Effects of temperature and strain rate during hot compression of manganese aluminum bronze

摘要

Manganese Aluminum Bronze or MAB alloy has been extensively used for applications under sea water such as marine propellers because this alloy exhibits high strength as well as excellent corrosion resistance behavior. In this work, microstructures and hardness properties of an annealed MAB alloy after hot deformation at different temperatures of 973 K - 1123 K and strain rates between 0.1s~(-1) and 1 s~(-1) were investigated. During the tests, stress-strain responses of the alloy were determined, and effects of temperature and strain rate on the flow behavior of the MAB alloy were subsequently examined. Furthermore, microstructures of deformed MAB alloy were characterized by both optical microscopy and scanning electron microscopy. Effect of microstructure on stress-strain curves was illustrated for various forming conditions. The results showed at different temperature and strain was found dynamic recovery and dynamic recrystallization.