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Anonymous users2024-02-07Titanium andTitaniumProperties and Uses:
a) Properties of titanium.
Titanium is very similar in appearance to steel, with a density of grams3, less than 60 of steel, and is the lowest density metal element among refractory metals.
2) The use of titanium.
Dense metal titanium.
Because of its light weight, it has higher strength than aluminum alloy, and can maintain higher strength than aluminum at high temperatures.
of highly valued.
In view of the fact that the density of titanium is 57 of steel, its specific strength (strength-to-weight ratio or strength density is called specific strength) is high, and the ability to resist corrosion, oxidation and fatigue is strong, the 3 4 of titanium alloy is used as a structural material represented by aviation structure alloy, and 1 4 is mainly used as a corrosion-resistant alloy.
Other Applications:
Ferritanium (TiFe), which is made from ilmenite concentrate, is a deoxidizer used in the manufacture of stainless steel.
and stabilizers, ferrotitanium hydrogen storage anode and rare earth hydrogen storage materials in the manufacture of hydrogen storage batteries have their own advantages, and the cost is relatively low, in hydrogen storage, transportation, catalysis, fuel cells and other aspects of rare earth will have a fight. Ti—Ni shape memory alloy.
It is also an indispensable high-tech material for medical and military industry.
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Anonymous users2024-02-06Titanium is as follows:TitaniumIt is an alloy composed of other elements based on titanium, which has the characteristics of light weight, high strength, small elasticity, high temperature resistance and corrosion resistance, and is mainly used for aero engines.
Rockets, missile parts hall balance collision. (Titanium is also used in ordinary industries, and there are many grades of titanium, and different industries will choose the appropriate grade of titanium according to their requirements.) ）
Titanium:Titanium resembles steel in appearance and has a silver gray color.
Luster, is a transition metal.
It has been considered a rare metal for some time now.
Titanium is not a rare metal, titanium accounts for about 16 times the total weight of the earth's crust, which is 16 times the total amount of copper, nickel, lead and zinc. It ranks seventh in the world of metals, and there are more than 70 kinds of minerals containing titanium.
The above content refers to Encyclopedia - Titanium.
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Anonymous users2024-02-05Answer: When using metal materials in the medical industry, they must be absolutely harmless to the human body. When the metal is corroded, the metal ions can be dissolved, which has an impact on the cell tissue of the organism (human body), so it is necessary to choose metal materials that are not easy to corrode and have high corrosion resistance, and titanium is a high corrosion resistant material. Medical metal materials range from stainless steel series to cobalt-based and titanium-based alloy series, and the proportion of titanium and titanium alloys is increasing.
The amount of titanium used in the medical industry worldwide is about 1,000 tons a year.
1. The adaptability of titanium to the human body (the compatibility of titanium to living organisms).
In order to observe the response of metal ions to the human body, in the laboratory, the elemental monomer ions provided by the Standardization Technical Committee for Biological Evaluation of Medical Devices were used to evaluate the adaptability of human bodies (organisms) using cells sensitive to metal ions, such as mouse lung fibroblasts (V79 cells) and mouse (20-day-old mice) fibroblast tissues (I929 cells) used for Chinese medical experiments The reactions were divided into 3 groups as shown in Figure 1.
Vanadium (V), nickel (Ni), copper (Cu), etc., which are highly toxic, and the above elements die in a short time when they are at parts per million (10-6) content. Using vanadium (V) and nickel (N) as examples, the results of experiments on V79 cells are shown in Figure 2. The results of the one-week leaching test showed that if the nickel was around 10 10-6 (pm = parts per million), the cells would all die, while vanadium (V) would be around double digits, that is, the cells would die.
Secondly, when the hard tissues (bones) and soft tissues (muscles) of small animals such as rats and rabbits are buried in metal sheets for testing, it is certain that these highly toxic metals cause necrosis in contact with both hard tissues (bones) and soft tissues (muscles). In the medical industry, when using metal materials, they must be absolutely harmless to the human body. When the metal is corroded, the metal ions can be dissolved, which has an impact on the cell tissue of the organism (human body), so it is necessary to choose metal materials that are not easy to corrode and have high corrosion resistance, and titanium is a high corrosion resistant material.
Medical metal materials range from stainless steel series to cobalt-based and titanium-based alloy series, and the proportion of titanium and titanium alloys is increasing. The amount of titanium used in the medical industry worldwide is about 1,000 tons a year.
1. The adaptability of titanium to the human body (the compatibility of titanium to living organisms).
In order to observe the response of metal ions to the human body, in the laboratory, the elemental monomer ions provided by the Standardization Technical Committee for Biological Evaluation of Medical Devices were used to evaluate the adaptability of human bodies (organisms) using cells sensitive to metal ions, such as mouse lung fibroblasts (V79 cells) and mouse (20-day-old mice) fibroblast tissues (I929 cells) used for Chinese medical experiments The reactions were divided into 3 groups as shown in Figure 1.
Vanadium (V), nickel (Ni), and copper (Cu) are definitely highly toxic
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Anonymous users2024-02-041. Titanium alloy.
Titanium alloy is a single-phase alloy composed of phase solid solution, whether it is at the general temperature or at a higher practical application temperature, it is phase, the structure is stable, the wear resistance is higher than that of pure titanium, and the oxidation resistance is strong. At a temperature of 500 600, it still retains its strength and creep resistance, but it cannot be strengthened by heat treatment, and the strength at room temperature is not high.
2. Titanium alloy.
It is a single-phase alloy composed of phase solid solution, which has high strength without heat treatment, and the alloy is further strengthened after quenching and aging, and the strength can reach 1372 1666MPa at room temperature; However, the thermal stability is poor, and it is not suitable for use at high temperatures.
3. + Titanium alloy.
It is a duplex alloy with good comprehensive properties, good structural stability, good toughness, plasticity and high-temperature deformation properties, good hot pressure processing, quenching and aging to strengthen the alloy. The strength after heat treatment is about 50 100 higher than that of the annealed state; High temperature strength, can work for a long time at a temperature of 400 500, its thermal stability is inferior to titanium alloy.
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