Mechanical properties of TA1 titanium plate!
TA1 titanium plate heat treatment: generally used in the annealed state. The recommended annealing time is 670-720, 0.5-2h; The stress relieving annealing criteria are 530-550 ℃, 0.5-1h or 470-490 ℃, 2-4h.
TA1 titanium electrode connection: argon maintenance arc is widely used, and plasma welding, resistance welding, gas maintenance Diffusion welding, etc. can also be used.
TA1 titanium alloy uses: mechanical equipment heat exchangers, golf balls, medical equipment, and other aspects.
TA1 metallographic process:
(1) After 4 rounds of mechanical polishing and corrosion, an industrial pure titanium TA1 microstructure with deformation free twinning can be obtained.
(2) When the electrolyte is perchloric acid+glacial acetic acid (volume ratio 6:94), voltage is 60V, and polishing time is 14s, the deformation layer of industrial pure titanium TA1 can be completely removed, resulting in a true microscopic arrangement.
(3) Electrolytic polishing has a shorter time and higher efficiency compared to mechanical polishing, resulting in better quality microscopic arrangement tracing images.
TA1 high-temperature wear resistance:
(1) Due to the smooth effect of surface oxide skin and debris, the conflict factor with an oxide layer is smaller, and the conflict factor at 500-700 ℃ ranges from 0.07 to 0.22. As the temperature increases, the conflict factor increases; Under the same load and wear time, the conflict factor without oxide layer is significantly higher, and the conflict factors at 500~700 ℃ are 0.74~0.65, respectively. As the temperature increases, the conflict factor decreases.
(2) After the conflict wear test, the higher the temperature of the sample with oxide layer, the more the distribution of furrows formed by hard abrasive cutting is described; For samples without oxide layer, as the temperature increases and the grinding time prolongs, cracks are more likely to propagate and form delamination wear.
(3) The primary wear modes of TA1 titanium are delamination wear, adhesion wear, and oxidation wear. Materials without oxidation layers lack high hardness oxygen rich materials α The layer has lower hardness and plastic shear resistance, and the tear zone becomes denser at higher temperatures, resulting in more severe adhesive wear. The difference in surface hardness and wear mechanism leads to the difference in conflicting wear performance at high temperatures.
