... Copper alloys are found to experience a stress relaxation during holds at maximum tension and maximum compression during cyclic loading patterns. This stress relaxation response has an effect on fatigue life by reducing the numbers of cycles to failure, particularly in the high cycle fatigue...

... irradiation. microstructure neutron irradiation temperature variation effects copper copper alloys Journal of ASTM International, October 2004, Vol. 1, No. 9 Paper ID JAIl 1243 Available online at www.astm.org Takeo Muroga i and Hideo Watanabe 2 Microstructure Response in Copper and Copper Alloys...

... The effect of helium production during neutron irradiation on the high temperature tensile properties of copper and dispersion strengthened (DS) copper alloys was investigated in neutron-irradiated specimens containing different levels of boron. Sheet tensile specimens were irradiated...

... Dispersion strengthened (CuAl25) and precipitation hardened (CuCrZr) copper alloys are being considered as candidate materials for the first wall and divertor components of ITER. In the present work, the tensile and fracture resistance properties of CuAl25 and CuCrZr alloys and their joints...

... fast neutron irradiation experiment taking difference in the damage rate into account, the microstructural processes seem not to be a simple shift of temperature. copper copper alloys void swelling heavy ion irradiation transmutation irradiation correlation Takeo Muroga,~Takashi Matue,2...

... The effects of nickel and/or zinc addition on microstructural evolution in copper under electron irradiation have been investigated to study possible effects of solid transmutants generated in copper and copper alloys by fusion neutrons. Radiation-induced dislocation density increased...

... Various oxide-dispersion-strengthened copper alloys have been irradiated to 150 dpa at 415°C in the Fast Flux Test Facility (FFTF). The Al 2 O 3 -strengthened GlidCop™ alloys, followed closely by a HfO 2 -strengthened alloy, displayed the best swelling resistance, electrical conductivity...

... of the lighter isotope was related to surface derivatization or corrosion as measured by weight loss. sulfur isotopes sulfate-reducing bacteria (SRB) corrosion, mass spectrometry copper alloys seawater environmental scanning electron microscopy (ESEM) Brenda J. Little, 1 Patricia Wagner...

... or measurement of strain rate or potential, which are the major controlling parameters for a specific material-environment combination. stress-corrosion cracking (SCC) slow strain rate (SSR) chemical process industry (CPI) strain rate potential stainless steels nickel-base alloys copper alloys...

... the hardening behavior by blocking the transmission of dislocation slip bands, leading to a radiation-modified Hall-Petch relation between yield strength and grain size. Radiation-enhanced recrystallization can lead to softening of cold-worked copper alloys at temperatures above 300°C. neutron ion...

... effect appeared to be related primarily to overaging of the precipitates (radiation-enhanced recrystallization). copper alloys precipitation strengthened heavy irradiation radiation-enhanced recrystallization tension test Tatsuo Shikama, 1Frank A. Garner, 2Margaret L. Hamilton,2 and Kevin R...

... Dispersion-strengthened copper alloys have shown promise for certain high heat flux applications in both near-term and long-term fusion devices. This study examines mechanical properties changes and microstructural evolution in several oxide dispersion-strengthened alloys which were subjected...

... An irradiation series on copper alloys in the Fast Flux Test Facility (FFTF-MOTA) at about 450°C has been completed. Four exposure levels were reached, with the maximum at 98 dpa. Immersion density measurements of various copper alloys show swelling values ranging from 1 to 64% at 98 dpa. Minor...

... involved, tables representing the data collected, and the expectations for the future. Statue of Liberty corrosion atmospheric corrosion galvanic corrosion copper iron stainless steel copper alloys patina brochantite antlerite E. Blaine Cliver I and Robert Baboian 2 Life Expectancy...

... at the design stage. The distribution of cathodic protection has been analyzed within copper-alloy pipework attached to a steel hull, or to a small sacrificial anode, and also in a mixed-metal marine propulsion unit protected by zinc anodes. The cathodic electrode kinetics involved various combinations...

... that is based on resistance to ignition, self-extinguishing of burning, effect of oxygen pressure, and upward combustion rates. This ranking will assist qualified technical personnel in materials selection for high-pressure oxygen services. metals ignition oxygen nickel alloys copper alloys ferrous...

... and industrial applications. oxygen ignition ignition temperature oxygen compatibility gaseous tests pneumatic impact tests particle impact oil contamination flexible hoses manifolds PTFE stainless steels copper alloys Herve Barthelemy^ and Gerard Vagnard^ Ignition of PTFE-Lined Hoses...

... copper alloys seawater laboratory tests James E. Castle, ^ Anthony H. L. Chamberlain, ^ Bradley Garner, ^ M. Sadegh Parvizi, ^ and Abraham Aladjem^ The Use of Synthetic or Natural Seawater in Studies of the Corrosion of Copper Alloys REFERENCE: Castle, J. E., Chamberlain, A. H. L., Garner, B...

... Erosion-corrosion experiments have been carried out on tubular copper alloys in ASTM artificial seawater, using two recirculating flow systems. The results showed that the order of resistance to erosion-corrosion of the alloys was correct, but the values of the critical breakaway flow velocities...

... are also observed for Al-4.5Zn-2.5Mg in under-aged, peak-aged, and over-aged conditions; these are most pronounced for the under-aged alloy, where slip is planar. fatigue cyclic-hardening copper alloys aluminum alloys stainless steel A. C. Pickard^ and J. F. Knotf Effects of Testing Method...