Effect of boundary conditions on the evolution of lattice strains in a polycrystalline austenitic stainless steel

Y. Q. Wang; S. Hossain; S. Kabra; Shu Yan Zhang; D. J. Smith; C. E. Truman

doi:10.1007/s10853-017-0997-6

Effect of boundary conditions on the evolution of lattice strains in a polycrystalline austenitic stainless steel

Y. Q. Wang^*, S. Hossain, S. Kabra, Shu Yan Zhang, D. J. Smith, C. E. Truman

^*Corresponding author for this work

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Abstract

The effect of boundary conditions (constant load, constant strain and elastic follow-up) on lattice strain evolution during creep in a polycrystalline austenitic stainless steel was studied using in situ neutron diffraction at 550 °C. The lattice strains were found to remain constant under constant load control. However, under constant strain and elastic follow-up control, the lattice strains relaxed the most in the elastically softest lattice plane {200} and the least in the elastically stiffest lattice plane {111}. The intergranular stresses created between different grain families were constant during creep tests irrespective of the boundary conditions with the initial applied stresses of 250 MPa.

Original language	English
Pages (from-to)	7929-7936
Number of pages	8
Journal	Journal of Materials Science
Volume	52
Issue number	13
Early online date	17 Mar 2017
DOIs	https://doi.org/10.1007/s10853-017-0997-6
Publication status	Published - 1 Jul 2017

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title = "Effect of boundary conditions on the evolution of lattice strains in a polycrystalline austenitic stainless steel",

abstract = "The effect of boundary conditions (constant load, constant strain and elastic follow-up) on lattice strain evolution during creep in a polycrystalline austenitic stainless steel was studied using in situ neutron diffraction at 550 °C. The lattice strains were found to remain constant under constant load control. However, under constant strain and elastic follow-up control, the lattice strains relaxed the most in the elastically softest lattice plane {200} and the least in the elastically stiffest lattice plane {111}. The intergranular stresses created between different grain families were constant during creep tests irrespective of the boundary conditions with the initial applied stresses of 250 MPa.",

author = "Wang, {Y. Q.} and S. Hossain and S. Kabra and Zhang, {Shu Yan} and Smith, {D. J.} and Truman, {C. E.}",

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T1 - Effect of boundary conditions on the evolution of lattice strains in a polycrystalline austenitic stainless steel

AU - Wang, Y. Q.

AU - Hossain, S.

AU - Kabra, S.

AU - Zhang, Shu Yan

AU - Smith, D. J.

AU - Truman, C. E.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - The effect of boundary conditions (constant load, constant strain and elastic follow-up) on lattice strain evolution during creep in a polycrystalline austenitic stainless steel was studied using in situ neutron diffraction at 550 °C. The lattice strains were found to remain constant under constant load control. However, under constant strain and elastic follow-up control, the lattice strains relaxed the most in the elastically softest lattice plane {200} and the least in the elastically stiffest lattice plane {111}. The intergranular stresses created between different grain families were constant during creep tests irrespective of the boundary conditions with the initial applied stresses of 250 MPa.

AB - The effect of boundary conditions (constant load, constant strain and elastic follow-up) on lattice strain evolution during creep in a polycrystalline austenitic stainless steel was studied using in situ neutron diffraction at 550 °C. The lattice strains were found to remain constant under constant load control. However, under constant strain and elastic follow-up control, the lattice strains relaxed the most in the elastically softest lattice plane {200} and the least in the elastically stiffest lattice plane {111}. The intergranular stresses created between different grain families were constant during creep tests irrespective of the boundary conditions with the initial applied stresses of 250 MPa.

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U2 - 10.1007/s10853-017-0997-6

DO - 10.1007/s10853-017-0997-6

M3 - Article (Academic Journal)

C2 - 32103836

AN - SCOPUS:85015647218

SN - 0022-2461

VL - 52

SP - 7929

EP - 7936

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 13

ER -

Effect of boundary conditions on the evolution of lattice strains in a polycrystalline austenitic stainless steel

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