High-damping Mg-Sn-Ce-Ti alloy

Abstract

The invention discloses a high-damping Mg-Sn-Ce-Ti alloy. The magnesium alloy is composed of Mg, Sn, Ce and Ti and comprises components including, by weight, 0.1% to 0.4% of Sn, 3.3% to 3.9% of Ce, 2.1% to 3.5% of Ti and the balance Mg; according to the topographic characteristics, the alloy is mainly composed of magnesium and a second phase; a second phase structure is in regular parallel distribution. The alloy has the higher damping performance, the requirement of the high-speed developing modern society for the vibration reducing and noise reduction is met, and the higher market popularization and application value and the higher economic benefits are achieved.

Description

technical field [0001] The invention discloses a high-damping Mg-Sn-Ce-Ti alloy, which belongs to the field of preparation and application of multi-element magnesium alloys. Background technique [0002] Magnesium and its alloys, as one of the metal structural materials with the best damping performance at present, also have low density, high specific strength and specific stiffness, good thermal and electrical conductivity, strong resistance to dynamic impact loads, excellent electromagnetic radiation shielding ability, and abundant resources. A series of advantages, such as a series of advantages, have attracted more and more attention from people, and have been applied to a certain extent in aerospace, rail transit, 3C products and other fields. With the rapid development of modern society, the increasingly sophisticated and complex instruments and equipment, as well as the diversification of the working environment, put forward more urgent requirements for reducing energ...

AI Technical Summary

Problems solved by technology

However, the existing studies on the damping properties of Mg-Ce alloys are still limited.

[0003] In addition, people have studied the influence of alloying elements with low solid solubility on the damping performance of magnesium, while elements such as Sn and Y with high solid solubility are effective solid solution strengthening elements for magnesium, and many scholars believe that it is not conducive to damping. performance

CN101440438B discloses "the method of adding Ce to refine the CaMgSn phase in the Mg-Sn-Ca series magnesium alloy", which mainly studies the tensile and creep resistance properties, but does not study the influence on the damping properties, and between them no necessary connection

The invention has the advantages of simple process, strong portability, low cost and easy operation, and can be widely used in national defense and civil industries to achieve the functions of light weight, vibration reduction and noise reduction, but its damping performance is still not ideal