Overview Of Heat Treatment Of Titanium Rods

Titanium metal processing constitutes a titanium bar metal element titanium alloy. It is a kind of comprehensive function good Ti-Al-Sn-Zr-Mo-W-Si alloy system a + β-type hot strong titanium alloy. It has both the high thermal strength of TA2 alloy and the thermal stability of TA1 alloy, and is suitable for long-time work at 500 ~ 550°C. It is also suitable for long-time work at 50O°C or below.

The working time can reach 6000h below 50O° C, and 3000h at 550° C. Therefore, TC4 titanium alloy is the ideal heat-strengthened titanium alloy for the engine. The alloy can be machined into titanium forgings, titanium rods, drop-forged parts and other forms.
Unity - solid solution temperature, air-cooled than furnace-cooled microstructure the finer. Solid solution temperature is above the phase transition temperature, air-cooled than the furnace-cooled room temperature strength is higher, but the impact toughness and plasticity indicators do not change much. Phase change temperature in the solid solution temperature above, a unified solid solution temperature under the air-cooled than furnace-cooled room temperature strength is slightly higher, impact toughness and section shrinkage is much higher, elongation does not change much, but the yield strength is slightly decreased. High-temperature strength following the cooling rate of progress and show a slight trend of progress, plasticity indicators change is not significant. Select the solid solution temperature is 30 ~ ~ 40 ° C below the phase transition point, insulation 2h air cooling +550 ° C, 6h air cooling heat treatment track, can guarantee the alloy plasticity and strength of a good match.