cr-1Mo Steel

Abstract

Keywords

Access to Document

OpenUrl availability

Fingerprint

Cite this