High-temperature alloy ball for surface strengthening of aircraft high-pressure turbine disc and drum shaft end face teeth
A high-pressure turbine and surface strengthening technology, applied in the field of superalloy pellets, can solve problems such as insignificant strengthening effect and iron pollution, and achieve the effects of good durability, improved life, and improved fatigue strength
Inactive Publication Date: 2018-03-13
江苏奥力斯特科技有限公司
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AI Technical Summary
Problems solved by technology
The cast steel shot has no obvious strengthening effect on the tooth surface of the aircraft high-pressure turbine disc and the end face of the drum shaft. In addition, the cast steel shot will bring serious iron pollution
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the preferred embodiments of the present invention will be described in detail below, so as to define the protection scope of the present invention more clearly.
[0012] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.
[0013] In a specific implementation, the high-temperature alloy pellets used for surface strengthening of aircraft high-pressure turbine disks provided by the present invention have a mass percentage of 15.00-17.00% chromium, 12.00-14.00% cobalt, 3.80-4.20% tungsten, an...
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Abstract
The invention discloses a high-temperature alloy ball for surface strengthening of aircraft high-pressure turbine disc and drum shaft end face teeth. The high-temperature alloy ball comprises, by masspercent, 15.00%-17.00% of chromium, 12.00%-14.00% of cobalt, 3.80%-4.20% of tungsten, 3.80%-4.20% of molybdenum, 0.50%-1.00% of niobium, 2.00%-2.40% of aluminum, 3.50%-3.90% of titanium, 0.02%-0.05%of carbon, 0.025%-0.07% of zirconium, 0.006%-0.017% of boron and the balance nickel and inevitable impurity elements. In the prepared high-temperature alloy ball for surface strengthening of the aircraft high-pressure turbine disc and drum shaft end face teeth, the hollow phenomenon and the surface crack phenomenon cannot happen, and the high-temperature alloy ball has many beneficial effects of being high in density and element ratio consistency, small in hardness deviation, good in durability and the like and is especially suitable for surface strengthening treatment of the aircraft high-pressure turbine disc and aircraft drum shaft end face teeth; and the fatigue strength of a part can be effectively improved, and the service life of the part can be prolonged.
Description
technical field [0001] The invention relates to a metal product, in particular to a high-temperature alloy pellet used for strengthening the tooth surface of an aircraft high-pressure turbine disc and a drum shaft end face. Background technique [0002] At present, cast steel shot is generally used to strengthen the surface of aircraft high-pressure turbine disc and drum shaft end face teeth. The cast steel shot has no obvious strengthening effect on the tooth surface of the aircraft high-pressure turbine disc and the end face of the drum shaft. In addition, the cast steel shot will bring serious iron pollution. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a high-temperature alloy shot for strengthening the tooth surface of the aircraft high-pressure turbine disk and drum shaft end face, and its specific technical scheme is as follows: [0004] A high-temperature alloy pellet used for strengthe...
Claims
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IPC IPC(8): C22C19/05C22C1/02C21D7/06
CPCC22C19/056C21D7/06C22C1/023
Inventor 王垭栋刘扬单国平
Owner 江苏奥力斯特科技有限公司