Carbon fiber reinforced nickel-based composite material and producing method thereof

Abstract

The invention discloses a carbon fiber reinforced nickel-based composite material and a preparation method thereof, and relates to a metal-based composite material. The metal matrix composite materials prepared by the prior art are not suitable for parts such as steam turbines used at high temperatures. The composition and volume percentage of the composite material of the present invention are: carbon fiber: 30-35%, copper: 6-8%, nickel: 57-64%. The process steps are: carbon fiber pretreatment, copper electrodeposition, cleaning, neutralization, nickel electrodeposition, forming electrodeposited nickel, billet cleaning, drying, cutting billets into molds, vacuum hot pressing, and furnace cooling. The Cf / Ni composite material prepared by the three-step electrodeposition method in the present invention can not only meet the use requirements of gas turbine engine blades, but also has the advantages of good high temperature strength, high elastic modulus, low density, high melting point, and creep resistance. .

Description

technical field [0001] The present invention relates to metal matrix composites, particularly carbon fiber reinforced nickel matrix composites (C f / Ni) preparation process. Background technique [0002] One of the most promising applications of metal matrix composites is in gas turbine engine blades. Such parts operate at high temperatures and close to the highest stresses that existing alloys can withstand, so they have become an important direction for composite materials research. [0003] Most of the work done on metal matrix composites in recent years is based on the composite system of aluminum and aluminum alloy matrices, because this matrix is ​​easier to manufacture, and the manufacturing and use temperatures are lower, and the matrix can be reduced during the manufacturing process. Degree of reaction with fiber. However, for gas turbine parts that require oxidation resistance, creep resistance, and fatigue resistance at high temperatures, aluminum-based composi...

AI Technical Summary

Problems solved by technology

Due to the high melting point of nickel (1453°C), there are the following problems in the manufacturing process: (1) The immersion temperature of the reinforcing fiber in the liquid metal nickel is not easy to control

(2) Due to the high preparation temperature, the activity of the fiber and the matrix is ​​enhanced, resulting in an enhanced interaction between the fiber and the matrix, which is not conducive to the formation of a good interface bonding state after compounding, thus affecting the performance of the composite material

(3) High preparation temperature leads to high complexity of manufacturing equipment, which will increase manufacturing cost

The test has achieved some research results in the preparation mechanism, but the specific technical parameters of the composite material preparation process steps such as the composition of the composite material, the proportion, and the electrolyte formula are still immature, and technical solutions for industrial application cannot be provided.

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