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Titanium alloy beta-phase high-temperature solid solution structure simulation method based on remainder's theory
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An analog method, titanium alloy technology, applied in the direction of electrical digital data processing, computer material science, instruments, etc., can solve limitations and other problems
Active Publication Date: 2021-09-10
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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[0003]
The purpose of the present invention is to provide a method for simulating titanium alloy β-phase high-temperature solid solutionstructure based on Yu's theory, which can realize structure simulation and grain size measurement on a computer, and realize optimal matching between titanium alloy composition-preparation process-structure , which solves the problem of limitations in the research on the structure and properties of titanium alloys in the prior art
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example 2
[0060] Example 2: Take the microstructure simulation of TC4 alloy at 1050°C for 0.5h as an example.
[0061] According to steps 1-4 in Application Example 1, the number of atomic cluster nucleation points of TC4 alloy was calculated (regardless of temperature).
[0062] Use the calculation results of steps 1-4 and formula (3) to calculate the number of nucleation points in the cell space of 50×50 in the solid solution of TC4 alloy at 1050 °C, that is, S β-Ti-Al-Fe , 11:S β-Ti-Al =, 312; S β-Ti-Fe =, 5; S β-Ti-Al-V , 129; S β-Ti-V , 34, where K is 1313.
[0063] Input the number of nucleation points in step 2 of this example into the computer program, and the simulated tissue is more consistent with the actual tissue when the calculation step is 1295, see Figure 2a-2d . According to the scale of 14.6667:446.299, the simulated tissue size is 669.4470 μm; the actual tissue is 825.0845 μm, and the simulated size error is 11.69%.
example 3
[0064] Example 3: Take the microstructure simulation of TC4 alloy at 1100°C for 0.5h as an example.
[0065] According to steps 1-4 in application example 1, the number of atomic cluster nucleation points of TC4 alloy can be calculated (regardless of temperature).
[0066] Using the calculation results of steps 1-4 and formula (3) to calculate the number of nucleation points in 50×50 in the cell space of TC4 alloy in solid solution at 1100 °C, that is, S β-Ti-Al-Fe , 10; S β-Ti-Al ,301;S β-Ti-Fe , 5; S β-Ti-Al-V ,=124; S β-Ti-V , 33.
[0067] Input the number of nucleation points in step 2 of this example into the computer program, and the simulated tissue is more consistent with the actual tissue when the calculation step is 1216, see Figures 3a-3d . According to the scale of 14.6667:446.299, the simulated tissue size is 745.5205 μm; the actual tissue is 825.0845 μm, and the simulated size error is 9.64%.
[0068] The present invention also includes a device used in t...
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technical field [0001] The invention belongs to the field of titanium alloy structure simulation, in particular to a method for simulating high-temperature solid-solution structure of titanium alloybeta phase based on Yu's theory. Background technique [0002] Titanium and titanium alloys have properties such as high specific strength, corrosion resistance, good biocompatibility, and excellent high temperature stability, and are widely used in aerospace, chemical industry, ships, biomedical and other fields. much attention. At present, physical metallurgical models, neural networks, cellular automata, and phase field simulations are widely used in the simulation of iron and steel alloy structures. It is still difficult to be widely used in titanium alloys, so the research on microstructuresimulation methods in titanium alloys is still not in-depth. In addition, there is no relevant report on the microstructure simulation of titanium alloy based on Yu's theory. Contents...
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