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oai:www.ideals.illinois.edu:2142/85895 2023-07-11 col_2142_5131 col_2142_14837 com_2142_5130 com_2142_14836 com_2142_234

Stubbins, James F. Li, Meimei 2015-09-28T14:50:56Z 2015-09-28T14:50:56Z 10000-01-01 2003 2003 The fatigue performance of CuAl25 and CuCrZr and OFHC copper was also evaluated under creep-fatigue loading conditions. It was found that creep and stress relaxation have a major impact on fatigue behavior. Fatigue lives were reduced notably with hold time even at room temperature. Hold times are most damaging at low strain ranges and long fatigue lives. This effect was observed with hold periods as short as 10 seconds. Analysis revealed that the stress relaxation behavior during hold is comparable to transient creep behavior where dislocation glide is the dominant creep deformation mechanism. It was also determined that crack initiation and propagation at grain boundaries was accelerated under creep-fatigue loading conditions. Made available in DSpace on 2015-09-28T14:50:56Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3086117.pdf: 9738383 bytes, checksum: 6b63ebc5707642dab8d6d5937cc7c926 (MD5) Previous issue date: 2003 Embargo set by: Seth Robbins for item 87176 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 196 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003. http://hdl.handle.net/2142/85895 (MiAaPQ)AAI3086117 eng Engineering, Materials Science Fatigue and Fracture Behavior of High Strength and High Conductivity Copper Alloys for High Heat Flux Applications text Nuclear Engineering Nuclear Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.