Composite process method for strengthening Ti-10V-2Fe-3Al alloy surface layer

A ti-10v-2fe-3al and composite process technology, which is applied in the composite process field of Ti-10V-2Fe-3Al alloy surface layer strengthening, can solve the problems such as the depth of the active layer and the reduction in hardness, and improve the surface structure and mechanical properties. Effect

Inactive Publication Date: 2020-01-21
NANCHANG HANGKONG UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through wet shot peening on the surface of Ti-10V-2Fe-3Al alloy sample, it is found that its surface structure and properties have been greatly improved, but compared with dry shot peening, the depth of the active layer and Hardness is reduced

Method used

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  • Composite process method for strengthening Ti-10V-2Fe-3Al alloy surface layer
  • Composite process method for strengthening Ti-10V-2Fe-3Al alloy surface layer
  • Composite process method for strengthening Ti-10V-2Fe-3Al alloy surface layer

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Embodiment Construction

[0023] The implementation of the present invention will be described in detail below with reference to the drawings and examples, so as to fully understand and implement the implementation process of how to use technical means to solve technical problems and achieve technical effects in the present invention.

[0024] Step 1. Adopt the method of orthogonal experimental design

[0025] The four factors of dry shot peening size (mm), dry shot peening time (mim), wet shot peening size (mm) and wet shot peening time (min) were selected for orthogonal experiment, and four levels were selected for each factor, which is An experiment with 4 factors and 4 levels, the orthogonal table L16(4 5 ) to arrange the test. The designed orthogonal experiment design scheme and experimental results are shown in Table 1:

[0026] Table 1. Orthogonal experimental design table and results

[0027]

[0028] Step 2. Test result analysis

[0029] According to the range value in range analysis R=...

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Abstract

The invention discloses a composite process method for strengthening a Ti-10V-2Fe-3Al alloy surface layer. According to the composite process method, an orthogonal test design scheme is adopted, an extreme value and variance analysis method is applied, preparation process parameters of a Ti-10V-2Fe-3Al alloy shot blasting sample are optimized, and shot blasting treatment results of a Ti-10V-2Fe-3Al alloy under different parameter combinations (dry shot blasting time, wet shot blasting time, dry shot blasting size and wet shot blasting size) are explored. Through comprehensive analysis of the depth of an action layer, micro-hardness and surface roughness of the shot-blasted sample, the optimal shot blasting process parameters are obtained, and thus the purpose of optimizing the composite process for strengthening the Ti-10V-2Fe-3Al alloy surface layer is achieved.

Description

technical field [0001] The invention relates to the technical field of shot peening impact strengthening, in particular to a composite process for strengthening the surface layer of a Ti-10V-2Fe-3Al alloy. Background technique [0002] Shot peening impact strengthening technology is a cold working process below the recrystallization temperature of the component to be treated, also known as controlled shot peening. During the shot peening process, the projectile impacts the surface of the component to be sprayed at a high speed under the acceleration of the air compressor, and produces elastic, plastic deformation and work hardening within a certain depth of the surface layer of the material to obtain microstructure and grain refinement. The high residual compressive stress field improves the microhardness of the workpiece, thereby improving the fatigue resistance, wear resistance and stress corrosion resistance of metal materials. Because shot peening is simple, effective a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/18C21D7/06C22C14/00
CPCC21D7/06C22C14/00C22F1/183
Inventor 王建郑海忠尤方圆马盼盼
Owner NANCHANG HANGKONG UNIVERSITY
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