TA18 titanium alloy rod ta18 titanium rod high precision rod
processing high wear resistant round steel.
TA18 titanium alloy is an α-β type titanium alloy with good
comprehensive mechanical properties and corrosion resistance. It is
widely used in aerospace, chemical industry, medical and other
fields.
Its chemical composition mainly includes titanium (Ti), aluminum
(Al), vanadium (V) and iron (Fe). The typical composition is as
follows: titanium about 89%-90%, aluminum about 5.5%-6.5%, vanadium
about 3.5%-4.5%, iron ≤0.3%, and also contains a small amount of
impurities such as oxygen, nitrogen, and hydrogen.
| Ti | Al | V | Fe | O | N | H | C |
| 89% and 90% | 5.5% to 6.5% | 3.5% to 4.5% | ≤ 0.3% | ≤ 0.15% | ≤ 0.05% | ≤ 0.015% | ≤ 0.08% |
Mechanical properties
TA18 titanium alloy has high tensile strength. After cold working
and heat treatment, it can reach the level of 830 MPa-900 MPa, the
yield strength is between 620 MPa-710 MPa, and the elongation is
generally 15%-20%, showing good plasticity.
. In high temperature environment, the strength and toughness of
TA18 alloy change little, which is suitable for high temperature
structural parts.
Application fields
Aerospace: TA18 titanium alloy is often used in key components
such as aircraft engine blades and high-pressure gas cylinders due
to its high strength, low density and excellent high temperature
resistance to ensure stable operation under extreme conditions.
Chemical and marine engineering: TA18 titanium alloy exhibits
excellent corrosion resistance in strong acid, strong alkali and
seawater environments, and is suitable for core components in
chemical equipment, seawater desalination equipment, petrochemical
equipment and deep-sea oil and gas extraction.
Medical field: TA18 titanium alloy is widely used in implants in
the human body such as orthopedic screws, joint replacement parts,
etc. due to its good biocompatibility, providing sufficient
strength and wear resistance.
Research progress and challenges of TA18 titanium alloy
Although TA18 titanium alloy has many advantages, its high
production cost and poor processing and welding properties of the
alloy are still the main factors limiting its wide application. In
recent years, researchers have conducted a lot of exploration on
these issues, aiming to improve its process performance and broaden
its application scope.
Material optimization and new processing technologies
At present, research on TA18 titanium alloy mainly focuses on alloy
composition optimization and improvement of processing technology.
By adjusting the contents of aluminum and iron and introducing
trace elements (such as molybdenum, vanadium, etc.), its mechanical
properties and corrosion resistance can be significantly improved.
New processing methods, such as laser additive manufacturing (3D
printing technology) and superplastic forming technology, are also
widely used in the manufacturing of TA18 titanium alloy. These
technologies can reduce production costs and improve processing
efficiency while ensuring material performance.
Breakthrough in welding technology
The welding performance of TA18 alloy is poor, and traditional
welding methods often lead to a significant decrease in performance
in the alloy joint area. Therefore, the development of efficient
welding technology suitable for TA18 alloy has become one of the
current research hotspots. High-energy beam welding technologies
such as laser welding and electron beam welding are considered to
be effective ways to improve the welding quality and production
efficiency of TA18 alloy.
Surface treatment and coating technology
The oxidation resistance of TA18 alloy will decrease at high
temperatures. Therefore, enhancing its high temperature resistance
through surface treatment technology has become an important
research direction. In recent years, methods such as coating
technology, anodization treatment and laser surface alloying have
been applied to the surface treatment of TA18 alloy, which has
significantly improved its corrosion resistance and oxidation
resistance at high temperatures.
Conclusion
TA18 titanium alloy has shown great application potential in
aerospace, chemical industry, marine engineering and other fields
due to its excellent mechanical properties, corrosion resistance
and high temperature resistance. Although its production cost is
high and there are certain challenges in processing and welding
performance, with the emergence of new processing technologies and
in-depth research on material optimization, the application
prospects of TA18 alloy are still broad. In the future, through
multidisciplinary collaborative innovation, TA18 titanium alloy is
expected to play an important role in more fields and promote the
development and application of high-performance materials.
