| 10868 |
Creator |
bb540da6e57efd5efcf39c030188584d |
| 10868 |
Creator |
ext-64f63c738e26c0b48a6869717cced4b5 |
| 10868 |
Creator |
ext-913667cba8902080eacead7b728afa9f |
| 10868 |
Creator |
ext-ef8819901f044252d197c9e3ce554ddd |
| 10868 |
Date |
2008-08 |
| 10868 |
Is Part Of |
repository |
| 10868 |
Is Part Of |
p13596454 |
| 10868 |
abstract |
Specially designed AISI Type 316H austenitic stainless steel 25 mm thick compact tension
specimens have been plastically deformed to produce significant tensile hydrostatic
residual stresses at the notch root at mid-thickness. These specimens were thermally
exposed at 550 °C for 4500 hours in order to study elevated temperature creep relaxation
of residual stress and the development of reheat cracking creep damage. Residual strains
within the specimens were measured using diffraction techniques before and after thermal
exposure. A three-dimensional finite element model was developed both to predict the
residual stress within the specimens before and after thermal exposure. No reheat
cracking was found near surface, but due to the reduced creep ductility with increasing
hydrostatic stress, significant creep cavitation was found mid-thickness. A previously
developed creep damage model was applied to predict the onset of reheat cracking.
Good correlation has been found between measurements and finite element predictions
of strain and stress before and after thermal exposure. The extent of creep damage
has also been assessed through destructive examination, providing validation for the
creep damage prediction model. |
| 10868 |
authorList |
authors |
| 10868 |
issue |
14 |
| 10868 |
status |
peerReviewed |
| 10868 |
volume |
56 |
| 10868 |
type |
AcademicArticle |
| 10868 |
type |
Article |
| 10868 |
label |
Turskia, M.; Bouchard, P. J. ; Steuwera, A. and Withers, P. J. (2008). Residual
stress driven creep cracking in AISI Type 316 stainless steel. Acta Materialia, 56(14)
pp. 3598–3612. |
| 10868 |
label |
Turskia, M.; Bouchard, P. J. ; Steuwera, A. and Withers, P. J. (2008). Residual stress
driven creep cracking in AISI Type 316 stainless steel. Acta Materialia, 56(14) pp.
3598–3612. |
| 10868 |
Title |
Residual stress driven creep cracking in AISI Type 316 stainless steel |
| 10868 |
in dataset |
oro |