TY - JOUR
T1 - Experimental and modeling results of creep-fatigue life of Inconel 617 and Haynes 230 at 850 °c
AU - Chen, Xiang
AU - Sokolov, Mikhail A.
AU - Sham, Sam
AU - Erdman, Donald L.
AU - Busby, Jeremy T.
AU - Mo, Kun
AU - Stubbins, James F.
PY - 2013/1
Y1 - 2013/1
N2 - Creep-fatigue testing of Ni-based superalloy Inconel 617 and Haynes 230 were conducted in the air at 850 °C. Tests were performed with fully reversed axial strain control at a total strain range of 0.5%, 1.0% or 1.5% and hold time at maximum tensile strain for 3, 10 or 30 min. In addition, two creep-fatigue life prediction methods, i.e. linear damage summation and frequency-modified tensile hysteresis energy modeling, were evaluated and compared with experimental results. Under all creep-fatigue tests, Haynes 230 performed better than Inconel 617. Compared to the low cycle fatigue life, the cycles to failure for both materials decreased under creep-fatigue test conditions. Longer hold time at maximum tensile strain would cause a further reduction in both material creep-fatigue life. The linear damage summation could predict the creep-fatigue life of Inconel 617 for limited test conditions, but considerably underestimated the creep-fatigue life of Haynes 230. In contrast, frequency-modified tensile hysteresis energy modeling showed promising creep-fatigue life prediction results for both materials.
AB - Creep-fatigue testing of Ni-based superalloy Inconel 617 and Haynes 230 were conducted in the air at 850 °C. Tests were performed with fully reversed axial strain control at a total strain range of 0.5%, 1.0% or 1.5% and hold time at maximum tensile strain for 3, 10 or 30 min. In addition, two creep-fatigue life prediction methods, i.e. linear damage summation and frequency-modified tensile hysteresis energy modeling, were evaluated and compared with experimental results. Under all creep-fatigue tests, Haynes 230 performed better than Inconel 617. Compared to the low cycle fatigue life, the cycles to failure for both materials decreased under creep-fatigue test conditions. Longer hold time at maximum tensile strain would cause a further reduction in both material creep-fatigue life. The linear damage summation could predict the creep-fatigue life of Inconel 617 for limited test conditions, but considerably underestimated the creep-fatigue life of Haynes 230. In contrast, frequency-modified tensile hysteresis energy modeling showed promising creep-fatigue life prediction results for both materials.
UR - http://www.scopus.com/inward/record.url?scp=84866913754&partnerID=8YFLogxK
U2 - 10.1016/j.jnucmat.2012.08.040
DO - 10.1016/j.jnucmat.2012.08.040
M3 - Article
AN - SCOPUS:84866913754
SN - 0022-3115
VL - 432
SP - 94
EP - 101
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1-3
ER -