نتایج جستجو برای: hp nb cast heat resistant steel
تعداد نتایج: 512848 فیلتر نتایج به سال:
Avoiding particle entrapment into the solidifying shell of a steel continuous caster is important to improve quality of the continuous cast product. Therefore, the fluid flow dynamics in the steel melt and mushy zone, heat transfer and solidification of the steel shell, as well as the motion and entrapment of inclusion particles during the casting process were investigated using computational m...
Aiming at developing a dental titanium alloy with better mechanical properties and machinability than unalloyed titanium, a series of Ti-Nb alloys with Nb concentrations up to 30% was made. They were cast into magnesia-based molds using a dental casting machine and the mechanical properties and grindability of the castings were examined. The hardness of the alloys with Nb concentrations of 5% a...
A finite-element model has been developed to predict the evolution of temperature, stress, and shape of 10-mm diameter molten steel droplets solidifying against a water-cooled copper chill plate. The elastic-viscoplastic stress model accounts for thermal linear expansion / contraction behavior, creep, and phase transformations that vary with carbon content. Thermal contraction causes the quench...
We report the annealing effects on the magnetic properties of Cu-17vol.% Nb micro-composites. Samples prepared by bundling and drawing process with different deformation degree and subsequent vacuum heat treatment. The Cu-Nb interface structural change due to mostly the recrystallization and coarsening of the Nb filaments. The magnetic properties caused by the proximity effect and the Cu-Nb int...
In this study the microstructure and mechanical properties of super duplex stainless steel UNS S32750 welding was studied. For this purpose, the method of gas tungsten arc and filler metal AWS ER2594 with a diameter of 4.2 mm was used. In order to investigate the microstructure light microscopy and electron microscopy equipped with backscatter electron diffraction were used. Mechanical properti...
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