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Ultrahigh temperature titanium alloy and preparation method thereof

A titanium alloy and ultra-high temperature technology, applied in the field of titanium alloys, can solve the problems of low tensile properties of titanium alloys, poor stability of high-temperature creep properties, etc., and achieve the effects of low manufacturing cost, low cost, and good scalability

Inactive Publication Date: 2015-07-08
SHENYANG HENGYUNDA TITANIUM DEV
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Problems solved by technology

[0004] However, no matter at home or abroad, the existing titanium alloys basically have the disadvantages of low tensile properties, high temperature durability, high temperature creep and poor stability.

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  • Ultrahigh temperature titanium alloy and preparation method thereof
  • Ultrahigh temperature titanium alloy and preparation method thereof
  • Ultrahigh temperature titanium alloy and preparation method thereof

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those having ordinary skill in the art to which the present invention belongs. "First", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, words like "a", "an" or "the...

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Abstract

The invention provides an ultrahigh temperature titanium alloy and a preparation method thereof. The ultrahigh temperature titanium alloy comprises 6.50-7.50wt% of Al, 3.0-5.0wt% of Sn, 3.0-6.0wt% of Zr, 1.5-3.0wt% of Mo, 1.5-2.5wt% of Nb, 0.7-2.0wt% of W, 0.8-2.0wt% of Nd, 0.2-0.5wt% of Si, and the balance of Ti and impurities. The ultrahigh temperature titanium alloy accords with orientation of the spaceflight titanium market, meets aircraft members, and is obtained by compounding eight alloy elements; a result of test of the mechanical properties of a rod made of the alloy shows that the alloy has good integral properties, and especially high temperature properties; additionally, the preparation method has the advantages of simplified process flow, reasonable arrangement, low cost and easy production; the alloy has market competitiveness; and optimized design reduces the process difficulty and makes the alloy have good expandability.

Description

technical field [0001] The invention relates to the technical field of titanium alloys, in particular to an ultra-high temperature titanium alloy and a preparation method thereof. Background technique [0002] At present, due to its high strength, good plasticity, toughness, and good corrosion resistance, titanium alloys are mainly used to replace high-strength steels as structural materials and spring materials in aerospace vehicles. It has become one of the main research directions of technologies in various countries One, especially the United States and Russia developed earlier in this respect. my country's titanium alloy has experienced more than half a century of development, and has become one of the world's largest titanium countries, but there is still a gap between the world's powerful countries, which is reflected in the specifications and performance of high-end titanium alloy products, especially in the quality of titanium alloys for special purposes. big gap. ...

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Application Information

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IPC IPC(8): C22C14/00C22C1/03
Inventor 陈国财单学锋杨文甲陈苏晁雷张保利
Owner SHENYANG HENGYUNDA TITANIUM DEV
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