Stress corrosion cracking susceptibility of ultra-fine grain copper produced by equal-channel angular pressing

Yamasaki, Takashi; Miyamoto, Hiroyuki; Mimaki, Takuro; Vinogradov, Alexei; Hashimoto, Satoshi

doi:10.1016/s0921-5093(01)01332-6

Cited by 44 publications

(33 citation statements)

References 12 publications

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“…What is important is that not only the monotonic or fatigue strength can increase remarkably with grain refinement down to the sub-micrometer scale, but the resistance to general corrosion [15], and stress corrosion cracking [16] can also increase due to better homogeneity of the microstructure after SPD. In application to magnesium alloys, Aung et al [17] have demonstrated quite convincingly that the corrosion rate reduced significantly with decreasing grain size.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Fatigue of Fine Grain Mg-Zn-Zr and Mg-Y-Zn Alloys

Linderov

Васильев

Мерсон

et al. 2017

Metals

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Corrosion fatigue data for magnesium alloys are still scarce. The present communication reports the results of microstructural investigations and fatigue testing of the fine grain Mg-Zn-Zr (ZK60) alloy after multiaxial isothermal forging and of the hot extruded Mg-Y-Zn (WZ21) alloy in air and in the 0.9% NaCl water solution. Both of the alloys demonstrate a very good high-cycle fatigue performance in air. However, the significant drop of fatigue resistance is observed in the corrosive environment. Results are discussed from perspectives of potential applications and future studies.

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Section: Introductionmentioning

confidence: 99%

Corrosion Fatigue of Fine Grain Mg-Zn-Zr and Mg-Y-Zn Alloys

Linderov

Васильев

Мерсон

et al. 2017

Metals

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“…The SCC susceptibility of UFG or nanostructured materials has been far less studied and much remains to be explored [20][21][22][23][24][25][26][27][28][29][30][31]. One limitation of SCC studies of SPD materials is that structural materials that exhibit SCC are generally highstrength alloys such as austenitic stainless steels and Cu-Zn alloys, which are difficult to process by SPD.…”

Section: Introductionmentioning

confidence: 99%

Effect of Grain Size on the Stress Corrosion Cracking of Ultrafine Grained Cu-10 wt% Zn Alloy in Ammonia

Asabe

Rifai

Yuasa

et al. 2017

International Journal of Corrosion

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The effect of grain size in the micron to submicron range on the stress corrosion cracking (SCC) of Cu-10 wt% Zn alloys was investigated using constant-load tests in ammonia vapor. The grain size was systematically varied from 4 m to 0.12 m by either cold-rolling or equal-channel angular pressing (ECAP), followed by annealing. The time to fracture increased with decreasing grain size above 1 m but then began to decrease with decreasing grain size into the submicron range. This inverse trend in the submicron range is discussed in terms of a severe plastic deformation-(SPD-) induced ultrafine grain microstructure.

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“…They showed that the corrosion current of ECAPed copper in Hanks solution is higher than that of the coarse-grained copper 14 . Yamasaki et al 23 investigated the stress-corrosion cracking (SCC) of the ultra-fine grain copper produced by ECAP method in 1 M NaNO 2 aqueous solution. They found that the UFG copper possesses notably better resistance to SCC when compared to its coarse-grain counterpart 23 .…”

Section: Introductionmentioning

confidence: 99%

“…Yamasaki et al 23 investigated the stress-corrosion cracking (SCC) of the ultra-fine grain copper produced by ECAP method in 1 M NaNO 2 aqueous solution. They found that the UFG copper possesses notably better resistance to SCC when compared to its coarse-grain counterpart 23 . Miyamoto et al 15 reported that the UFG copper exhibited a lower corrosion current incomparison with that inits recrystallized coarsegrain (CG) counterpart in Livingstone etchant 15 .…”

Section: Introductionmentioning

confidence: 99%

Effect of grain size changes on corrosion behavior of copper produced by accumulative roll bonding process

et al. 2013

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The effect of changes in grain size on corrosion resistance of the pure tough pitch copper stripwas investigated in acidic and alkaline NaCl solutions. Accumulative roll bonding as sever plastic process was applied up to 8 cycles to produce the ultrafine graincopper. Polarization and electrochemical impedance tests were used for corrosion resistance investigations. Corrosion morphologies were analyzed by FE-SEM. Results showed that the corrosion resistance decreased up to cycle 2 and increased after rolled for the fourth time due to UFG grain formation after cycle 4. The corrosion degradation in cycle 8 was uniformand it was more intergranular for the sample of cycle 2 and the unrolled counterpart.

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Stress corrosion cracking susceptibility of ultra-fine grain copper produced by equal-channel angular pressing

Cited by 44 publications

References 12 publications

Corrosion Fatigue of Fine Grain Mg-Zn-Zr and Mg-Y-Zn Alloys

Corrosion Fatigue of Fine Grain Mg-Zn-Zr and Mg-Y-Zn Alloys

Effect of Grain Size on the Stress Corrosion Cracking of Ultrafine Grained Cu-10 wt% Zn Alloy in Ammonia

Effect of grain size changes on corrosion behavior of copper produced by accumulative roll bonding process

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