1. Phase composition of cast A356.2 (Sc, La) aluminum alloy It can be seen from the XRD analysis and test results of aluminum alloy (Fig. 1) that the diffraction peak of Al3Sc phase is very weak, and the precipitated Al3Sc phase is relatively small, indicating that the addition of...
The material used in the experiment is A356.2 aluminum alloy. The rare earth elements Sc and La are added in the form of Al-2.01% Sc and Al-9.62% La master alloys respectively. Put A356.2 aluminum alloy into a graphite crucible resistance furnace, and the temperature rises to 740 ℃. After...
Adding rare earth elements into aluminum alloy not only has the effect of modification, but also can improve the mechanical properties. In order to improve the use performance of aluminum alloy and expand its application scope, rare earth alloying technology was used to treat aluminum alloy, and good results...
From the simulation results, it can be seen that the heat loss at the thin wall of the casting is fast, and the feeding channel is blocked after solidification. As the thin wall is not processed and has grid rib structure, it is impossible to set subsidies to realize...
New energy vehicles are regarded as key projects to alleviate energy consumption and environmental problems, and become a key development goal of strategic emerging industries. The front cover of the motor housing (see Figure 1) is an important part of the motor of a new energy vehicle. The front...
1. Fracture morphology Figure 1 shows the fracture morphology of the end cover crack. The crack starts at the back of the end cover groove and extends along the slope to the right angle of the groove, forming a through crack. Clean the fracture surface with alcohol, and observe...
Due to the special operating environment, rail transit trains are subject to impact and vibration during normal operation, so the traction motor structural parts that provide power for trains must have a certain mechanical strength. In order to ensure that the strength of traction motor structure meets the use...
With the continuous improvement of the requirements of aluminum piston manufacturers for increasing production and reducing consumption, aluminum piston manufacturers generally adopt the the first mock examination double cavity casting technology, and put forward higher requirements for the quality of aluminum piston the first mock examination double cavity casting....
1. Size of compound phase Figure 1 shows the microstructure of the defective sample and the normal sample. Through comparison, it can be seen that the compound phase of the defective sample is coarser than that of the normal sample. The maximum size of the compound phase of the...
With the development of industry, higher requirements are put forward for the performance and service life of structural parts made of 5083 aluminum alloy plate. When the end customers process and anodize the parts after accepting the products, they find that there is a serious oxidation color difference in...