Temperature Anomaly of Work Hardening in Cu2NiZn

ABSTRACT Cu2NiZn shows an anomalous temperature dependence of the workhardening due to severe (100) cross-slip. A maximum occurs near 375 K. The samples with cube-type domains do exhibit this effect more exclusively than the samples with a more isotropic type of domain structure. In this respect Cu2NiZn behaves more like Cu3Au with a similar peak near 350 K than like Ni3Fe or Ni3Mn, two alloys which do not show such an anomaly at all.