TY - JOUR
T1 - The effects of fatigue on the atomic structure with cyclic loading in Zr 50Cu 40Al 10 and Zr 60Cu 30Al 10 Glasses
AU - Tong, Peng
AU - Louca, Despina
AU - Wang, G.
AU - Liaw, P. K.
AU - Maxey, E.
AU - Yokoyama, Y.
N1 - Funding Information:
The authors would like to acknowledge valuable discussions with S.J. Poon and M. Widom. Support for this work was provided by the National Science Foundation, Nos: 130398GA10715 and DMR 0231320. The use of the Advanced Photon Source was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
PY - 2012/8
Y1 - 2012/8
N2 - The potential damage effect from fatigue on Zr bulk metallic glass alloys of Zr50Cu40Al10 at the eutectic point and Zr60Cu30Al10 away from the eutectic point (in atomic percent) is examined via the local atomic structure, which was obtained from the pair density function analysis of the synchrotron X-ray radiation and neutron data. Samples cut from the same rods were subjected to 104, 105 , and 106 compression cycles ex situ, and the evidence for fatigue damage was investigated by comparing alloys before and after cyclic loading. Bond orientation was observed particularly in Zr50Cu40Al10, suggesting that fatigue damage occurs even in the elastic range, below the yield point, and during cyclic loading. The initiation of fatigue changes is observed first within small localized atomic regions.
AB - The potential damage effect from fatigue on Zr bulk metallic glass alloys of Zr50Cu40Al10 at the eutectic point and Zr60Cu30Al10 away from the eutectic point (in atomic percent) is examined via the local atomic structure, which was obtained from the pair density function analysis of the synchrotron X-ray radiation and neutron data. Samples cut from the same rods were subjected to 104, 105 , and 106 compression cycles ex situ, and the evidence for fatigue damage was investigated by comparing alloys before and after cyclic loading. Bond orientation was observed particularly in Zr50Cu40Al10, suggesting that fatigue damage occurs even in the elastic range, below the yield point, and during cyclic loading. The initiation of fatigue changes is observed first within small localized atomic regions.
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U2 - 10.1007/s11661-011-0887-5
DO - 10.1007/s11661-011-0887-5
M3 - Article
AN - SCOPUS:84864576659
VL - 43
SP - 2676
EP - 2679
JO - Metallurgical Transactions A (Physical Metallurgy and Materials Science)
JF - Metallurgical Transactions A (Physical Metallurgy and Materials Science)
SN - 1073-5623
IS - 8
ER -