A method for improving the damping performance of high-strength iron-manganese-based damping alloy

Abstract

The invention discloses a method for improving the damping performance of high-strength ferro-manganese-based damping alloy, belonging to the field of damping alloy. The method can be used for remarkably improving the damping performance of high-strength ferro-manganese-based damping alloy and particularly the damping performance of high-strength ferro-manganese-based damping alloy under low strain amplitude. The high-strength ferro-manganese-based damping alloy contains the following elements in percentage by weight: 15-23% of Mn, 0-3% of Co, 0-1% of Si, 0-12% of Cr, 0-1% of Ti, 0-1% of Mg, 0-0.1% of C, 0-0.1% of N and the balance of Fe and unavoidable impurities. The method concretely comprises the following steps: firstly, carrying out solution treatment on ferro-manganese-based damping alloy at the temperature of 800-1100 DEG C for 10 minutes to 2 hours; then, carrying out aging treatment on the ferro-manganese-based damping alloy at the temperature of 50-400 DEG C for 10 minutes to 10 hours; finally, carrying out room temperature deformation at the deformation rate of 1-10%.

Description

technical field

[0001] The invention relates to a damping alloy, in particular to a method for improving the damping performance of a high-strength iron-manganese-based damping alloy. The method can significantly improve the damping performance of the iron-manganese-based damping alloy, especially its damping performance under low strain amplitude. Background technique

[0002] Damping alloys can convert mechanical vibration energy into heat energy and dissipate it in materials and the environment. Therefore, the use of damping alloy materials to design and manufacture various vibration source components can effectively reduce or prevent noise fundamentally. The development of high speed and strong power in modern national defense, industry and transportation not only creates an urgent demand for damping alloys, but also puts forward higher requirements for performance: not only requires alloys to have high damping performance, but also requires high Mechanical behavior. ...

Examples

Embodiment 2

[0013] Embodiment two. The weight percentage content of each element of the Fe-17.82Mn-0.09C damping alloy is as follows: Mn17.82%, C0.09%, the rest is Fe and unavoidable impurities. The specific treatment method of the alloy is as follows: the alloy is solution treated at 1000°C for 30 minutes, then aged at 150°C for 1 hour, and finally deformed at room temperature by 4% to 8%. In order to prove that the present invention can significantly improve the damping performance of high-strength iron-manganese-based damping alloys, especially the damping performance at low strain amplitudes, an alloy that has only been solution treated at 1000°C for 30 minutes is used as a comparative example. According to the provisions of GB / T13665-1992 "Metal damping material damping ability test method torsional pendulum method and bending resonance method", the damping performance of the alloy is tested by the JN-1 Gurley inverted torsion pendulum internal friction tester. figure 2 The damping...

technical field

[0001] The invention relates to a damping alloy, in particular to a method for improving the damping performance of a high-strength iron-manganese-based damping alloy. The method can significantly improve the damping performance of the iron-manganese-based damping alloy, especially its damping performance under low strain amplitude. Background technique

[0002] Damping alloys can convert mechanical vibration energy into heat energy and dissipate it in materials and the environment. Therefore, the use of damping alloy materials to design and manufacture various vibration source components can effectively reduce or prevent noise fundamentally. The development of high speed and strong power in modern national defense, industry and transportation not only creates an urgent demand for damping alloys, but also puts forward higher requirements for performance: not only requires alloys to have high damping performance, but also requires high Mechanical behavior. ...

Examples

Embodiment 2

[0013] Embodiment two. The weight percentage content of each element of the Fe-17.82Mn-0.09C damping alloy is as follows: Mn17.82%, C0.09%, the rest is Fe and unavoidable impurities. The specific treatment method of the alloy is as follows: the alloy is solution treated at 1000°C for 30 minutes, then aged at 150°C for 1 hour, and finally deformed at room temperature by 4% to 8%. In order to prove that the present invention can significantly improve the damping performance of high-strength iron-manganese-based damping alloys, especially the damping performance at low strain amplitudes, an alloy that has only been solution treated at 1000°C for 30 minutes is used as a comparative example. According to the provisions of GB / T13665-1992 "Metal damping material damping ability test method torsional pendulum method and bending resonance method", the damping performance of the alloy is tested by the JN-1 Gurley inverted torsion pendulum internal friction tester. figure 2 The damping...

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