| 62292 |
Creator |
bb540da6e57efd5efcf39c030188584d |
| 62292 |
Creator |
a5a16b2bebc68ee08353407aaf2ff585 |
| 62292 |
Creator |
c0fb3d2d570e6a884eacc4aaf6705c26 |
| 62292 |
Creator |
ext-9a5373e3bc7d8a9461a68488ad81e054 |
| 62292 |
Date |
2019 |
| 62292 |
Is Part Of |
repository |
| 62292 |
Is Part Of |
p25891529 |
| 62292 |
abstract |
Intergranular strains are generated due to the incompatible deformations at grain
length-scales during plastic loading in a polycrystalline material. Estimating the
effects of intergranular strains on the creep life of the material is of interest
for accurate life prediction of high-temperature structural systems. In this study,
the effect of the cyclic loading generated intergranular strains on the creep deformation
behaviour of Type 316H austenitic stainless steel was studied using in-situ neutron
diffraction. The load-controlled creep dwells introduced at various positions during
tension-compression cyclic loading with different intergranular strain state but under
the same applied stress showed markedly different behaviours. It is inferred that
the intergranular strains are a significant contributor to the observed differences
in creep deformation behaviour. Comparing the evolution of intergranular strains in
various grain families during plastic and creep deformation, it was found that the
grain families which deformed relatively more or less during plastic deformation behaved
similarly during creep deformation. The present work shows that intergranular strains,
which contribute to accelerating/decelerating creep deformation rates, need to be
accounted for in current creep life assessment procedures, to obtain a more realistic
creep deformation prediction under cyclic loading conditions. |
| 62292 |
authorList |
authors |
| 62292 |
status |
peerReviewed |
| 62292 |
uri |
http://data.open.ac.uk/oro/document/898515 |
| 62292 |
uri |
http://data.open.ac.uk/oro/document/898520 |
| 62292 |
uri |
http://data.open.ac.uk/oro/document/898532 |
| 62292 |
uri |
http://data.open.ac.uk/oro/document/898537 |
| 62292 |
uri |
http://data.open.ac.uk/oro/document/898538 |
| 62292 |
uri |
http://data.open.ac.uk/oro/document/898539 |
| 62292 |
uri |
http://data.open.ac.uk/oro/document/898540 |
| 62292 |
type |
AcademicArticle |
| 62292 |
type |
Article |
| 62292 |
label |
Mamun, A. A. ; Moat, R. J. ; Kelleher, J. and Bouchard, P. J. (2019). The effect
of cyclic-loading generated intergranular strains on the creep deformation of a polycrystalline
material. Materialia (Early Access). |
| 62292 |
label |
Mamun, A. A. ; Moat, R. J. ; Kelleher, J. and Bouchard, P. J. (2019). The effect
of cyclic-loading generated intergranular strains on the creep deformation of a polycrystalline
material. Materialia (Early Access). |
| 62292 |
Title |
The effect of cyclic-loading generated intergranular strains on the creep deformation
of a polycrystalline material |
| 62292 |
in dataset |
oro |