The low-cycle fatigue and fatigue-crack-growth behavior of HAYNES® HR-120 alloy. Chen, L. J., Liaw, P. K., McDaniels, R. L., & Klarstrom, D. L. Metallurgical and Materials Transactions A, 34(7):1451–1460, July, 2003. doi abstract bibtex The low-cycle fatigue and fatigue-crack-growth behavior of the HAYNES HR-120 alloy was investigated over the temperature range of 24°C to 980°C in laboratory air. The result showed that increasing the temperature usually led to a substantial decrease in the low-cycle fatigue life. The reduction of fatigue life could be attributed to oxidation and dynamic strain-aging (DSA) processes. The strain vs fatigue-life data obtained at different temperatures were analyzed. It was also found that the fatigue-crack-growth rate per cycle generally increased with increasing temperature and R ratio (R=σmin/σmax, where σmin and σmax are the applied minimum and maximum stresses, respectively). The relationship between the stress-intensity-factor range and fatigue-crack-growth rate was determined. Scanning-electron-microscopy (SEM) examinations of the fracture surfaces revealed that the fatigue cracks initiated and propagated predominantly in a transgranular mode.
@article{chen_low-cycle_2003,
title = {The low-cycle fatigue and fatigue-crack-growth behavior of {HAYNES}® {HR}-120 alloy},
volume = {34},
issn = {1543-1940},
doi = {10.1007/s11661-003-0257-z},
abstract = {The low-cycle fatigue and fatigue-crack-growth behavior of the HAYNES HR-120 alloy was investigated over the temperature range of 24°C to 980°C in laboratory air. The result showed that increasing the temperature usually led to a substantial decrease in the low-cycle fatigue life. The reduction of fatigue life could be attributed to oxidation and dynamic strain-aging (DSA) processes. The strain vs fatigue-life data obtained at different temperatures were analyzed. It was also found that the fatigue-crack-growth rate per cycle generally increased with increasing temperature and R ratio (R=σmin/σmax, where σmin and σmax are the applied minimum and maximum stresses, respectively). The relationship between the stress-intensity-factor range and fatigue-crack-growth rate was determined. Scanning-electron-microscopy (SEM) examinations of the fracture surfaces revealed that the fatigue cracks initiated and propagated predominantly in a transgranular mode.},
language = {en},
number = {7},
urldate = {2023-10-23},
journal = {Metallurgical and Materials Transactions A},
author = {Chen, L. J. and Liaw, P. K. and McDaniels, R. L. and Klarstrom, D. L.},
month = jul,
year = {2003},
keywords = {Cyclic Deformation, Fatigue, Fatigue Life, Material Transaction, Serrate Flow},
pages = {1451--1460},
}
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