Method and system for preparing multi-scale precipitated nano heterogeneous magnesium alloy plates

A magnesium alloy, multi-scale technology, applied in manufacturing tools, metal rolling, metal rolling, etc., can solve the problems of difficult interface oxidation control, affect product quality, low production efficiency, etc., and achieve large microstructure design directionality and flexibility, reducing control difficulty, and improving efficiency

Active Publication Date: 2020-07-14
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its limitations are: (1) the stacked rolling process needs to cut the material multiple times, the process is complicated, and the production efficien

Method used

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  • Method and system for preparing multi-scale precipitated nano heterogeneous magnesium alloy plates
  • Method and system for preparing multi-scale precipitated nano heterogeneous magnesium alloy plates
  • Method and system for preparing multi-scale precipitated nano heterogeneous magnesium alloy plates

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Embodiment 1

[0047] In the following, the present invention will be further described in detail in conjunction with the embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and provides detailed implementation methods and operating procedures.

[0048] (1) Choose a length of 0.6m, a width of 0.4m, a Mg-3Y magnesium alloy plate 3 of 3mm and a Mg-10Y magnesium alloy plate 4 of the same size, and polish the surface of the selected magnesium alloy plate and cleaning to remove surface oil and scale, and stack the Mg-3Y magnesium alloy plate 3 on top of the Mg-10Y magnesium alloy plate 4.

[0049] (2) Set the speed of the upper and lower rolls of the three-roll asynchronous rolling mill 1, the speed of the upper roll 2 is 6rpm, and the lower roll is 12rpm, and the two stacked plates are rolled into bars by the three-roll asynchronous rolling mill. The left end of the upper roll 2 stretches out from the part of the three-high rolling mill,...

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Abstract

The invention belongs to the field of material preparation, and particularly relates to a method for preparing multi-scale precipitated nano heterogeneous magnesium alloy plates. The method comprisesthe following steps of rolling, wherein a plurality of magnesium alloy plates with two or more aging precipitation behaviors are alternately stacked and then rolled into bars; rolling, wherein the bars are rolled to prepare a multi-layer heterogeneous magnesium alloy thick plate blank; hot rolling, wherein the layer thickness is reduced through hot rolling, the interface bonding degree is improved, and the multi-layer heterogeneous magnesium alloy plates are prepared; and multi-scale precipitation, wherein multi-scale precipitation in the heterogeneous magnesium alloy plates is regulated and controlled through solid solution and aging treatment, and the multi-scale precipitation reinforced nano heterogeneous magnesium alloy plates are obtained. The heterogeneous magnesium alloy plates areprepared through a double-alloy or multi-alloy rolling and hot rolling method, and has great microstructure design directivity and flexibility. The prepared alloy has toughness and strength of a softphase and a hard phase, and the high-strength and high-toughness double-system or multi-system precipitation reinforced magnesium alloy with excellent comprehensive performance is obtained.

Description

technical field [0001] The invention belongs to the field of material preparation, and in particular relates to a method and system for preparing multi-scale precipitated nano-heterogeneous magnesium alloy plates. Background technique [0002] Magnesium alloy is currently the lightest metal structural material in practical application. It has the characteristics of high specific strength and specific stiffness, good shock absorption, and excellent environmental protection characteristics. application. However, magnesium alloys also have the problems of low strength and poor plasticity. A large number of studies have shown that precipitation strengthening can improve the strength of magnesium alloys, but the plasticity of aging precipitation-strengthened magnesium alloy materials is greatly reduced, which limits the application of precipitation-strengthened magnesium alloys in actual production. Therefore, how to combine high strength and high plasticity has become a resear...

Claims

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Application Information

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IPC IPC(8): B21B1/38B21B47/00B21B15/00C21D9/00
CPCB21B1/38B21B15/0035B21B47/00B21B2001/386B21B2201/06C21D9/0081
Inventor 周浩廖阳许梦凝陈雪飞刘亿徐涛肖礼容李玉胜曹阳
Owner NANJING UNIV OF SCI & TECH
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