The cyclic hardening and saturation behaviour of copper single crystals
作者： H. Mughrabi
DOI: 10.1016/0025-5416(78)90174-X
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摘要: An experimental study has been performed on the cyclic deformation of copper single crystals at constant plastic resolved shear-strain amplitudes, γpl, over a range 1.55 × 10−5 < γpl 2 10−2. The increase (initial) hardening rates with increasing is attributed to change in work-hardening mechanisms responsible. Similarities unidirectional stage I and II low high respectively, are pointed out. The dependence saturation shear stresses τs, (cyclic stress-strain curve) reveals three regimes saturation. dominant intermediate “plateau” regime extends about two decades γpl(6 7.5 10−3) more homogeneous. Primary slip dominates secondary becomes pronounced only higher γpl.
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sci-hub.se 参考文章(47)
D.S Kemsley, M.S Paterson, The influence of strain amplitude on the work hardening of copper crystals in alternating tension and compression Acta Metallurgica. ,vol. 8, pp. 453- 467 ,(1960) , 10.1016/0001-6160(60)90032-8
S. J. Basinski, Z. S. Basinski, A. Howie, Early stages of fatigue in copper single crystals Philosophical Magazine. ,vol. 19, pp. 899- 924 ,(1969) , 10.1080/14786436908225856
P. O. Kettunen, U. F. Kocks, Cyclic hardening of copper single crystals Czechoslovak Journal of Physics. ,vol. 19, pp. 299- 314 ,(1969) , 10.1007/BF01712867
W.A Wood, S.McK Cousland, K.R Sargant, Systematic microstructural changes peculiar to fatigue deformation Acta Metallurgica. ,vol. 11, pp. 643- 652 ,(1963) , 10.1016/0001-6160(63)90002-6
P. Lukáš, M. Klesnil, J. Krejčí, P. Ryš, Substructure of Persistent Slip Bands in Cyclically Deformed Copper physica status solidi (b). ,vol. 15, pp. 71- 82 ,(1966) , 10.1002/PSSB.19660150105
W. N. Roberts, Persistent slip bands in fatigued copper Philosophical Magazine. ,vol. 20, pp. 675- 686 ,(1969) , 10.1080/14786436908228036
J.M Roberts, D.M Barnett, Nonelastic strain recovery of copper single crystals after small prestrains Acta Metallurgica. ,vol. 13, pp. 1027- 1029 ,(1965) , 10.1016/0001-6160(65)90016-7
J. C. Grosskreutz, The mechanisms of metal fatigue (I) Physica Status Solidi B-basic Solid State Physics. ,vol. 47, pp. 11- 31 ,(1971) , 10.1002/PSSB.2220470102
K.U Snowden, Dislocation arrangements during cyclic hardening and softening in A1 crystals Acta Metallurgica. ,vol. 11, pp. 675- 684 ,(1963) , 10.1016/0001-6160(63)90005-1
P. J. Woods, Low-amplitude fatigue of copper and copper-5 at. % aluminium single crystals Philosophical Magazine. ,vol. 28, pp. 155- 191 ,(1973) , 10.1080/14786437308217440