What Is the Role of Aluminum Alloy Profile in High-speed Iron?
Author： WJW Aluminum Window Manufacturers
What is the role of aluminum alloy profiles in high -speed iron? The most common aerospace structure components are made of aluminum and alloy steel. These materials have a light weight and high strength, with good heat resistance and corrosion resistance. These properties make it an ideal choice for aircraft and other high -speed vehicles.
However, they also need complicated squeezing processes to ensure that they form a long and straight part.
In addition, they need to resist deformation during the production process to maintain their strength and durability at the best level. In the data, the mechanical property of co-squeezing composite profiles composed of aluminum alloy EN AW-6082 and carburizing quenching steel 20mNCR5 was studied through LACE. Then perform the POT and SCT test on the obtained profile to determine its binding strength. The results of POT show that the packaging material shows a high binding intensity in its entire length. The cutting strength measured by SCT is slightly lower in the early stage of the section, but it has increased significantly in the last paragraph. This is mainly due to the different thermal expansion coefficients of aluminum and steel, which leads to contraction during cooling. This leads to forming metal seams at the interface between materials. This section is composed of a combination of different grayscale, indicating that the elements diffuse from each other, and the plateau indicates that the crystallization is formed. When comparing the BSE image of the X5CRNI18-10 and EN AW-6082 samples, the former's connector area is clearly visible, and the latter's EDS measurement does not display the transition area.
Determine the diffusion of alloy element CR and Ni to aluminum through the slope of the return line. This is a value corresponding to the corresponding value of 20mNCR5, which has spread by 0.3 m in aluminum. Use a field with ion beam to scan the electronic microscope to prepare a thin piece from the interface between the two materials. This is for the faster removal rate of the minimum aluminum, and the interface of a uniform shape in the hybrid profile. Using EDS analysis, the transition from aluminum to iron can be observed in the LACE co -squeezed coexistence area.
In addition, the concentration distribution of metal can be determined. It can be seen from the results that the packet layer of aluminum alloy EN AW-6082 and steel pipe 20mncr5 does not show a single crispy breakage area in the entire co-squeezed material cross section. This is because the different thermal expansion coefficients of the material are not allowed to break on the process of crispy, which will cause cracks at the interface between materials. The resulting co-squeezed composite material is squeezed by aluminum alloy EN AW-6082 and 20mNCR5 hardening steel pipes, and its mechanical property is the same as the previously released single profile [18].
In addition, different connection mechanisms can be observed in POT and SCT.
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