A kind of preparation method of 550 ℃ ~ 650 ℃ high temperature titanium alloy foil

Abstract

A method for preparing a high-temperature titanium alloy foil at 550°C to 650°C, specifically: (1) heating a high-temperature titanium alloy ingot at 1100°C to 1200°C and then forging to obtain a blank; Rolling after heating; (3) water quenching and cooling to room temperature after heat treatment at 50°C to 70°C above the β transformation point to obtain a slab; (4) rolling at 950°C to 1000°C; (5) Assembling and welding the obtained billets to obtain clad rolling ladles; (6) heating the lamination ladles at 950°C to 1000°C, and then rolling; (8) After heating the ladle at 900°C to 950°C, roll it perpendicular to the previous rolling direction; (9) annealing, creep correction, alkali pickling and After sanding, obtain a plate with a thickness of 0.6mm; (10) cut the plate and perform 7 to 25 times of cold rolling to obtain a rolled foil with a thickness of 0.08mm to 0.2mm; (11) perform vacuum annealing heat treatment, A finished foil material with a thickness of 0.08mm-0.2mm is obtained.

Description

A kind of preparation method of 550 ℃~650 ℃ high temperature titanium alloy foil technical field [0001] The present invention belongs to the technical field of titanium alloy material processing, in particular to a 550 ℃~650 ℃ high temperature titanium alloy foil material preparation method. Background technique [0002] 550 ℃ ~ 650 ℃ high temperature titanium alloy is mainly used in the high temperature of aero engines and aerospace hypersonic vehicles. structural components. At present, my country's self-developed high-temperature titanium alloys include TA32, TA33 and Ti65 titanium alloys, which can be used for a long time. 550 ℃, 600 ℃ and 650 ℃ respectively, the above high temperature titanium alloy plates have been used in aero-engines and supersonic aircrafts The thermal structure components such as the cylinder, body, and wings. [0003] The high temperature bearing structure of the high temperature titanium alloy foil with a temperature of 550 ° C to 650 ° C ...

AI Technical Summary

Problems solved by technology

[0004] Existing patents at home and abroad rarely involve the preparation process and method of high-temperature titanium alloy foils at 550°C to 650°C. The demand is becoming more and more urgent. It not only requires high-temperature titanium alloy foil to have good formability, but also requires high tensile strength at room temperature and high temperature (550 ° C ~ 650 ° C)