Anti-corrosion Mg-Ni base high-damping alloy and alloying method thereof

A high-damping alloy and corrosion-resistant technology, applied in the field of materials, can solve problems such as poor corrosion resistance

Inactive Publication Date: 2009-12-16
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of poor corrosion resistance in the prior art, the present invention proposes a corrosion-resistant Mg-Ni-based high damping alloy and its alloying method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] This embodiment is an alloying method of a corrosion-resistant Mg-Ni-based high-damping alloy. Based on the Mg-Ni high-damping alloy, 3wt.% Ni and 1wt.% Mn are added, and Ni and Mn are respectively Mg-30wt .%Ni and Mg-5.5wt.%Mn are added in the form of master alloy, and Mg is industrial pure magnesium.

[0016] The preparation method of this embodiment is:

[0017] The first step is to preheat the crucible to 250°C, and paint the crucible coating for general magnesium alloy melting;

[0018] In the second step, the crucible is heated to 300°C, industrial pure Mg is added to the crucible and CO 2 +0.5vol%SF 6 Mixed gas for protection;

[0019] In the third step, continue to heat up until magnesium is completely melted, then add Mg-Ni and Mg-Mn master alloys at 710°C;

[0020] The fourth step is to continue to heat up to 730 ° C, keep warm and stir to fully melt the master alloy;

[0021] The fifth step, use C 2 Cl 6 Carry out refining treatment, and then pass thro...

Embodiment 2

[0025] This embodiment is an alloying method of a corrosion-resistant Mg-Ni-based high-damping alloy. Based on the Mg-Ni high-damping alloy, 3wt.% Ni and 0.5wt.% Mn are added, and Ni and Mn are respectively replaced by Mg- 30wt.% Ni and Mg-5.5wt.% Mn are added in the form of master alloy, and Mg is industrial pure magnesium.

[0026] The preparation method of this alloy is:

[0027] The first step is to preheat the crucible to 250°C, and paint the crucible coating for general magnesium alloy melting;

[0028] In the second step, the crucible is heated to 300°C, industrial pure Mg is added to the crucible and CO 2 +0.5vol%SF 6 Mixed gas for protection;

[0029] In the third step, continue to heat up until magnesium is completely melted, then add Mg-Ni and Mg-Mn master alloys at 710°C;

[0030] The fourth step is to continue to heat up to 730 ° C, keep warm and stir to fully melt the master alloy;

[0031] The fifth step, use C 2 Cl 6 Carry out refining treatment, and the...

Embodiment 3

[0035] This embodiment is an alloying method of a corrosion-resistant Mg-Ni-based high-damping alloy. Based on the Mg-Ni high-damping alloy, 3wt.% Ni and 0.25wt.% Mn are added, and Ni and Mn are respectively replaced by Mg- 30wt.% Ni and Mg-5.5wt.% Mn are added in the form of master alloy, and Mg is industrial pure magnesium.

[0036] The preparation method of this alloy is:

[0037] The first step is to preheat the crucible to 250°C, and paint the crucible coating for general magnesium alloy melting;

[0038] In the second step, the crucible is heated to 300°C, industrial pure Mg is added to the crucible and CO 2 +0.5vol%SF 6 Mixed gas for protection;

[0039] In the third step, continue to heat up until magnesium is completely melted, then add Mg-Ni and Mg-Mn master alloys at 710°C;

[0040] The fourth step is to continue to heat up to 730 ° C, keep warm and stir to fully melt the master alloy;

[0041] The fifth step, use C 2 Cl 6 Carry out refining treatment, and th...

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Abstract

The invention discloses an anti-corrosion Mg-Ni base high-damping alloy and an alloying method thereof. Mg-Ni high-damping alloy serves as the basis, other alloy elements are added to improve the anti-corrosion performance of the alloy. The alloy elements of the invention are 3wt% of Ni, 0.25-1wt% of Mg-Ni-Mn ternary magnesium alloy of Mn, wherein, Ni and Mn are respectively added in the form of preliminary alloy containing Mg-30wt% of Ni and Mg-5.5wt% of Mn, and Mg is industrial pure magnesium. The invention is obtained by preheating, painting protective coating, smelting, refining and shaping, the solidification structure of the obtained alloy is alpha-Mg+eutectic structure (alpha-Mg+Mg2Ni), Mn is totally in solid solution so as to enter a substrate to improve the electrode potential of alpha-Mg, so that the anti-corrosion performance of the alloy is improved. Meanwhile, the content of Mn in the alloy elements is not high, which brings small effect on alloy damping performance, so that alloy the can keep higher damping performance.

Description

1. Technical field [0001] The invention relates to the field of materials, in particular to a corrosion-resistant Mg-Ni-based high-damping alloy and an alloying method thereof. 2. Background technology [0002] Vibration and noise are one of the important public hazards that accompany the rapid development of modern industry. Over the years, various fields of modern industry have been adopting various means to control the harm caused by vibration and noise, and damping and vibration reduction technology has emerged as the times require. There are three main methods of damping, that is, system damping, structural damping and material damping. Material damping relies on the high damping characteristics of the material itself to achieve the purpose of vibration reduction. Using the material's own damping can reduce design costs and make the system lighter. Therefore, the development of new low-density, high-strength and high-damping structural materials has important strateg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/00C22C1/03C22C1/06B22D21/04
Inventor 王锦程万迪庆杨根仓杨长林
Owner NORTHWESTERN POLYTECHNICAL UNIV
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