Effect of Pre‐Deformation and Subsequent Aging on the Damping Capacity of Mn‐20 at.%Cu‐5 at.%Ni‐2 at.%Fe alloy

Jin, Yan; Li, Ning; Xu, Feng; Liu, Wenbo; Liu, Ying; Zhao, Xiuchen

doi:10.1002/adem.201400507

Cited by 9 publications

(1 citation statement)

References 16 publications

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“…[Insert Figure 5 shows the dependency of damping capacity on strain-amplitude for the as-cast MnCuNiFeZnAl alloy specimens 1#-7# and as-cast M2052. The results show that the damping capacity of specimen 1# is higher than that of cast M2052 alloy (as shown in [Insert Figure 5 (a)) and the traditional forged M2052 high damping alloy mentioned in literatures [20][21] . Moreover, the damping capacity of original as-cast MnCuNiFeZnAl alloy can be further improved by subsequently homogenization-aging, solution-aging and aging treatments (as shown in [Insert Figure 5(b), (c)), among which aging treatment for 2 hrs can lead to the highest damping capacity.…”

Section: Representative Resultsmentioning

confidence: 69%

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature

Liu¹,

Liu²,

Li³

et al. 2018

JoVE

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Manganese-copper based alloys have been found to have damping capacity and can be used to reduce harmful vibration and noise effectively. M2052 (Mn-20Cu-5Ni-2Fe, at. %) is an important branch of Mn-Cu based alloys, which possesses both excellent damping capacity and processability. In recent decades, lots of studies have been carried out on the performance optimization of M2052, including improving the damping capacity, mechanical properties, corrosion resistance and service temperature etc. The major methods of performance optimization are alloying, heat treatment, pretreatment, different ways of molding etc., among which alloying as well as adopting reasonable heat treatment is the simplest and the most effective method to obtain perfect and comprehensive performance. To obtain the M2052 alloy with excellent performance for casting molding, the research group proposes to add Zn and Al in the MnCuNiFe alloy matrix and uses a variety of heat treatment methods for comparison in microstructure, damping capacity and service temperature. Finally, a new type of cast-aged Mn-22.68Cu-1.89Ni-1.99Fe-1.70Zn-6.16Al (at. %) alloy with superior damping capacity and high service temperature was obtained by an optimized heat treatment method. Compared with forging technique, cast molding is simpler, more efficient and the damping capacity of this ascast alloy is excellent. Therefore, there is a suitable reason to think that it is a good choice for engineering applications. INTRODUCTION:Since the manganese-copper alloys were found to have damping capacity by Zener 1 , they have received widespread attention and research 2 . The advantages of Mn-Cu alloy are that it has high damping capacity, especially at low strain amplitudes, and its damping capacity cannot be disturbed by magnetic field, which is quite different from ferromagnetic damping alloy. The

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Section: Representative Resultsmentioning

confidence: 69%