TY - JOUR
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.
UR - https://www.scopus.com/pages/publications/85015647218
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 -