Medical titanium alloy microstructure and properties of aging state

Titanium and baoji titanium industry alloy high strength , high corrosion resistance, low elastic modulus and excellent biocompatibility , the alloy is widely used in medical areas :

orthopedics for the manufacture of a variety of artificial joints, bone and other internal and external fixation devices ; dentistry for the manufacture of dentures, fillings ,

implants , orthopedic wire and various adjuvant therapy equipment. Ti-28Nb-13Zr-0.5Fe ( referred TNZF alloy ) is specially designed for the manufacture of body implants
metastable β titanium foil for sale alloy , the researchers on the microstructure and properties of the alloy aging state were studied. To study the effect of biocompatible alloy phase
change during aging , researchers will forge a sample solution treated at 850 ℃ + water quenching , and then 350 ℃, 450 ℃ and 550 ℃ aged 2 to 6 hours

Medical titanium bar

Medical titanium bar

Medical grade titanium alloy implants in the human body for medical devices, prostheses or artificial organs and adjuvant therapy equipment.
Mainly titanium 6 aluminum 4 vanadium, titanium, aluminum 5 2.5 Sn, medical titanium  aluminum 4 vanadium alloy. They have high specific strength and mechanical properties close to human bones, strength is far superior to titanium, also has anti-fatigue, excellent corrosion resistance and biocompatibility characteristics.Medical titanium bar Widely used in a variety of artificial joints, artificial bone, bone fixation devices, dentures, dental inlay, fixed bridges.

Titanium and titanium alloys in the aviation and aerospace

Titanium and titanium alloys in the aviation and aerospace

    titanium grade 1 and its alloys specific strength (strength to weight ratio) in the metal structural materials is very high, its strength and steel equivalent, but its weight is only 57% of the steel. In addition, the heat resistance of titanium and its alloys are strong, in the atmosphere of 500 ℃ can still maintain good strength and stability, but also short-term operating temperature even higher. The aluminum 150 ℃, stainless steel at 310 ℃ to lose their mechanical properties. When the aircraft, missiles, rockets flying at high speed, the engine and the surface temperature is very high, aluminum was not competent, then, using titanium is very appropriate. It is because when titanium and its alloys have high strength, light weight, high heat resistance of the overall excellent performance, aircraft used in it instead of other metals, not only prolong the life of the aircraft, but also reduce its weight, thereby greatly improve its flight performance. Therefore, titanium is one of the structural materials in the aviation industry and the universe's most promising industries.

  

    titanium grade 2 and its alloys are mainly used in the aviation industry, the manufacture of aircraft engine and airframe. Generally, aircraft Mach number less than 2, the engine uses a portion of titanium and its alloys, aluminum alloy body in general. Mach 2 is equal to the aircraft, its engine to increase the amount of titanium and titanium fuselage section required. Greater than Mach 3.5 aircraft, the engine inlet temperature is very high, can not be used titanium and superalloys required, but significantly increased the amount of its body with titanium.

     Titanium and its alloys also have good low temperature performance, even at ultra-low temperature -250 ℃, and it still has a high impact strength, high pressure, anti-vibration, therefore, titanium and its alloys in rockets, missiles and spacecraft not only for the manufacture of the engine casing and structural components, and for the manufacture of pressure vessels, such as high-pressure gas cylinders, cryogenic liquid fuel tanks.

Commercially pure titanium in the chemical field

Commercially pure titanium pipe in the chemical field

    titanium metal has excellent corrosion resistance and mechanical properties, is widely used in many departments. In particular chemical applications, can be used instead of stainless steel with titanium as a corrosion-resistant material, which extend the life of equipment, reduce costs, prevent pollution and improve productivity and so has a great significance. In recent years, China's chemical industry by expanding the scope of titanium, the amount increases every year, titanium has become one of the major chemical equipment corrosion resistant materials. Titanium as a chemical plant in a corrosion-resistant structural materials for chemical equipment has become an ideal material.
Chlor-alkali industry
     Chlor-alkali industry is an important basic raw material industry, a great impact on their production and development of the national economy. This is because the titanium chloride for superior corrosion resistance of stainless steel and other non-ferrous metals used. Chlor-alkali industry is currently widely used to produce titanium metal anodes, ion-exchange membrane electrolyzer, wet chlorine cooler, refined salt water preheater tower dechlorination, chlorine wash cooling tower. The main components of these devices in the past to use more non-metallic materials (such as graphite, polyvinyl chloride, etc.), due to the mechanical properties of non-metallic materials, thermal stability and processing performance is not ideal, resulting in heavy equipment, energy consumption, short life and affect product quality and pollute the environment. Therefore, China since the 1970s, began with a metal anode and membrane electrolyzer replace graphite electric tank, with titanium wet chlorine cooler cooler instead of graphite, have achieved good results.
     Soda is one of the basic chemical raw materials, it is directly related to the development of national economy. Soda ash production process, and NH3 gas medium mostly CO2, the liquid medium is mostly NaCl, higher NH4Cl, NH4HCO3 and Cl- concentration of the solution, the use of carbon steel, cast iron carry out the carbonation reaction of carbonation tower tubules, hot mother liquor cooler , coolers, and other main external cooling crystallization equipment, are intolerant of corrosion, corrosion serious leakage, life is not more than three years. 1975-1977, Tianjin Soda Plant and Dalian Chemical Industry Company conducted a titanium plant demonstration work, carbonation cooling tower 63 × 2mm, flat titanium heat exchanger, titanium cold outside, titanium pump, CO2 turbine compressor rotor , Ti-6Al-4V alloy impeller application works well, which is performed using titanium transformation and three new 600,000 tons of soda ash plant played a role model for the entire industry.

Titanium / titanium / titanium rods / application in the pharmaceutical industry

Titanium / titanium plates / titanium rods/ application in the pharmaceutical industry

Titanium as a new material, developed in the field of the pharmaceutical industry, medical equipment, human implants, etc., but the use of the past two decades. However, it was a great success and has made significant social and economic benefits, shortening the gap between China and the world's advanced countries.

     Since the seventies, Northeast Pharmaceutical Factory, Shandong Xinhua Pharmaceutical Factory, Wuhan Pharmaceutical pioneered the use of titanium equipment in aspirin, dipyrone, caffeine and other products, not only to solve the serious problems of production and development equipment corrosion problems, and greatly improve the quality of medicines.

     In recent years, many domestic pharmaceutical companies transformation and VC, VB and other products in large quantities of titanium and titanium equipment selection, which also laid the titanium special status in the pharmaceutical industry.

     Medical equipment, surgical instruments is one area of rapid development in recent years, due to the titanium used as a surgical instrument has special advantages, which won the surgery, ophthalmology, cardiothoracic surgeon welcome, but also one of the development of today's surgical instruments .

     Another notable feature of titanium is biocompatible, they have been selected as the best human implant material. More than a decade, the world and many of our research department, medical, hospital, also made a lot of basic work and clinical studies confirm that titanium is the best material from human implant depth, breadth, all these years with titanium material for the femoral head, artificial wrist, knee, dental Implants, cranioplasty, pacemakers have documented thousands of cases, these years of research, track, compare, titanium is reported so far the best human implant material.

Titanium / titanium rod / titanium purposes

Titanium / titanium rod / titanium purposes

Titanium / titanium rods /titanium plate has a high strength and density and small, good mechanical properties, good toughness and corrosion resistance. In addition, poor process performance titanium alloy, machining difficulties in thermal processing, and very easy to absorb carbon hydrogen nitrogen and other impurities. There are poor abrasion resistance, complex production process. Titanium industrial production was started in 1948. Require the development of the aviation industry, the titanium industry with an average annual growth rate of about 8% of the development. Currently the world's titanium alloy production reached 40,000 tons, nearly 30 kinds of titanium alloys. The most widely used titanium alloy is Ti-6Al-4V (TC4), Ti-5Al-2.5Sn (TA7) and commercially pure titanium (TA1, TA2 and TA3).

Titanium is mainly used for the production of aircraft engine compressor components, followed by structure rockets, missiles and high-speed aircraft. The mid-1960s, titanium and its alloys have been in general industrial applications, electrodes for electrolysis industry production, power plant condensers, oil refining and desalination heater and environmental pollution control devices. Titanium and its alloys have become a corrosion resistant structural materials. In addition, for the production of hydrogen storage materials and shape memory alloys. Titanium is an important new structural materials used in the aerospace industry, the proportion between the aluminum and steel, the strength and the use of temperature between, but high strength and excellent resistance than seawater corrosion and ultra-low temperature performance. The amount of titanium in the aviation engine usually accounts for 20% to 30% of the total weight of the structure, mainly for the manufacture of compressor components, such as forging titanium fan, compressor disk and blades, cast titanium compressor casing, intermediate casing, bearing housing and so on. Spacecraft main use of high strength titanium alloy, corrosion resistance and low temperature performance to produce all kinds of pressure vessels, fuel tanks, fasteners, instrument straps, architecture and rocket casing. Sputnik, the lunar module, manned spacecraft and space shuttle are also using titanium plates welded.

Performance titanium and alloys

Performance titanium and alloys

  Ti-6Al - 4V titanium alloy with low density, high strength, good toughness, corrosion resistance, good processing performance, etc., is an ideal material for aerospace engineering structures.

  titanium for sale is a new structural material, it has excellent performance, such as low density (~ 4.5g cm-3), strength and fracture toughness than the ratio, strength and resistance to fatigue crack propagation ability, good low-temperature toughness, resistance excellent corrosion properties, the maximum operating temperature of some titanium alloys for 550ºC, is expected to reach 700ºC. So it gets increasingly widely used in aerospace, chemical, medical, shipbuilding and other industrial sectors, is developing rapidly.

   Another notable feature is the corrosion resistance of titanium, which is the oxygen affinity of titanium is particularly large, able to generate a dense surface oxide film to protect against corrosion medium titanium. In most aqueous solutions of metal titanium, can generate passive oxide film on the surface. Therefore, the titanium in acidic, alkaline, neutral saline solution and oxidizing medium has good stability, but in a medium, the titanium oxide film surface can be continuously dissolved in this medium will be titanium corrosion. For example, hydrofluoric acid, hot concentrated hydrochloric acid, and phosphoric acid flow, since the surface of the titanium oxide film was dissolved, so titanium corrosion. If adding an oxidizing agent or certain metal ions in these solutions, the surface of the titanium oxide film will be protected.