Abstract
The influence of alloying elements Er, Zr, Cu, Si and Zn on the crystallization temperature interval, microstructure, mechanical properties and corrosion behavior of Al-Mg-Mn alloy were studied by differential scanning calorimetry (DSC), electron backscatter diffraction (EBSD), X-ray diffraction (XRD), tensile testing, electrochemical measurements and nitric acid mass loss test (NAMLT). The results show that the crystallization temperature range of Al-Mg-Mn alloy with addition of Zn decreased 4.7 °C. Cold rolled alloys mainly contain S texture, Copper texture, Brass texture, and Goss texture; the content of the S texture is the highest. With the addition of trace elements, the second phase Al3Er, Al3Zr, Al2CuMg, Mg2Si and MgZn2 can be formed, which can improve the tensile strength and yield strength of Al-Mg-Mn alloy. The addition of the alloying element Zn can also improve the intergranular corrosion resistance of the Al-Mg-Mn alloy.
Highlights
Al-Mg alloys are widely used in machinery, ship, automobile and other industries, due to its medium strength, high specific strength, good forming property and corrosion resistance [1,2,3].Al-Mg series alloys are non-heat-treated strengthening alloys
Different orientations correspond to the can corresponding colors, which can clearly orientations correspond to the corresponding colors, which clearly reflect the microstructure and reflect the microstructure and texture of the material
As the degree of deformation increases, original deformation increases, the original equiaxed grains will gradually elongate in When the direction of their equiaxed grains will gradually elongate in the direction of their deformation
Summary
Al-Mg alloys are widely used in machinery, ship, automobile and other industries, due to its medium strength, high specific strength, good forming property and corrosion resistance [1,2,3].Al-Mg series alloys are non-heat-treated strengthening alloys. Al-Mg alloys are widely used in machinery, ship, automobile and other industries, due to its medium strength, high specific strength, good forming property and corrosion resistance [1,2,3]. The main strengthening methods are work hardening and microalloying. The production of high-performance aluminum alloy sheets at home and abroad is mainly based on the traditional open billet hot rolling method. The alloys produced in this way are not limited, and the product range is wide; the internal structural properties, surface quality and processing properties of the products are good. The production process has its own inherent shortcomings: long process flow, long production cycle, high energy consumption, high cost, and easy to appear bubbles on the board
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