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In this study, the effect of Al5Ti1B grain refiners and Al10Sr modifiers on the mechanical and corrosion properties of the A aluminum alloy was investigated. For this purpose, varying amounts of Al5Ti1B grain refiner and Al10Sr modifier were added to the molten A alloy and the molten metal was poured into a per-manent mold. Subsequently, microstructural investigations, hardness test, tensile strength and corrosion resistance of the samples were examined. The results showed that, the Al5Ti1B grain refiner promotes finer-grained and coaxial solidifi-cation. The Al10Sr modifier, broke down the eutectic particles in the microstruc-ture and caused a more homogeneous distribution in the structure.
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The experimental data are shown in detail in Table 5.
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Mudhaffar et al. Appl Eng Lett ;— Effects of strontium addition on the microstructure and corrosion behavior of A aluminum alloy. Comparative study of microstructure evaluation and mechanical properties of aluminum alloy fabricated by wire-based additive manufacturing. Fei H. Engineering practices on surface damage inspection and performance environmental corrosion. Mater Res Express ;a2. A Taguchi optimisation for production of Al—B master alloys using boron oxide. Nevertheless, the accurate mechanical parameters of materials are significant basic data for the integrity evaluation of actual engineering structures [ 4 , 5 , 6 ]. The process effectively solved the interface oxidation problem of billet during heating and rolling, however, the production cost was high. Abstract Clad rebar is one of the key structures of marine and construction services. The fitting curves of microhardness and strength in each region of the non-uniform mechanical properties were obtained using the FEM numerical simulation and indentation test, as shown in Figure The micro-hardness test was carried out to obtain the hardness gradient curve along the LSS to the carbon steel side to investigate the mechanical properties of the composite region between different kinds of carbon steel and stainless steel.
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Moreover, this region becomes the dilution zone. Effect of grain refining and Sr-modification interactions on the impact toughness of Al—Si—Mg cast alloys. Arch Foundry Eng ;— J Light Met ;— The indentation results show that the diagonal length of the indentation is directly proportional to the indentation pressure, and the results of the hardness experiments and FEM fit well. Furthermore, the hardness of FEM and a physical test were well-fitted. The common dimension systems were as shown in Table 2. Daniel G. Yu et al. Revealing the relationship between grain size and corrosion rate of metals. The experiment loads were applied on 0. Since no obvious yield platform appeared in the tensile curve of austenitic stainless steel, the specified non-proportional tensile strength R P0.
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