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Method for retarding generation and expansion of cracks of a solid component

A component and solid technology, which is applied in the field of improving the service life of solid components, can solve the problems of slowing down the generation and expansion of cracks in solid components, and achieve the effects of increased elastic deformation, increased deformation, and reduced range of motion

Inactive Publication Date: 2019-10-25
赵京晨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above analysis, this application aims to provide a method for slowing down the crack generation and propagation of solid parts, which solves the problem in the prior art that the generation of cracks in solid parts cannot be avoided or slowed down under the condition that the strength of the solid parts remains basically unchanged. and extended questions

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  • Method for retarding generation and expansion of cracks of a solid component
  • Method for retarding generation and expansion of cracks of a solid component
  • Method for retarding generation and expansion of cracks of a solid component

Examples

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Embodiment 1

[0041] In this embodiment, a solid part (Ni-based superalloy) is placed in a static magnetic field. The fracture life of five magnetic field samples (magnetic field sample 1, magnetic field sample 2, magnetic field sample 3, magnetic field sample 4 and magnetic field sample 5) was tested by tension-compression cycle stress fatigue fracture test, see Table 2.

[0042] The applied static magnetic field intensity and fracture life of 5 magnetic field samples in the embodiment one of table 2

[0043]

[0044] It can be seen from Table 2 that in the results of the fatigue fracture life test of the tension-compression cycle stress of the solid parts applied to the static magnetic field, except for the magnetic field sample 1, which did not reach 10 7 In addition to the stress cycle cycle, the fracture occurred, and the other four magnetic field samples all exceeded 10 7 After the number of stress cycles, the test ends without fracture.

[0045] Apparently, compared to the compa...

Embodiment 2

[0047] In this embodiment, a solid part (Ni-based superalloy) is placed in an electrostatic field. The fracture life of five electric field samples (electric field sample 1, electric field sample 2, electric field sample 3, electric field sample 4 and electric field sample 5) was tested by tension-compression cycle stress fatigue fracture test, see Table 3.

[0048] The applied electrostatic field intensity and fracture life of 5 electric field samples in the embodiment two of table 3

[0049]

[0050] It can be seen from Table 3 that in the test results of the stress fatigue fracture life of the solid parts applied with the electrostatic field, except for the electric field sample 1, which did not reach 10 7 In addition to the stress cycle cycle, the fracture occurred, and the other 4 electric field samples all exceeded 10 7 After the number of stress cycles, the test ends without fracture.

[0051] Apparently, compared to the comparative sample without applying an elect...

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Abstract

The invention discloses a method for retarding generation and expansion of cracks of a solid component and belongs to the technical field of prolonging the service life of solid components. By means of the method, the problem in the prior art that under the circumstance that it is guaranteed that strength of a solid component is basically unchanged, generation and expansion of the cracks of the solid component cannot be avoided or retarded is solved. According to the method for retarding generation and expansion of the cracks of the solid component, the solid component is placed in a static magnetic field and / or an electrostatic field. The method for retarding generation and expansion of the cracks of the solid component can be used for retarding generation and expansion of the cracks ofthe solid component.

Description

technical field [0001] The present application relates to a method for increasing the service life of a solid component, in particular to a method for slowing down the generation and propagation of cracks in the solid component. Background technique [0002] Cracks will appear in solid parts during use, and the crack tip will gradually expand under the action of expansion stress, resulting in the destruction of the entire solid part. In general, more plastic solid parts have better resistance to crack growth. Under normal circumstances, the plasticity of a solid material is inversely proportional to its strength. Generally speaking, the following two methods can be used to improve the plasticity of a solid material. One is to reduce the content of strengthening elements in the material, and the other is to transform the crystal structure of the material through heat treatment. For a more deformable crystal structure, obviously, the above two methods will lead to a reduction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D10/00
CPCC21D10/00
Inventor 赵京晨
Owner 赵京晨