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Titanium alloy plate and machining method

A processing method and technology of titanium alloy, applied in the field of titanium alloy sheet and processing, can solve the problems of unsatisfactory comprehensive mechanical ability and high manufacturing cost of titanium alloy, and achieve the effects of improving room temperature and high temperature strength, reducing weight and improving elastic modulus

Inactive Publication Date: 2018-07-13
北京德勤伟业航空投资管理有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a titanium alloy plate and a processing method to solve the technical problems of unsatisfactory comprehensive mechanical capabilities of titanium alloys and high manufacturing costs in the prior art

Method used

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  • Titanium alloy plate and machining method
  • Titanium alloy plate and machining method
  • Titanium alloy plate and machining method

Examples

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Embodiment 1

[0030] This embodiment provides a titanium alloy plate, which is composed of the following components in weight percentage: 5.5% to 7.5% Al, 0.5% to 2% Cr, 0.8% to 2.8% Fe, 0.5% to 1.5% Mo, 0.8% ~2% Sn, the balance being Ti and unavoidable impurities.

[0031] In this embodiment, 5.5% to 7.5% of the α-stabilizing element Al is added to increase the room temperature and high temperature strength of the alloy, reduce the weight of the alloy, and increase the elastic modulus of the alloy. Among them, when the weight percentage of Al is lower than 5.5%, superplasticity cannot be guaranteed in a wide temperature range, and when the weight percentage of Al is higher than 7.5%, Ti 3 Al precipitates and workability deteriorates. Moreover, it can be understood that the weight percentage of Al can vary in a range of 0.1%, that is, the weight percentage of Al can be 5.5%, 5.6%, 5.7%...7.4%, 7.5%.

[0032] In this embodiment, 0.5%-2% of eutectoid β-stabilizing element Cr is added to inc...

example 1

[0037] Example 1: The titanium alloy plate is composed of the following components in weight percentage: 5.5% Al, 0.5% Cr, 0.8% Fe, 0.5% Mo, 0.8% Sn, and the balance is Ti and unavoidable impurities. The tensile strength R of the titanium alloy plate m (MPa), yield strength R p0.2(MPa), elongation (%) are: 903MPa, 802MPa and 11%, respectively.

example 2

[0038] Example 2: The titanium alloy plate is composed of the following components in weight percentage: 6.0% Al, 1.0% Cr, 1.0% Fe, 1.0% Mo, 1.2% Sn, and the balance is Ti and unavoidable impurities. The tensile strength R of the titanium alloy plate m (MPa), yield strength R p0.2 (MPa), elongation (%) are: 956MPa, 857MPa and 9%, respectively.

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Abstract

The invention relates to the technical field of titanium alloy preparation, in particular to a titanium alloy plate and a machining method. The titanium alloy plate is composed of, by weight, 5.5%-7.5% of Al, 0.5%-2% of Cr, 0.8%-2.8% of Fe, 0.5%-1.5% of Mo, 0.8%-2% of Sn, and the balance Ti and inevitable impurities. The titanium alloy plate provided by the invention has good overall performance,the manufacturing cost is reduced with selection of cheap raw materials each to obtain, and titanium alloys of different toughness levels are obtained through densifying treatment on ingots and control over technical conditions of rolling treatment and heat treatment.

Description

technical field [0001] The invention relates to the technical field of titanium alloy preparation, in particular to a titanium alloy plate and a processing method. Background technique [0002] At present, my country began research on titanium and titanium alloys in early 1956; in the mid-1960s, industrial production of titanium materials began and developed into TB2 alloys. Titanium alloys are mainly used in the manufacture of aircraft engine compressor components, followed by structural parts of rockets, missiles and high-speed aircraft. In the mid-1960s, titanium and titanium alloys have been used in general industries for the manufacture of electrodes in the electrolysis industry, condensers in power stations, heaters for petroleum refining and seawater desalination, and environmental pollution control equipment. Titanium and its alloys have become a corrosion-resistant construction material. In addition, it is also used in the production of hydrogen storage materials ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/03B21C37/02C22F1/18
CPCC22C14/00B21C37/02C22C1/03C22F1/183
Inventor 郝斌
Owner 北京德勤伟业航空投资管理有限公司
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