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Zn-Mn series zinc alloy and preparing method and application thereof

A zinc alloy, zn-mn technology, used in prostheses, surgery, coatings, etc., can solve problems affecting normal bone growth, achieve good histocompatibility and hemocompatibility, excellent elongation, mechanical properties excellent effect

Active Publication Date: 2017-12-12
PEKING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, manganese excess can also affect the normal growth of bone

Method used

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  • Zn-Mn series zinc alloy and preparing method and application thereof
  • Zn-Mn series zinc alloy and preparing method and application thereof
  • Zn-Mn series zinc alloy and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Embodiment 1, preparation as-cast Zn-Mn series alloy

[0073] Using pure Zn (99.99wt.%) and pure Mn (99.95wt.%) (purchased from Huludao Zinc Industry Co., Ltd.) as raw materials, according to different mass ratios (the mass ratios of Zn and Mn are 98:2, 98.5 respectively : 1.5, 99: 1, 99.2: 0.8, 99.6: 0.4, 99.9: 0.1) mixing, in CO 2 +SF 6 Under atmosphere protection, smelting at 800 ° C, after the raw materials are fully melted, after 10 minutes of heat preservation, the circulating water is rapidly cooled, and a Zn-Mn alloy ingot (that is, the Zn-Mn alloy of the present invention, such as figure 1 shown), wherein Zn-0.1Mn means that the mass ratio of Zn to Mn is 99.9:0.1, Zn-0.4Mn means that the mass ratio of Zn to Mn is 99.6:0.4, and Zn-0.8Mn means that the mass ratio of Zn to Mn is 99.2:0.8.

Embodiment 2

[0074] Embodiment 2, preparation extruded state Zn-Mn series alloy

[0075]First, the as-cast Zn-Mn alloy ingot is prepared according to the steps in Example 1 of the present invention, and the Zn-Mn alloy bar is prepared by extrusion (that is, the Zn-Mn zinc alloy of the present invention, such as figure 2 As shown), radial extrusion is adopted, the ingot is held for 2 hours, the holding temperature is 260°C, the extrusion temperature is 260°C, the extrusion ratio is 36, and the extrusion speed is 1mm / s to prepare a Zn-Mn alloy with a diameter of 10mm bar.

Embodiment 3

[0076] Embodiment 3, Zn-Mn series alloy microstructure analysis

[0077] The Zn-Mn alloy rod in Example 2 of the present invention was prepared by wire cutting to prepare a φ10x1mm sample, which was sequentially ground and polished by 400#, 800#, 1200# and 2000# SiC sandpaper series. After ultrasonic cleaning in acetone, absolute ethanol and deionized water for 15 min, dry at 25 °C. The sample was subjected to X-ray diffraction analysis, etched with 4% nitric acid alcohol for 5-30 seconds, washed with deionized water, dried, and observed under a metallographic microscope.

[0078] image 3 It is the metallographic picture of Zn-Mn alloy, from image 3 It can be seen that after extrusion, the crystal grains are fine, and the needle-like second phase is evenly distributed on the matrix. Figure 4 is the X-ray diffraction pattern, given by Figure 4 It can be seen that after adding Mn, the crystal structure of pure zinc changes, but the change is not obvious until adding 0.8w...

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Abstract

The invention discloses a Zn-Mn series zinc alloy and a preparing method and application thereof. The Zn-Mn series zinc alloy comprises Zn and Mn, wherein by weight percent, the mass percent of Mn in the zinc alloy ranges from 0% to 30%, however the mass percent of the Mn cannot be 0. The preparing method comprises following steps: firstly, Zn and Mn are mixed, and a mixture is obtained; secondly, the mixture is treated according to the step of a or b, cooling is carried out, and the zinc alloy is obtained, wherein under the CO2 and SF6 atmosphere protection, the mixture is smelted or sintered, and under the vacuum atmosphere protection, hydrogen is dissolved in the mixture to be smelted. The prepared Zn-Mn series zinc alloy is excellent in mechanical property, long-term effective mechanical support is provided in the machine body, the excellent cellular biocompatibility, blood compatibility and tissue and organ compatibility can be achieved, and the alloy can be used for preparing of biomedical implant materials.

Description

technical field [0001] The invention relates to a Zn-Mn series zinc alloy and its preparation method and application, belonging to the field of medical metal material preparation and technology. Background technique [0002] Biomedical materials currently used in clinical practice mainly include biomedical metal materials, inorganic materials, polymer materials, composite materials, and bionic materials. Biomedical metal materials are metals or alloys used as biomedical materials. These materials have high mechanical strength and fatigue resistance, and are the most widely used load-bearing implant materials in clinical practice. The application of this kind of material is very extensive, covering various aspects such as hard tissue, soft tissue, artificial organs and shell auxiliary equipment. In addition to requiring such materials to have good mechanical properties and related physical properties, excellent physiological corrosion resistance and biocompatibility are also...

Claims

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Application Information

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IPC IPC(8): C22C18/00A61L17/10A61L17/12A61L17/14A61L27/04A61L27/30A61L27/32A61L27/34A61L27/54A61L27/58
CPCA61L17/10A61L17/105A61L17/12A61L17/145A61L27/047A61L27/306A61L27/32A61L27/34A61L27/54A61L27/58A61L2430/02A61L2430/12C22C18/00
Inventor 郑玉峰杨宏韬李华芳曲新华戴尅戎
Owner PEKING UNIV
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