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洛陽賽恩思新材料有限公司

LUOYANG SCIENCE NEW MATERIALS CO.,LTD

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Molybdenum alloy
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TZM Rod

  • TZM 合金（英文名稱 TZM Alloy） TZM合金具有熔點(diǎn)高、強(qiáng)度大、彈性模量高、線膨脹系數(shù)小、蒸氣壓低、導(dǎo)電導(dǎo)熱性好、抗蝕性強(qiáng)以及高溫力學(xué)性能良好等特點(diǎn)，從而在很多領(lǐng)域得以廣泛應(yīng)
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                            TZM Alloy

    TZM alloy has many characteristics such as high melting point, high strength, high modulus of elasticity, small coefficient of linear expansion, low vapor pressure, good electrical and thermal conductivity, strong corrosion resistance and good mechanical properties at high temperature. The field is widely used. 
    The TZM board is silver-gray metallic luster after alkali washing and can be produced according to the width and thickness provided by the user. The surface is smooth, flat, free of heavy skin, delamination, cracks, cracks, impurities and other defects.                

 Available TZM rod specifications              
Diameter (mm) Length (mm) surface condition
1-100 50-2000 Alkali washing, pickling, polishing


                 TZM chemical composition
number Chemical composition (mass fraction, %)
Main ingredient Impurity ≤
Mo Ti Zr C Al Ca Fe Mg Ni Si C N O
TZM margin 0.4-0.55 0.06-0.121 0.01-0.04 - - 0.01 - 0.005 0.01 - 0.003 0.08
    TZM alloy has good mechanical properties, especially at high temperatures, its mechanical properties are better than pure molybdenum. 

Comparison of physical properties of  TZM Alloy & Pure Molybdenum
material Density g/cm 3 Melting point °C Boiling point °C
TZM alloy (Ti0.5/Zr0.1) 10.22 2617 4612
Mo 10.29 2610 5560
 
Mechanical properties of  TZM alloy (Ti0.5/Zr0.1)
Mechanical properties Elongation Elastic Modulus Yield Strength tensile strength Fracture toughness
Numerical value <20 320 560-1150 685 5.8-29.6
 
High temperature tensile strength and elongation of                  TZM alloy (Ti0.5/Zr0.08)
Temperature / °C performance
Tensile strength / MPa Elongation %
RT 1140 ~ 1210 7.5~13.0
1000 1000 700 ~ 720
1200 1200 320 ~ 360
1300 1300 190 ~ 210
1400 1400 140 ~ 170
 
 
Thermal and electrical properties of  TZM alloy (Ti0.5/Zr0.1)
performance Thermal expansion coefficient / K-1 (20 ~ 100 ° C) Thermal conductivity W/m·K Maximum operating temperature in air °C Resistivity Ω·m
Numerical value 5.3*10 -6 126 400 (5.3-5.5)*10 -8
 
                          TZM Alloys Using
    The many advantages of TZM alloys (molybdenum zirconium and titanium alloys) make them a very wide range of applications. Its good mechanical properties under high temperature and high pressure make it more used in the military industry, such as the valve body in the torpedo engine, the rocket nozzle, the gas pipe, the nozzle throat lining; and it is used as the color picture tube glass shell production line. The main shaft of the platinum crucible-coated agitator in the glass furnace is made of corrosion resistance to the metal liquid; the TZM alloy (molybdenum zirconium-titanium alloy) has a high melting point, so it can be used as a die-casting mold material for black or non-ferrous metals. And seamless stainless steel perforated heads, such as copper rotor molds on the engine; 
   
    TZM alloys are also used in the electrical and electronic industry, such as tube cathodes, grids, high voltage rectifier components, semiconductor thin film integrated circuits, etc.; TZM alloys are also widely used in energy equipment, such as radiation hoods, support frames, heat exchangers, rails, etc.,  and are also used in large quantities as plates for heat insulation of furnace walls and hot isostatic presses. High-temperature structural materials such as screens; TZM alloys (molybdenum zirconium-titanium alloys) are also used in the electrical and electronic industry, such as tube cathodes, gates, high-voltage rectifier components, and semiconductor film assemblies. ; Circuit, etc. 
   
    Furthermore, in the nuclear power equipment TZM alloy (Mo zirconium-titanium alloy) is also used more widely, such as the radiation shield support frame, a heat exchanger, rail and the like. 

                 TZM alloy preparation method
    TZM alloy (molybdenum zirconium titanium alloy) common preparation methods are: arc melting a casting method and powder metallurgy technology. 

    TZM alloy rod arc melting one casting method is to use arc to melt pure molybdenum and then add a certain amount of alloying elements such as Ti and Zr by weight percentage, and then obtain TZM alloy (molybdenum zirconium titanium alloy) by conventional casting method;

    Powder metallurgy has a unique chemical composition and mechanical and physical properties that are not available with conventional fusion casting methods. The high-purity molybdenum powder is uniformly mixed with TiH2 powder, ZrH2 powder and graphite powder in proportion, and then formed by cold isostatic pressing, and then sintered at a high temperature under a protective atmosphere to obtain a TZM billet. The billet is further subjected to high temperature hot rolling (high temperature forging), high temperature annealing, medium temperature hot rolling (medium temperature forging), medium temperature annealing to eliminate stress, and then warm rolling (warm forging) to obtain a TZM finished product. The rolling (forging) process of the blank and the subsequent heat treatment have a great influence on the properties, anisotropy and texture of the material. 

    The powder metallurgy method can save large-scale equipment such as vacuum consumable electric arc furnace, large-scale extruder and forging hammer and corresponding high-temperature heating furnace, simplifying the process, shortening the production cycle, reducing energy consumption, and increasing the production capacity and yield. Therefore, the cost is greatly reduced. 

    TZM alloys (molybdenum zirconium and titanium alloys) are usually prepared into bars and sheets. The powder metallurgy method can save large equipment such as vacuum consumable electric arc furnace, large extruder and forging hammer and corresponding high temperature heating furnace, which simplifies the process, shortens the production cycle, reduces the consumption, and improves the production capacity and the yield. Greatly reduced. 

    The high quality TZM sheet, bar and wire produced by our company, please tell us the specifications of TZM you need, we will quote you.
 

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