Effects of Al-5Ti-1B Master Alloy on Microstructure and Mechanical Properties of ZL107
Effects of Al-5Ti-1B master alloy in which the content was difference on microstructure and mechanical properties of ZL107 alloy were investigated.The experimental results show that Al-5Ti-1B master alloy can obviously refine grain size of the alloy.The average diameters of dendrite α-Al grain is best and the mechanical properties of the alloy refined by 0.20wt% Al-5Ti-1B reached to the highest level.The microstructure and mechanical properties of the alloy can be further improved by T6 treatment.The main reason is that the TiA13 and TiB2 particle with different mechanism act as heterogeneous nucleus.