Grain refinement and Al-water reactivity of Al-Ga-In-Sn alloys

摘要: Abstract Al Ga In Sn alloys were prepared by using traditional casting metallurgy method with different additions of 5Ti 1B grain refiner. Their microstructures investigated means X-ray diffraction (XRD) and scanning electron microscope (SEM) energy dispersed (EDX). The grains are refined significantly from 129 μm to 57 μm increasing Ti content 0.03 wt% 0.24 wt%. Many thin dendrites that a few micrometers thick observed within grains. Al-water reactivities performed under water temperatures. alloy 0.12 wt% shows the maximum H2 generation rate temperatures, which is above 5 times Ti-free alloy. yields drop 87% 30% rising 0.24 wt% at temperature 30 °C, but they rise about 90% when 50 °C. growth mechanism effect refinement on discussed.