Back-Stress and Its Evolution during Primary Creep in Particle Strengthened Nickel Superalloys

Sarkar, Sanket; Gao, Yan; Huang, Shenyan; Bhattacharya, Saswata; Patil, Swapnil; Oruganti, Ramkumar

doi:10.3390/cryst10040306

Back-Stress and Its Evolution during Primary Creep in Particle Strengthened Nickel Superalloys

Journal Article · Thu Apr 16 00:00:00 EDT 2020 · Crystals

DOI:https://doi.org/10.3390/cryst10040306· OSTI ID:1735408

Sarkar, Sanket ^[1]; Gao, Yan ^[2]; Huang, Shenyan ^[2]; Bhattacharya, Saswata ^[3]; Patil, Swapnil ^[1]; Oruganti, Ramkumar ^[1]

GE Research, Bangalore (India)
GE Research, Niskayuna, NY (United States)
IIT Hyderabad, Kandi Sangareddy (India)

According to Eshelby’s theory, inelastically inhomogeneous inclusions in a metallic matrix give rise to a distribution of internal stresses. In the case of particle strengthened materials, such as nickel base superalloys, the presence and evolution of this back-stress leads to various observable effects, such as primary creep, back-flow upon loading, and memory of prior deformation. This article presents the background of the concept of back-stress and how it applies to the scenario of creep. A derivation of an evolution equation for back-stress in the context of primary creep is also presented. The results from neutron diffraction with in-situ creep experiments on directionally solidified nickel superalloys are presented in order to demonstrate the validity of the proposed equation and the corollaries derived therefrom.

View Accepted Manuscript (DOE)

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1735408

Journal Information:: Crystals, Journal Name: Crystals Journal Issue: 4 Vol. 10; ISSN 2073-4352

Publisher:: MDPICopyright Statement

Country of Publication:: United States

Language:: English

References (16)

Calculation of back stress decrease caused by climb of Orowan loops in a dispersion hardened alloy Mori, T.; Mura, T. Acta Metallurgica, Vol. 26, Issue 8 https://doi.org/10.1016/0001-6160(78)90003-2	journal	August 1978
Evidence of variation in slip mode in a polycrystalline nickel-base superalloy with change in temperature from neutron diffraction strain measurements Daymond, M. R.; Preuss, M.; Clausen, B. Acta Materialia, Vol. 55, Issue 9 https://doi.org/10.1016/j.actamat.2007.01.013	journal	May 2007
Lattice strain evolution during creep in single-crystal superalloys Coakley, James; Reed, Roger C.; Warwick, Jonnathan L. W. Acta Materialia, Vol. 60, Issue 6-7 https://doi.org/10.1016/j.actamat.2012.01.039	journal	April 2012
Deformation behaviour of an advanced nickel-based superalloy studied by neutron diffraction and electron microscopy Grant, Benedict M. B.; Francis, Elisabeth M.; Quinta da Fonseca, Joao Acta Materialia, Vol. 60, Issue 19 https://doi.org/10.1016/j.actamat.2012.09.005	journal	November 2012
High-temperature deformation mechanisms in a polycrystalline nickel-base superalloy studied by neutron diffraction and electron microscopy Francis, E. M.; Grant, B. M. B.; Fonseca, J. Quinta da Acta Materialia, Vol. 74 https://doi.org/10.1016/j.actamat.2014.04.028	journal	August 2014
Lattice strain evolution and load partitioning during creep of a Ni-based superalloy single crystal with rafted γ′ microstructure Coakley, James; Ma, Dong; Frost, Matthew Acta Materialia, Vol. 135 https://doi.org/10.1016/j.actamat.2017.06.021	journal	August 2017
Microstrain evolution during creep of a high volume fraction superalloy Ma, S.; Brown, D.; Bourke, M. A. M. Materials Science and Engineering: A, Vol. 399, Issue 1-2 https://doi.org/10.1016/j.msea.2005.02.034	journal	June 2005
Elastic moduli and load partitioning in a single-crystal nickel superalloy Dye, D.; Coakley, J.; Vorontsov, V. A. Scripta Materialia, Vol. 61, Issue 2 https://doi.org/10.1016/j.scriptamat.2009.03.008	journal	July 2009
Distortion of a Crystal by Point Imperfections Eshelby, J. D. Journal of Applied Physics, Vol. 25, Issue 2 https://doi.org/10.1063/1.1721615	journal	February 1954
The deformation of plastically non-homogeneous materials Ashby, M. F. The Philosophical Magazine: A Journal of Theoretical Experimental and Applied Physics, Vol. 21, Issue 170 https://doi.org/10.1080/14786437008238426	journal	February 1970
The work-hardening of copper-silica: I. A model based on internal stresses, with no plastic relaxation Brown, L. M.; Stobbs, W. M. Philosophical Magazine, Vol. 23, Issue 185 https://doi.org/10.1080/14786437108217405	journal	May 1971
The work-hardening of copper-silica v. equilibrium plastic relaxation by secondary dislocations Brown, L. M.; Stobbs, W. M. Philosophical Magazine, Vol. 34, Issue 3 https://doi.org/10.1080/14786437608222028	journal	September 1976
A Microstructure-Based Model for Creep of Gamma Prime Strengthened Nickel-Based Superalloys Oruganti, Ramkumar; Shukla, Adarsh; Nalawade, Sachin Journal of Engineering Materials and Technology, Vol. 141, Issue 1 https://doi.org/10.1115/1.4040554	journal	July 2018
Modeling the Effects of Damage and Microstructural Evolution on the Creep Behavior of Engineering Alloys McLean, M.; Dyson, B. F. Journal of Engineering Materials and Technology, Vol. 122, Issue 3 https://doi.org/10.1115/1.482798	journal	February 2000
Work Hardening Behaviour of Alumina Particulate Reinforced 2024 Aluminium Alloy Matrix Composites Kamat, S. V.; Manoharan, M. Journal of Composite Materials, Vol. 27, Issue 18 https://doi.org/10.1177/002199839302701801	journal	December 1993
Microstructure based creep constitutive model for precipitation strengthened alloys: theory and application Dyson, B. F. Materials Science and Technology, Vol. 25, Issue 2 https://doi.org/10.1179/174328408X369348	journal	February 2009

Similar Records

Creep lifetime prediction of oxide-dispersion-strengthened nickel-base superalloys: A micromechanically based approach

Journal Article · Sat Nov 30 23:00:00 EST 1996 · Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science · OSTI ID:438551

Welding and Weldability of Directionally Solidified Single Crystal Nickel-Base Superalloys

Technical Report · Mon Sep 01 00:00:00 EDT 1997 · OSTI ID:770471

Creep crack growth behavior at 1033 K of directionally solidified CM 247 LC -- A cast nickel-base superalloy

Journal Article · Sat Nov 30 23:00:00 EST 1996 · Scripta Materialia · OSTI ID:413267

Related Subjects

36 MATERIALS SCIENCE
Eshelby inclusion
back-stress
creep
neutron diffraction
superalloys

Back-Stress and Its Evolution during Primary Creep in Particle Strengthened Nickel Superalloys

Citation Formats

References (16)

Similar Records

Related Subjects