Fig 6.
Surface topography of the Cu-based foils before and after accelerated ageing: (a) Cu R, (b) aged Cu R, (c) Cu R+A, (d) aged Cu R+A, (e) Cu15Zn, (f) aged Cu15Zn, (g) Cu18Ni20Zn, (h) aged Cu18Ni20Zn.
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