C-metamorphic Mo-W-RE high-strength heat-resistant aluminum alloy material and preparation method thereof

An aluminum alloy material and mo-w-re technology, which is applied in the field of aluminum alloy materials and their preparation, can solve the problems of poor casting performance, low high temperature strength of products, and reduction of alloy quasi-solid phase temperature range.

Inactive Publication Date: 2011-04-20
GUIZHOU HUAKE ALUMINUM MATERIAL ENG TECH RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0033] The technical problem to be solved by the present invention is to solve the existing problems in the field of high-strength aluminum alloys, such as extensive melt treatment process, poor quality, large thermal cracking tendency, poor casting performance, low product yield, low high-temperature strength, waste materials and slag recycling. For technical problems such as poor usability, guided by high-quality melt, solid solution and phase diagram theory, using C element as a high-efficiency modifier, by optimizing the alloy main element Cu, Mn and rare earth element formula, reducing the quasi-solid phase temp

Method used

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  • C-metamorphic Mo-W-RE high-strength heat-resistant aluminum alloy material and preparation method thereof
  • C-metamorphic Mo-W-RE high-strength heat-resistant aluminum alloy material and preparation method thereof
  • C-metamorphic Mo-W-RE high-strength heat-resistant aluminum alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] Example 1: Cu-1.0%, characteristic microalloying elements-Mo, W, basic microalloying rare earth element-lanthanum La, high-efficiency modification element-C

[0116] (1) Weigh the required alloy elements according to the ingredient calculation table, as follows.

[0117]

[0118] (2) Add an appropriate amount of aluminum ingot to the melting furnace, heat it to melt completely and keep it at 700~800℃; in order to prevent the melt from inhaling too much air, the melting process should be as short as possible and in a closed environment carry out.

[0119] (3) Add Al-Mn, Al-Ti, Al-Mo, Al-W, Al-Zr master alloy or mixed metal additives (including salt compounds) according to the formula ratio, and then add Cu pure metal and Al-Cd master alloy or mixed metal additives, then add C and rare earth element La, and stir evenly.

[0120] Mixed metal additives refer to cake or block non-sintered powder metallurgy products used for adding and adjusting alloy components, including manganese...

Embodiment 2

[0126] Example 2: Cu-4.2%, characteristic microalloying elements-Mo, W, basic microalloying rare earth elements La, Ce mixed rare earths, high-efficiency metamorphic element-C

[0127] (1) Weigh the required alloy elements according to the ingredient calculation table, as follows.

[0128]

[0129]

[0130] (2) Add an appropriate amount of aluminum ingot to the melting furnace, heat it to melt completely and keep it at 700~800℃; in order to prevent the melt from inhaling too much air, the melting process should be as short as possible and in a closed environment carry out.

[0131] (3) Add Al-Mn, Al-Ti, Al-Mo, Al-W, Al-Zr master alloy or mixed metal additives (including salt compounds) according to the formula ratio, and then add Cu pure metal and Al-Cd master alloy or mixed metal additives, then add C and rare earth elements La and Ce mixed rare earths, and stir evenly.

[0132] Mixed metal additives refer to cake or block non-sintered powder metallurgy products used for adding and ...

Embodiment 3

[0138] Example 3: Cu-5.1%, characteristic microalloying elements-Mo, W, basic microalloying rare earth element Eu, high-efficiency metamorphic element-C

[0139] (1) Weigh various alloy elements required according to the following ingredients calculation table, as follows.

[0140]

[0141] (2) Add an appropriate amount of aluminum ingot to the melting furnace, heat it to melt completely and keep it at 700~800℃; in order to prevent the melt from inhaling too much air, the melting process should be as short as possible and in a closed environment carry out.

[0142] (3) Add Al-Mn, Al-Ti, Al-Mo, Al-W, Al-Zr master alloy or mixed metal additives (including salt compounds) according to the formula ratio, and then add Cu pure metal and Al-Cd master alloy or mixed metal additives, then add C and rare earth element Eu, and stir evenly.

[0143] Mixed metal additives refer to cake or block non-sintered powder metallurgy products used for adding and adjusting alloy components, including manga...

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Abstract

The invention discloses a C-metamorphic Mo-W-RE high-strength heat-resistant aluminum alloy material. The aluminum alloy material comprises the following components in percentage by weight: 1.0 to 10.0 percent of Cu, 0.05 to 1.5 percent of Mn, 0.01 to 0.5 percent of Cd, 0.01 to 0.5 percent of Ti, 0.0001 to 0.15 percent of C, 0.01 to 1.0 percent of Zr, 0.01 to 1.0 percent of Mo, 0.01 to 1.0 percent of W, 0.05 to 5 percent of rare earth element and the balance of Al. In the invention, a high-quality melt, solid solution and a phase diagraph theory are taken as guidance, a C element serves as a high-efficiency modifier, and a preferable formula of principal alloy elements, namely Cu, Mn and RE is adopted, so that the alloy quasi solid-phase temperature range is narrowed and problems such as high heat cracking tendency during casting, low strength of a product at a high temperature and the like are solved; and a preferable formula of low-cost multiple microalloying elements is adopted, so that the high-strength heat-resistant aluminum alloy material is finally developed.

Description

Technical field [0001] The invention relates to an aluminum alloy material and a preparation method thereof, in particular to a Mo-W-RE high-strength heat-resistant aluminum alloy material modified by C and a preparation method thereof. Background technique [0002] Aluminum alloy is a relatively young metal material, which only started industrial application in the early 20th century. During the Second World War, aluminum was mainly used to manufacture military aircraft. After the war, due to the sudden drop in the military industry’s demand for aluminum, the aluminum industry began to develop civilian aluminum alloys, and its application range was expanded from the aviation industry to the construction industry, container and packaging industry, transportation, power and electronics industry, Various sectors of the national economy, such as machinery manufacturing and petrochemical industries, are applied to people's daily lives. At present, aluminum is used in a large amount...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C21/12C22C1/02C22C1/03C22C1/06C22F1/04C22F1/057
Inventor 门三泉陈新孟车云张中可胥光酉李祥
Owner GUIZHOU HUAKE ALUMINUM MATERIAL ENG TECH RES
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