Grain refinement and eutectic modification of A356 casting alloy by adding Al-B-Sr master alloys and its effect on tensile properties
نویسندگان
چکیده
Abstract The effects of the grain refinement and eutectic Si modification on tensile properties by using Al-B-Sr master alloys in A356 cast alloy were investigated. Two different alloys, Al-4%B-1%Sr (4B1Sr) Al-3%B-3%Sr (3B3Sr), developed. In microstructure observation, consisted AlB 2 , SrB 6 AlSrF, KAlF 4 Al Sr compounds. It should be noted that α-Al phase also exists two alloy. result showed area fraction 4B1Sr was higher than 3B3Sr has better efficiencies α -Al alloy, grains are refined from 3035 to 312 μ m is modified acicular fibrous morphology. wt% treated with UTS elongation compared
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ژورنال
عنوان ژورنال: Materials research express
سال: 2022
ISSN: ['2053-1591']
DOI: https://doi.org/10.1088/2053-1591/ac99c1