The effects of temperature and hydrogen charging on the impact loading behaviour of 90Cu–l0Ni (alloy CA 706, hot rolled and annealed) were investigated. Results showed that lower temperatures and hydrogen charging increased the amount of energy absorbed by the test specimens. Lowering the test temperature also increased the peak load sustained by the specimens. These observations are related to temperature and hydrogen effects on the physical properties of the two types of second phase particle which are present in this alloy.
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