Nickel-containing high-toughness controllable degradation magnesium alloy material as well as preparation method and application thereof

A magnesium alloy, high-strength technology, applied in the field of nickel-containing high-strength toughness controllable degradable magnesium alloy materials and its preparation, can solve the problems of increased construction period and cost, difficult backflow of fragments, difficult drilling and milling, etc., to improve construction efficiency , Eliminate the drilling and grinding recovery process and reduce the difficulty of the project

Active Publication Date: 2019-02-01
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the commonly used isolation tools are made of steel, which has the disadvantages of difficult drilling and milling, long time consumption, and difficult backflow of powder and fragments after drilling, which greatly increases the construction period and cost.

Method used

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  • Nickel-containing high-toughness controllable degradation magnesium alloy material as well as preparation method and application thereof

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preparation example Construction

[0067] According to the second aspect of the present invention, the present invention provides a method for preparing the above-mentioned nickel-containing high-strength toughness controllable degradation magnesium alloy material, comprising the following steps:

[0068] The nickel source, the magnesium source and the rare earth source are uniformly mixed and alloyed to obtain a nickel-containing high-strength toughness controllable degradation magnesium alloy material.

[0069] The preparation method of the nickel-containing high-strength toughness controllable degradable magnesium alloy material provided by the invention has simple process, convenient operation, easy industrialized large-scale production and low cost.

[0070] In a preferred embodiment of the present invention, the alloying treatment includes a melting casting method and a powder alloying method.

[0071] In a preferred embodiment of the present invention, the nickel source is selected from simple nickel and...

Embodiment 1

[0101] This embodiment provides a nickel-containing high-strength toughness controllable degradation magnesium alloy material, including the following components by mass percentage: Ni: 6.9%, Y: 18%, the balance is Mg and unavoidable impurities; wherein, Mg, Ni and Y form Mg 12 YNi type long period phase, Mg 5 Y phase and Mg 2 Ni phase, Mg 12 The volume fraction of YNi-type long-period phase is 66%, Mg 5 The volume fraction of Y phase is 4%, Mg 2 The volume fraction of the Ni phase is 2%.

[0102] The preparation method of the nickel-containing high-strength toughness controllable degradation magnesium alloy material provided in this embodiment includes the following steps:

[0103] (1) Accurate batching according to the formula quantity; wherein, nickel source, yttrium source and magnesium source are added in the form of magnesium-yttrium alloy and nickel-yttrium alloy;

[0104] (2) Casting: use resistance furnace or power frequency induction furnace for melting, use ar...

Embodiment 2

[0107] This embodiment provides a nickel-containing high-strength and toughness controllable degradation magnesium alloy material, including the following components by mass percentage: Ni: 2.3%, Y: 5.3%, the balance is Mg and unavoidable impurities, the balance Mg and unavoidable impurities; among them, Mg, Ni and Y form Mg 12 YNi type long period phase, Mg 5 Y phase and Mg 2 Ni phase, Mg 12 The volume fraction of YNi-type long-period phase is 23%, Mg 5 The volume fraction of Y phase is 6%, Mg 2 The volume fraction of the Ni phase is 1.8%.

[0108]The preparation method of the degradable magnesium alloy material provided in this example is the same as that of Example 1, and will not be repeated here.

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Abstract

The invention provides a nickel-containing high-toughness controllable degradation magnesium alloy material as well as a preparation method and application thereof, and relates to the technical fieldof magnesium alloys. The magnesium alloy material comprises the following components, by mass, of 0.3-8.5% of Ni, 0.5-28% of RE and the balance Mg and inevitable impurities, wherein the RE refers to arare earth element. According to the magnesium alloy material, an Mg12RENi type long-period phase, an Mg2Ni phase and an MgxREy phase are introduced by adding the Ni and RE elements, so that the mechanical property of the alloy material is remarkably improved, and the tensile strength can be up to 510 MPa; and meanwhile, the existence of the Mg12RENi type long-period phase and the Mg2Ni phase enables the alloy material to be controllably degraded, and the degradation rate can be adjusted from 360 mm / a to 2400 mm / a. The magnesium alloy is utilized to manufacture an underground fracturing tool,so that the technical problems existing in an existing underground tool are solved, and the requirements of the oil and gas development field are met.

Description

technical field [0001] The invention relates to the technical field of magnesium alloys, in particular to a nickel-containing high-strength toughness controllable degradation magnesium alloy material and a preparation method and application thereof. Background technique [0002] With the rapid development of the economy, the oil problem in our country has become one of the important issues that the whole country pays attention to. Therefore, it is an important measure for our country to strengthen the country and rejuvenate the country by increasing the intensity of domestic oil extraction and improving the efficiency of oil extraction. It is urgent to explore new technologies and develop new materials. [0003] China is rich in low-permeability oil and gas resources and has great potential for exploration and development. The future stability and increase of oil and gas production will largely depend on low-permeability unconventional oil and gas resources. However, most ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/06C22C23/00C22F1/06
CPCC22C23/00C22C23/06C22F1/06B22D7/005C22C1/02
Inventor 王敬丰高诗情刘世杰王奎潘复生
Owner CHONGQING UNIV
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