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Welding material and welding method for titanium-steel clad plate

A composite plate and welding wire technology, applied in the direction of welding/cutting medium/material, welding/welding/cutting articles, welding medium, etc., can solve the problems of difficult to obtain high-performance parts, cracking of intermetallic compounds, etc., and achieve tensile strength High, simplified pre-welding treatment, easy to promote the effect of engineering

Inactive Publication Date: 2015-09-30
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-entropy alloy welding wire for welding titanium-steel clad plates, which solves the problem that the existing welding method is easy to form hard and brittle intermetallic compounds leading to cracking, and it is not easy to obtain high-performance parts.

Method used

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  • Welding material and welding method for titanium-steel clad plate
  • Welding material and welding method for titanium-steel clad plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] TIG welding was performed on TA2 / 0Cr18Ni9Ti with the high-entropy alloy welding wire obtained according to the component contents in the above-mentioned Table 1, and the final high-entropy alloy weld composition of Example 1 in the above-mentioned Table 2 was obtained, and there was no crack in the transition zone of the weld. The tensile strength of TA2 / 0Cr18Ni9TiTIG welded joint is about 450Mpa.

Embodiment 2

[0039] TIG welding was performed on TA2 / 0Cr18Ni9Ti with the high-entropy alloy welding wire obtained according to the component content in the above-mentioned Table 1, and the final high-entropy alloy weld composition of Example 2 in the above-mentioned Table 2 was obtained, and there was no crack in the transition zone of the weld. The tensile strength of TA2 / 0Cr18Ni9TiTIG welded joint is about 462Mpa.

Embodiment 3

[0041] TIG welding was performed on TA2 / 0Cr18Ni9Ti with the high-entropy alloy welding wire obtained according to the component contents in the above-mentioned Table 1, and the final high-entropy alloy weld composition of Example 3 in the above-mentioned Table 2 was obtained, and there was no crack in the transition zone of the weld. The tensile strength of TA2 / 0Cr18Ni9TiTIG welded joint is about 471Mpa.

[0042] It can be seen that the high-entropy alloy welding wire of the present invention has excellent strength, toughness and corrosion resistance, is not easy to form a brittle intermetallic compound phase, and is easy to obtain a high-performance titanium-steel composite plate welded structural steel base, and the welding wire is easy to process and shape The welding operation process of the high-entropy alloy welding wire is simple, convenient and efficient, and easy to popularize.

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Abstract

The invention discloses a high- entropy alloy welding wire for welding a titanium-steel composite board. The high-entropy alloy welding wire consists of the following components by atomic percent: 8 to 12 percent of Ti, 15 to 18 percent of Fe, 30 to 33 percent of Be, 20 to 24 percent of Ni, 20 to 24 percent of Cu, and the total percentage is 100 percent. The invention also disclosese a method for welding the titanium-steel composite board by utilizing the high-entropy alloy welding wire. The high-entropy alloy welding wire has excellent strength, flexibility and corrosion resistance, an embrittlement intermetallic compound is unlikely to form, a welding structural steel base layer of the titanium and steel composite board with high performance is easy to obtain, a composite layer stripping procedure for the composite board is not needed, and the preweld treatment is greatly simplified; and the welding of a steel base layer and a titanium composite layer of the titanium-steel composite board can be completed in one step by adopting TIG weld. No crack exists in a weld seam transitional area; and the tensile strength of the welding head is high.

Description

technical field [0001] The invention belongs to the field of welding technology, and relates to a high-entropy alloy welding wire used for welding titanium-steel composite plates, and also relates to a method for welding titanium-steel composite plates by using the high-entropy alloy welding wire. Background technique [0002] Titanium and its alloys have high specific strength and good corrosion resistance, but the high price of titanium metal limits its further development and application. The price of titanium-steel composite plate is equivalent to 25% to 35% of that of titanium. At the same time, it has the excellent characteristics of titanium and steel. It is a good way to save titanium metal. It has obvious social and economic effects in terms of safety and cost reduction, and has broad application prospects. The equipment produced by titanium-steel composite plate is cost-effective, but its own structure is complex, and its welding construction is much more difficul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/24B23K9/18B23K9/167B23K9/235
CPCB23K9/167B23K9/18B23K9/232B23K35/30B23K2101/185B23K2103/24
Inventor 徐锦锋翟秋亚
Owner XIAN UNIV OF TECH
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