Bülent tığ kimdir

Federal government websites often end in. The site is secure, bülent tığ kimdir. Clad rebar is one of the key structures of marine and construction services. Therefore, it is of great importance to acknowledge the mechanical property parameters of the composite region in the structural integrity evaluation of clad rebar.

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. While the tensile strength and corrosion resistance of the alloy increased both the grain refiner and the modifier added to the A alloy, a slight decrease in hardness was observed in the alloys to which only the modifier was added.

Bülent tığ kimdir

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Grain refinement of aluminum casting alloys

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Bülent tığ kimdir

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Interface structure of diffusion bonded duplex stainless steel and medium carbon steel couple. Geng D. Open in a separate window. Gao S. References Mondolfo LF. Regarding the hardening index, the relations are as follows [ 24 ]:. Metall Mater Trans A ;— Clad Rebars Rolling Process and Chemical Composition Clad rebars were researched in this study and were hot-rolled through 14 passes according to the hot-rolling process in a steel factory in Guangxi, China. 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 grain boundary structure of the poor carbon zone and the fusion boundary resulted from the process of hot rolling. Hundred years of precipitation hardening.

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Figure 9. It could be used to roughly obtain the basic mechanical properties of the composite region of clad rebar;. Keywords: clad rebar, composite region, structural integrity assessment, hardness, yield strength. Mater Res Express ;7. The experimental data are shown in detail in Table 5. The metallographic micro-structure of different base metals and stainless steel, and the hardness gradient curve of clad rebar are shown in Figure 7 and Figure 8. This was confirmed by the study of Yingying Feng et al. Kyriakos I. The metallographic sample was ground using an automatic grinding machine, the Shimadsu HMV-2T micro-hardness tester was used to take an indentation test. Table 4 Indentation diagonal length of numerical simulation under different yield stress. The total numbers of model units were 80,, the total numbers of sub-model units were 65,, finally, the sample and indentation head were assembled, the FEM model establishment was shown in Figure 6. Kurt B. Role of water chemistry and micro-structure in stress corrosion cracking in the fusion boundary region of an Alloy AB low alloy steel dissimilar weld joint in high temperature water.