Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 333-335 |
| Number of pages | 3 |
| Journal | Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing |
| Volume | 559 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2013 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- Creep
- creep-fatigue
- life
- Ni alloy
- steel
Cite this
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A robust model for creep-fatigue life assessment. / Holmström, Stefan (Corresponding Author); Auerkari, Pertti.
In: Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, Vol. 559, No. 1, 2013, p. 333-335.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - A robust model for creep-fatigue life assessment
AU - Holmström, Stefan
AU - Auerkari, Pertti
PY - 2013
Y1 - 2013
N2 - High temperature components subjected to long term cyclic operation will acquire life-limiting damage from both creep and fatigue. A new robust model for creep-fatigue life assessment is proposed with a minimal set of fitting constants, and without the need to separate creep and fatigue damage or life fractions. The model is based on the creep rupture behaviour of the material with a fatigue correction described by hold time (in tension) and total strain range at temperature. The model is shown to predict the observed creep-fatigue life of ferritic steel P91, austenitic steel 316FR, and Ni alloy A230 with a scatter band close to a factor of 2.
AB - High temperature components subjected to long term cyclic operation will acquire life-limiting damage from both creep and fatigue. A new robust model for creep-fatigue life assessment is proposed with a minimal set of fitting constants, and without the need to separate creep and fatigue damage or life fractions. The model is based on the creep rupture behaviour of the material with a fatigue correction described by hold time (in tension) and total strain range at temperature. The model is shown to predict the observed creep-fatigue life of ferritic steel P91, austenitic steel 316FR, and Ni alloy A230 with a scatter band close to a factor of 2.
KW - Creep
KW - creep-fatigue
KW - life
KW - Ni alloy
KW - steel
U2 - 10.1016/j.msea.2012.08.107
DO - 10.1016/j.msea.2012.08.107
M3 - Article
VL - 559
SP - 333
EP - 335
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
IS - 1
ER -