Overview of fatigue performance of Cu processed by severe plastic deformation. Agnew, S. R.; Vinogradov, A. Y.; Hashimoto, S.; and Weertman, J. R. Journal of Electronic Materials, 28(9):1038–1044, September, 1999.
Overview of fatigue performance of Cu processed by severe plastic deformation [link]Paper  doi  abstract   bibtex   
This study investigates discrepancies regarding cyclic softening of Cu processed by severe plastic deformation (SPD). All samples softened if the microhardnesses before and after fatiguing are compared. However, the effect decreases if the strain amplitude is small, Δεp \textless1 × 10−3). Samples with equiaxed subgrains were more resistant to softening and thermal recovery. All samples had “persistent” shear bands except those tested at the highest amplitudes, Δεp \textgreater1 × 10−2. Cu processed by SPD exhibits an enhanced fatigue life at low amplitudes. However, low thermal stability, potential for softening, and poor low-cycle properties discredit this advantage.
@article{agnew_overview_1999,
	title = {Overview of fatigue performance of {Cu} processed by severe plastic deformation},
	volume = {28},
	issn = {0361-5235, 1543-186X},
	url = {http://link.springer.com/article/10.1007/s11664-999-0181-0},
	doi = {10.1007/s11664-999-0181-0},
	abstract = {This study investigates discrepancies regarding cyclic softening of Cu processed by severe plastic deformation (SPD). All samples softened if the microhardnesses before and after fatiguing are compared. However, the effect decreases if the strain amplitude is small, Δεp {\textless}1 × 10−3). Samples with equiaxed subgrains were more resistant to softening and thermal recovery. All samples had “persistent” shear bands except those tested at the highest amplitudes, Δεp {\textgreater}1 × 10−2. Cu processed by SPD exhibits an enhanced fatigue life at low amplitudes. However, low thermal stability, potential for softening, and poor low-cycle properties discredit this advantage.},
	language = {en},
	number = {9},
	urldate = {2016-02-26},
	journal = {Journal of Electronic Materials},
	author = {Agnew, S. R. and Vinogradov, A. Yu and Hashimoto, S. and Weertman, J. R.},
	month = sep,
	year = {1999},
	keywords = {Characterization and Evaluation of Materials, copper, Cyclic softening, Electronics and Microelectronics, Instrumentation, Fatigue, Optical and Electronic Materials, persistent slip bands, Severe plastic deformation, shear bands, Solid State Physics and Spectroscopy, Ultrafine grain},
	pages = {1038--1044},
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}
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