Characterization of the Microstructures and Dynamic Recrystallization Behavior of Ti-6Al-4V Titanium Alloy through Experiments and Simulations

A study on hot deformation behavior of Ti-6Al-2V-0.5Zr-1.5Mo alloys

“…Despite the disappearance of the original structure, it can be seen that this high temperature has coarsened the dynamic recrystallization, and the dynamic recrystallization grains enjoy significant growth (see figure 5(d)). This is similar to the result given by Ji et al [13]. When the temperature is lower than 900 °C, the α phase is dominant.…”

“…Then much regression analysis was conducted on the flow stress value to work out the parameters at each strain. Figure 10 shows how variables , a n, Q, and InA changed with the strain, which can be expressed in equation (13). The square of the regression coefficient of each parameter is over 0.96, which means that the fitting effect is good.…”

“…In this paper, a Ti-6Al-2V-0.5Zr-1.5Mo alloy melted in a VAR furnace, which was produced by Yunnan Titanium Industry Co., LTD was used as the sample material, and the isothermal compression experiment was carried out by a Gleeble3500 thermal simulation test machine. Given the fact that titanium will undergo an allotropic transformation from α-Ti to β-Ti at 882.5 °C, based on the hot compression experiment of TC4 alloys conducted by Ji et al the experiment was carried out in the deformation temperature range of 800 °C-950 °C and the strain rates of 0.001-1 s −1 [13,14]. We also studied how deformation temperatures and deformation rates influenced the stress-strain curves and microstructure evolution of the alloy.…”

Molecular dynamics simulations of TC4 titanium alloy with mechanical property calculations after various heat treatments

“…1,2 Experimental studies have reported both mechanical properties and microstructure throughout its processing history. [3][4][5] Using a Gleeble thermal simulation testing machine, stress-strain curves can be measured from isothermal compression experiments. 4 For TC4 alloy processed by selective laser melting, its microstructure is qualitatively described as an acicular martensitic phase.…”

“…[3][4][5] Using a Gleeble thermal simulation testing machine, stress-strain curves can be measured from isothermal compression experiments. 4 For TC4 alloy processed by selective laser melting, its microstructure is qualitatively described as an acicular martensitic phase. 5 To go beyond a qualitative understanding of the structureproperty relationship, however, theoretical methods such as molecular dynamics (MD) simulations are required for quantitative calculation including the content of phases and the mechanical properties.…”