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Special titanium alloy wire for 800MPa-grade electron beam additive material and preparation method of special titanium alloy wire

A titanium alloy wire, 800mpa technology, applied in the field of 800MPa grade electron beam additive special titanium alloy wire and preparation field, can solve the problem of inability to meet the additive manufacturing and other problems, achieve good technical application and market prospects, and improve crevice corrosion resistance , the effect of good welding performance and seawater corrosion resistance

Inactive Publication Date: 2018-08-17
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, there is no domestic special wire material for 800MPa-level titanium alloy electron beam additive components for marine use. The existing structural parts and welding materials cannot meet the needs of additive manufacturing, especially electron beam additive materials.

Method used

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  • Special titanium alloy wire for 800MPa-grade electron beam additive material and preparation method of special titanium alloy wire
  • Special titanium alloy wire for 800MPa-grade electron beam additive material and preparation method of special titanium alloy wire

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Embodiment Construction

[0017] The 800MPa level electron beam additive titanium alloy wire material of the present invention, the titanium alloy wire material composition and its weight percentage are aluminum: 6%-7%, niobium: 3%-4%, zirconium: 2%-3% and molybdenum : 0.8%-1.5%, the balance is titanium.

[0018] The alloying element aluminum is the α-phase stable element of the titanium alloy wire, and its main function is solid solution strengthening. The alloying elements molybdenum and niobium are the β stable phase elements of titanium alloy wire, and their function is to further improve the strength of titanium alloy, and at the same time make the alloy structure have a certain β phase, which improves the processing performance of the alloy; the addition of Nb element can also improve the titanium alloy strength. Crevice corrosion resistance of alloys. The alloying element zirconium is a neutral element of the titanium alloy wire, and its main function is to increase the bonding force between al...

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Abstract

The invention relates to the field of titanium alloy wires for naval architecture and ocean engineering, in particular to a special titanium alloy wire for an 800MPa-grade electron beam additive material and a preparation method of the special titanium alloy wire. The titanium alloy wire comprises, by weight, 6%-7% of aluminum, 3%-4% of niobium, 2%-3% of zirconium, 0.8%-1.5% of molybdenum, and thebalance titanium, wherein aluminum of the alloy elements is an alpha-phase stable element of the titanium alloy wire, molybdenum and niobium of the alloy elements are beta-phase stable elements of the titanium alloy wire, and zirconium of the alloy elements is a neutral element of the titanium alloy wire. The wire can meet the requirement of a manufacturing process of the electron beam additive material, and has good technical application and market prospects on the aspect of manufacturing of electron beam fuse additive materials of naval architecture and ocean engineering components.

Description

technical field [0001] The invention relates to the field of titanium alloy wires for ships and marine engineering, in particular to titanium alloy wires for 800MPa-level electron beam additives and a preparation method thereof. Background technique [0002] Titanium and titanium alloys have excellent properties such as high specific strength, corrosion resistance, and non-magnetic properties, especially in seawater and acidic hydrocarbon compounds, and are preferred materials for ships and ocean engineering, especially in saline environments. Therefore, titanium alloy is known as "ocean metal". [0003] With the rapid development of additive manufacturing and the continuous updating of marine engineering components and ship equipment, in order to promote the development of my country's marine industry and navy, there is a greater demand for the rapid additive manufacturing technology of large and complex titanium alloy components. For example, rapid manufacturing and in-fli...

Claims

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Application Information

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IPC IPC(8): C22C14/00C22C1/03C22F1/18C21D8/06B21C1/00
CPCB21C1/00C21D8/06C22C1/03C22C14/00C22F1/183
Inventor 张帅锋张建欣于冰冰
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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