Titanium alloy for laser solid forming and laser shaping repairing

A laser forming repair and laser three-dimensional forming technology, which is applied in the coating process and coating of metal materials, can solve problems such as mismatching mechanical properties, and achieve the effect of reducing strength and improving plasticity

Active Publication Date: 2009-12-16
西安西北工业大学资产经营管理有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the incompatibility between the mechanical properties of the laser direct deposition TC4 alloy and the TC4 al

Method used

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  • Titanium alloy for laser solid forming and laser shaping repairing
  • Titanium alloy for laser solid forming and laser shaping repairing
  • Titanium alloy for laser solid forming and laser shaping repairing

Examples

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Example Embodiment

[0012] Example one

[0013] The room temperature mechanical properties of the laser deposited state of this embodiment are: tensile strength 910 MPa, yield strength 840 MPa, elongation rate 17.0%, and section shrinkage rate 50%. The present invention is a titanium alloy special for laser three-dimensional forming and repair. The titanium alloy includes titanium, aluminum and vanadium. In this embodiment, the proportions of the alloy components are: aluminum 3.6wt%, vanadium 2.1%, The rest is titanium, and the total amount does not exceed 100%.

Example Embodiment

[0014] Example two

[0015] The room temperature mechanical properties of the laser deposited state of this embodiment are: tensile strength 935MPa, yield strength 870MPa, elongation rate 15.0%, and section shrinkage rate 46%. The present invention is a titanium alloy dedicated to laser three-dimensional forming and repair. The titanium alloy includes titanium, aluminum, and vanadium. In this embodiment, the ratio of each alloy component is: aluminum 3.9wt%, vanadium 2.8%, The rest is titanium, and the total amount does not exceed 100%.

Example Embodiment

[0016] Example three

[0017] The room temperature mechanical properties of the laser-deposited state of this example are: tensile strength 980 MPa, yield strength 915 MPa, elongation rate 13.0%, and section shrinkage rate 39%. The present invention is a titanium alloy dedicated for laser three-dimensional forming and repair. The titanium alloy includes titanium, aluminum and vanadium. In this embodiment, the proportion of each alloy component is: aluminum 5.0wt%, vanadium 3.4%, The rest is titanium, and the total amount does not exceed 100%.

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Abstract

The invention discloses a titanium alloy for laser solid forming and laser shaping repairing, comprising the following components in percentage by weight: 3.6-5.0% of aluminium, 2.1-3.4% of vanadium and the balance of titanium, and the gross is not more than 100%. Compared with TC4 alloy in the prior art, the invention lowers the contents of aluminium and vanadium, and reduces the solid solution reinforcement effect of aluminium and vanadium in titanium; the strength of titanium alloy is lowered, plasticity is improved, and the strength and the plasticity of the titanium alloy are comparative to a TC4 alloy forged piece. The mechanical property of the laser deposition state of the titanium alloy is as follows: tensile strength is 910-980MPa, yield strength is 840-915MPa, elongation rate is 13-17%, and reduction of area is 39-50%. The invention not only can be used for laser shaping and repairing, but also can be used for high-energy beam processing technology, such as electron beam deposition shaping, electron beam overlaying, plasma overlaying and shaping and the like.

Description

1. Technical field [0001] The invention relates to the field of metal materials, in particular to a titanium alloy used for laser stereoforming and laser forming repair. 2. Background technology [0002] Laser stereoforming technology is an advanced three-dimensional free additive manufacturing technology developed in the past ten years, which is used for rapid manufacturing of dense metal parts and regenerative manufacturing of damaged parts (laser forming repair). At present, most of the materials used for laser forming and repair are powder materials of existing alloys. The types of alloys include forging alloys, casting alloys, powder alloys for spraying, and so on. However, the process of laser forming and repairing is different from that of forging, casting and other processing techniques. Therefore, using forged alloys, casting alloys, etc. for laser forming and repairing will form a microstructure different from that of forging and casting, and then obtain different ...

Claims

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Application Information

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IPC IPC(8): C22C14/00C23C24/10B22F3/105
Inventor 黄卫东薛蕾陈静林鑫
Owner 西安西北工业大学资产经营管理有限公司
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