Continuum Damage Mechanics Approach to Predict Creep Behaviour of Modified 9Cr-1Mo Ferritic Steel at 873 K

被引：16

作者：

Christopher, J. ^{[1
,2
]}

Sainath, G. ^{[2
]}

Srinivasan, V. S. ^{[2
]}

Samuel, E. Isaac ^{[2
]}

Choudhary, B. K. ^{[1
,2
]}

Mathew, M. D. ^{[2
]}

Jayakumar, T. ^{[2
]}

机构：

[1] Atom Energy Regulatory Board, Safety Res Inst, Kalpakkam 603102, Tamil Nadu, India

[2] Indira Gandhi Ctr Atom Res, Met & Mat Grp, Kalpakkam 603102, Tamil Nadu, India

来源：

6TH INTERNATIONAL CONFERENCE ON CREEP, FATIGUE AND CREEP-FATIGUE INTERACTION | 2013年 / 55卷

关键词：

Creep behaviour; modified 9Cr-1Mo steel; continuum damage mechanics;

D O I：

10.1016/j.proeng.2013.03.334

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The paper deals with the prediction of creep behaviour of modified 9Cr-1Mo ferritic steel at 873 K using continuum damage mechanics (CDM) approach. Creep data as well as the quantitative microstructural information available on heat treated and creep tested conditions in literature have been used for the analysis. The material parameters were then optimised by matching the theoretically generated creep strain-time curves with experimental curves at 110 and 140 MPa corresponding to low and high stress regimes, respectively. Using optimised material parameters, creep behaviour in terms of creep strain-time data, minimum creep rate and time to rupture at different stress levels have been predicted. In general, good agreement between predicted and experimental data has been obtained. (C) 2013 The Authors. Published by Elsevier Ltd.

引用

页码：798 / 804

页数：7

共 18 条

[1]

Danielsen H. K., 2006, Energy Materials, V1, P49, DOI 10.1179/174892306X99732

[2] Use of CDM in materials modeling and component creep life prediction [J].

Dyson, B .

JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME, 2000, 122 (03) :281-296

[3]

Dyson BF, 1998, MICRO HIGH TEMP MAT, P371

[4] A UNIFIED PHENOMENOLOGICAL DESCRIPTION OF WORK-HARDENING AND CREEP BASED ON ONE-PARAMETER MODELS [J].

ESTRIN, Y ;

MECKING, H .

ACTA METALLURGICA, 1984, 32 (01) :57-70

[5] Precipitate stability in creep resistant ferritic steels - Experimental investigations and modelling [J].

Hald, J ;

Korcakova, L .

ISIJ INTERNATIONAL, 2003, 43 (03) :420-427

[6] Computer simulation of the high temperature creep behaviour of Cr-Mo steels [J].

Hore, S. ;

Ghosh, R. N. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (19-20) :6095-6102

[7] Inherent creep strength and long term creep strength properties of ferritic steels [J].

Kimura, K ;

Kushima, H ;

Abe, F ;

Yagi, K .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 234 :1079-1082

[8] Long-term creep deformation property of modified 9Cr-1Mo steel [J].

Kimura, K. ;

Kushima, H. ;

Sawada, K. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 510-11 :58-63

[9] Elevated temperature ferritic and martensitic steels and their application to future nuclear reactors [J].

Klueh, RL .

INTERNATIONAL MATERIALS REVIEWS, 2005, 50 (05) :287-310

[10]

Mannan SL, 2003, T INDIAN I METALS, V56, P155

← 1 2 →