Validation of a Constitutive Model for Creep Deformation and Fracture in a 1Cr½Mo Ferritic Steel

Creep processes in MAR-M247 Nickel - Base Superalloy were studied at elevated temperatures. The stress exponents of creep rate n and time to fracture m indicate power-low (dislocation) creep regime and suggest the same controlling mechanism for the creep deformation and fracture. The variation of values of parameter n within the interval of applied stress may indicate changes in the rate-controlling creep deformation mechanism. The possibility of using of Monkman-Grant relationship for creep life prediction was demonstrated.

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Discussion: “An Inelastic Constitutive Model for Monotonic, Cyclic, and Creep Deformation: Part I—Equations Development and Analytical Procedures and Part II—Application to Type 304 Stainless Steel” (Miller, A., 1976, ASME J. Eng. Mater. Technol., 98, pp. 97–105, 106–112)

Journal of Engineering Materials and Technology ◽

10.1115/1.3443347 ◽

1976 ◽

Vol 98 (2) ◽

pp. 112-112

Author(s):

Erhard Krempl

Keyword(s):

Stainless Steel ◽

Constitutive Model ◽

Creep Deformation ◽

304 Stainless Steel ◽

Analytical Procedures ◽

Type 304 ◽

Type 304 Stainless Steel

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Creep deformation and fracture behaviour of modified 9Cr-1Mo steel in flowing liquid sodium environment

Materials Science and Engineering A ◽

10.1016/j.msea.2017.07.004 ◽

2017 ◽

Vol 702 ◽

pp. 232-240 ◽

Cited By ~ 3

Author(s):

S. Ravi ◽

J. Vanaja ◽

V.D. Vijayanand ◽

P. Rajasundaram ◽

S. Vijayaraghavan ◽

...

Keyword(s):

Creep Deformation ◽

Fracture Behaviour ◽

Liquid Sodium ◽

Flowing Liquid ◽

Deformation And Fracture

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Interrelationship between Creep Deformation and Damage for Advanced Creep-Resistant Steels

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.774.119 ◽

2018 ◽

Vol 774 ◽

pp. 119-124

Author(s):

Vàclav Sklenička ◽

Květa Kuchařová ◽

Marie Kvapilová ◽

Luboš Kloc ◽

Jiri Dvorak ◽

...

Keyword(s):

Creep Deformation ◽

Power Plants ◽

Fracture Behaviour ◽

Creep Data ◽

Creep Life ◽

Empirical Formulas ◽

Deformation And Fracture ◽

Creep Resistant Steels ◽

Insight Into ◽

Time Assessment

The components used in power plants generally operate at elevated and/or high temperature and are subjected to internal pressure. Under such conditions creep is of a great concern and there is an urgent demand for methods which can be used to predict the creep life. In this work, using our earlier published creep data for advanced creep-resistant T23 and P92 steels, the interrelationship between creep deformation and damage have been analysed by linking them to the identified acting mechanisms, in terms of empirical formulas for the fracture time assessment. The validity and the applicability of various formulas are examined with the objective to gain insight into the creep deformation and fracture behaviour of the steels under investigation.

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Interesting relationships for creep deformation and damage and their applicability for 9Cr-1Mo ferritic steel

Transactions of the Indian Institute of Metals ◽

10.1007/s12666-010-0103-0 ◽

2010 ◽

Vol 63 (2-3) ◽

pp. 675-680 ◽

Cited By ~ 6

Author(s):

B. K. Choudhary ◽

C. Phaniraj ◽

Baldev Raj

Keyword(s):

Creep Deformation ◽

Ferritic Steel

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3438 Creep deformation and fracture in clay reinforced nylon nanocomposite

The proceedings of the JSME annual meeting ◽

10.1299/jsmemecjo.2006.1.0_587 ◽

2006 ◽

Vol 2006.1 (0) ◽

pp. 587-588

Author(s):

Shijie ZHU ◽

Masanori OKAZAKI ◽

Arimitsu USUKI ◽

Makoto KATOH

Keyword(s):

Creep Deformation ◽

Deformation And Fracture

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Mechanical Properties in Small Dimensions

MRS Bulletin ◽

10.1557/mrs2002.14 ◽

2002 ◽

Vol 27 (1) ◽

pp. 12-17 ◽

Cited By ~ 13

Author(s):

Richard P. Vinci ◽

Shefford P. Baker

Keyword(s):

Thin Film ◽

Mechanical Properties ◽

Mechanical Behavior ◽

Significant Role ◽

Creep Deformation ◽

Film Growth ◽

Thin Film Growth ◽

Length Scale ◽

Deformation And Fracture ◽

Anelastic Behavior

AbstractThis brief article describes the content of the January 2002 issue of MRS Bulletin focusing on Mechanical Properties in Small Dimensions. Articles discuss the current understanding ofstressevolution during thin-film growth, elastic and anelastic behavior, dislocation-mediated plasticity, creep deformation, and fracture. Emphasis is placed on explaining the mechanisms that underlie thewell-known fact that length scale can play a significant role in mechanical behavior.

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