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Heat-resistant Al-Cu-Mg-Ag alloy and process for producing a semifinished part or product composed of such an aluminium alloy

An al-cu-mg-ag, semi-finished product technology, used in heat treatment equipment, quenching agents, manufacturing tools, etc., can solve problems such as low static strength and dynamic strength values

Inactive Publication Date: 2014-04-23
OTTO FUCHS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, semi-finished and finished products produced from these alloys have only relatively low static and dynamic strength values

Method used

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  • Heat-resistant Al-Cu-Mg-Ag alloy and process for producing a semifinished part or product composed of such an aluminium alloy
  • Heat-resistant Al-Cu-Mg-Ag alloy and process for producing a semifinished part or product composed of such an aluminium alloy
  • Heat-resistant Al-Cu-Mg-Ag alloy and process for producing a semifinished part or product composed of such an aluminium alloy

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Embodiment Construction

[0062] figure 1 The chemical composition of the alloys of the present invention is shown in comparison to previously known aluminum alloys. On the one hand, those alloys are compared which are capable of producing semi-finished or finished products with high static and dynamic strength properties in a known manner. This concerns alloys AA2014, AA2014A and AA2214. Furthermore, two previously known alloys are compared in relation to particularly good long-term stability under thermal influence. This concerns alloys AA2618 and AA2618A. The previously known alloy AA2016 is also given. The data for the amount of specific alloying elements given in the table is taken from International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys, The Aluminum Association Inc., 1525 Wilson Boulevard, Arlington, April 2006.

[0063] figure 1 The table with "W" designates alloys according to the invention. The comparison of the alloy composi...

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Abstract

A heat-resistant Al-Cu-Mg-Ag alloy for producing semifinished parts or products, which is suitable for use at elevated temperatures and has good static and dynamic strength properties combined with an improved creep resistance and comprises: 0.3-0.7% by weight of silicon (Si), not more than 0.15% by weight of iron (Fe), 3.5-4.7% by weight of copper (Cu), 0.05-0.5% by weight of manganese (Mn), 0.3-0.9% by weight of magnesium (Mg), 0.02-0.15% by weight of titanium (Ti), 0.03-0.25% by weight of zirconium (Zr), 0.1-0.7% by weight of silver (Ag), 0.03-0.5% by weight of scandium (Sc), 0.03-0.2% by weight of vanadium (V), not more than 0.05% by weight of others, individually, not more than 0.15% by weight of others, total, balance aluminium, is described. A process for producing a semifinished part or product composed of the abovementioned aluminium alloy is also described.

Description

technical field [0001] The present invention relates to a heat-resistant Al-Cu-Mg-Ag alloy for the production of semi-finished or finished products, suitable for use at relatively high temperatures, combined with improved creep resistance and high static and dynamic strength performance. The invention also relates to a method for producing semi-finished or finished products made of such an aluminum alloy. Background technique [0002] Alloys of the above-mentioned type are known from EP1518000B1, wherein semi-finished products produced from the above-mentioned type of alloys have high static and dynamic strength properties, as well as improved creep resistance compared to previously known similar aluminum alloys . This alloy is registered by the Aluminum Association (AA) as Alloy AA2016. This previously known alloy already combines the strength properties necessary for semi-finished and finished products that must withstand high static and dynamic loads, known from alloys...

Claims

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Application Information

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IPC IPC(8): C22C21/14C22C21/16C22F1/057
CPCC22F1/057B22D27/00C22C21/14B22D7/005C21D1/60C22C21/00C22C21/16
Inventor 格雷戈尔·特林德托马斯·维图尔斯基马蒂亚斯·希尔珀特
Owner OTTO FUCHS
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