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Method for preparing low-oxygen titanium-zirconium-molybdenum (TZM) alloy and application

A technology of alloy and mixed raw materials, which is applied in metal processing equipment, manufacturing tools, non-luminescent electrode manufacturing, etc., can solve the problems of high oxygen content in TZM alloys, and achieve the effects of strong toughness at room temperature, uniform dispersion, and high recrystallization temperature

Active Publication Date: 2011-05-04
XIAN GEMEI METAL MATERIAL
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Problems solved by technology

[0007] The invention provides a preparation method and application of a low-oxygen TZM alloy, which mainly solves the problem of high oxygen content in the TZM alloy produced by powder metallurgy

Method used

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  • Method for preparing low-oxygen titanium-zirconium-molybdenum (TZM) alloy and application

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Experimental program
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Embodiment Construction

[0023] 1) Take industrial molybdenum powder with a Fisherley particle size of 4 μm, 5 μm, 7 μm, 9 μm, 11 μm, 13 μm, 15 μm, 20 μm, 30 μm, 40 μm, and 50 μm, and titanium hydride powder with a Fisher’s particle size of 3 μm to 10 μm. Zirconium hydride powder of 3 μm to 10 μm, and carbon black with a Fischer particle size of 0.1 μm to 3 μm. The added mass of titanium hydride powder is 0.50%, the added mass of zirconium hydride powder is 0.10%, the added mass of carbon black powder is 0.12%, and the rest is molybdenum powder. Mix the selected molybdenum powder, titanium hydride, zirconium hydride powder and carbon black powder evenly.

[0024] 2) Raw material forming

[0025] The raw materials uniformly mixed in step 1) are subjected to static pressure molding under a pressure of 200 MPa to obtain a billet, the size of which is Φ120mm×130mm.

[0026] 3) Raw material sintering

[0027] Sinter the shaped billet in a hydrogen protective atmosphere. The sintering temperature is show...

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Abstract

The invention provides a method for preparing a low-oxygen titanium-zirconium-molybdenum (TZM) alloy, which comprises the following steps of: 1) selecting raw materials, namely, uniformly mixing industrial molybdenum powder with the Fisher particle size of 4 to 50 mu m, powder containing titanium and zirconium and with the Fisher particle size of 3 to 10 mu m, and simple substance carbon powder with the Fisher particle size of 0.1 to 3 mu m according to a certain mass ratio; 2) shaping the raw materials, namely, treating the mixed raw materials under the pressure of 100 to 300 Mpa to obtain a shaped blank; and 3) sintering the raw materials, namely, sintering the shaped blank in the environment of vacuum, hydrogen or inert gas at the temperature of 1,800 to 2,300 DEG C for 5 to 15h to obtain the low-oxygen TZM alloy. The method solves the problem of high oxygen content of the TZM alloy prepared by a powder metallurgy method. The low-oxygen TZM alloy prepared by the method can be used for the preparation of a rotating anode of an X-ray tube, a composite target substrate, a high-temperature crucible, a hot-forging die and a high-temperature ceramic pad.

Description

technical field [0001] The invention relates to a powder metallurgy method for preparing a low-oxygen TZM alloy and the application of the low-oxygen TZM alloy. The oxygen content of the TZM alloy prepared by the method can be as low as 20 ppm or less, and can optimally reach 1 ppm. Background technique [0002] TZM alloy (Titanium-Zirconium-Molybdenum Alloy) is a high-temperature alloy commonly used in molybdenum-based alloys, and it is also an important high-temperature alloy in commercial use. Because TZM alloy has good high temperature performance, it is widely used in industries such as medical equipment, aerospace, electronics industry and glass ceramic manufacturing industry. [0003] A large number of studies have shown that the plasticity-brittle transition temperature, recrystallization temperature, and toughness of TZM alloys are all related to the oxygen content. Oxygen in the TZM alloy is easy to combine with the strengthening elements titanium and zirconium. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22C27/04B21J13/02H01J35/10H01J9/14C04B35/622
Inventor 陈兴友梁鹏兴徐信森位峰徐信侠张文丽位江岩
Owner XIAN GEMEI METAL MATERIAL
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