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High strength multi-component alloy

a multi-component alloy, high-performance technology, applied in the field of multi-component alloys, can solve the problems of limiting the freedom of formulation for alloys and their applications, limiting the application range, and reducing the strength of this type of alloys

Inactive Publication Date: 2004-12-23
IND TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above alloying design concept limits the freedom of formulation for the alloy and its applications.
The strength of this type of alloy rapidly deteriorates as the temperature increases.
Especially when the temperature gets higher than 500.degree. C., the strength of this type of alloy is almost lower than 200 MPa, which greatly limits its applications.
However, it is hard to further improve their high temperature strength with the currently known compositions.

Method used

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  • High strength multi-component alloy
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Examples

Experimental program
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Embodiment Construction

18.2 18.2 18.2 18.2 18.2 9 Example 2 16.7 16.7 16.7 16.7 16.7 16.5 Example 3 14.3 14.3 14.3 14.3 14.3 28.5

[0014] In the example 1, the multi-component alloy contains 18.2 atom % Fe, 18.2 atom % Co, 18.2 atom % Ni, 18.2 atom % Cr, 18.2 atom % Cu and 9 atom % Al.

[0015] In the example 2, the multi-component alloy contains 16.7 atom % Fe, 16.7 atom % Co, 16.7 atom % Ni, 16.7 atom % Cr, 16.7 atom % Cu and 16.5 atom % Al.

[0016] In the example 3, the multi-component alloy contains 14.3 atom % Fe, 14.3atom % Co, 14.3 atom % Ni, 14.3 atom % Cr, 14.3 atom % Cu and 28.5atom % Al.

[0017] About 2000 g of raw material is formulated according to the compositions shown in Table 1 and melted in a vacuum induction furnace. Then, the melt is poured in a copper mold and solidified to form a cast bulk. The cast ingot is cut and machined to produce a plurality of cylindrical rod of 10 mm in diameter, 15 mm in height.

[0018] Vicker's hardness values for the alloy rod samples are measured by using Matsuzawa ...

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Abstract

A high strength multi-component alloy contains multi-principal elements and is formulated under a design concept different from the prior art. The multi-component alloy contains Fe, Co, Ni, Cr, Cu and Al as main elements. Each main element of the multi-component alloy is in the range of about 5 to about 35 atom % based on the total number of atoms of the alloy. The multi-component alloy has high strength at high temperature.

Description

[0001] 1. Field of Invention[0002] The present invention relates to a multi-component alloy, and particularly relates to a multi-principal-element alloy that has high strength at high temperature.[0003] 2. Related Art[0004] An alloy is made by mixing at least one metal element with one or more metal elements or one or more non-metals. The alloy formed of two kinds of element is called a binary alloy. Similarly, the alloy formed of multiple kinds of element is called a multi-component alloy. Typically, the alloy is based on one or two principal (or main) metal elements. If the alloy is based on Fe, then the alloy can be called a Fe-based alloy, which widely includes steel materials such as alloy steel, tool steel and high-speed steel. If the alloy is based on Al, then the alloy is called an Al-based alloy, which is also well developed. Specially, the superalloy has been widely used in various fields includes Fe-based alloy, Co-based alloy, and Ni-based alloy. Conventionally, the allo...

Claims

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Application Information

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IPC IPC(8): C22C30/00C22C30/02
CPCC22C30/02
Inventor SHUN, TAO-TSUNGYEH, JIEN-WEI
Owner IND TECH RES INST
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