Novel cast-aged MnCuNiFeZnAl alloy with good damping capacity and high usage temperature toward engineering application

Liu, Wenbo; Li, Ning; Zhong, Zhen; Jin, Yan; Dong, Li; Liu, Ying; Zhao, Xiuchen; Shi, San-Qiang

doi:10.1016/j.matdes.2016.05.098

Cited by 52 publications

(14 citation statements)

References 30 publications

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“…[ 7 ] Liu et al prepared a Mn–26Cu–2Ni–2Fe–2Zn–3Al alloy and cast it into a silica‐sand mold. [ 4 ] They found that the highest nanoscale Mn segregation due to spinodal decomposition in Mn dendrites results in the largest Q −1 at a strain amplitude of 2 × 10 −4 . In fact, from the phase distribution characteristics in Figure 3, the Mn segregation leads to more FCT phase forming in dendritic trunks and their size reaches several micrometers.…”

Section: Discussionmentioning

confidence: 99%

“…al found that the as‐cast Mn–26Cu–2Ni–2Fe–2Zn–3Al alloy owns a high damping capacity after undergoing aging treatment at 435 °C for 2 h, which is ascribed to the nanoscale Mn segregation in Mn dendrites. [ 4 ] Tian et al prepared directionally solidified Mn–Cu–Ni–Fe alloy under different pulling rates. They believed that the prominent damping improvement is certainly attributed to the casting microstructures.…”

Section: Introductionmentioning

confidence: 99%

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Amplifying Mn Segregation and Enhancing Damping Capacity via Adding Sn in Mn–44Cu–1.5Al as‐Cast Alloys

Xu,

Guo

et al. 2023

Adv Eng Mater

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As a metal functional material, the Mn‐Cu based alloys are regarded to be able to cope with the vibration and noise from machines. In particular, the as‐cast alloys often exhibit an excellent damping capacity, which has been attributed to the Mn segregation in the alloys. In this paper, to amplify the kind of segregation, a trace of Sn was added in as‐cast Mn‐Cu‐Al alloys. The phase structures of the as‐cast Mn‐44Cu‐1.5Al alloys were analyzed in detail through X‐ray diffraction (XRD). The FCC/FCT distribution characteristics were observed using electron backscatter diffraction (BSE). The alloys’ dynamic mechanical spectrums and internal friction (IF) were measured using an inverted torsion pendulum device. It is found that the addition of Sn promotes the Mn segregation in the as‐cast Mn‐44Cu‐1.5Al alloys. A large amount of FCT phases appear in the dendritic trunks, enhancing the damping capacity of the alloys. In the meantime, the Sn atoms enhance the twin boundary mobility in Mn‐rich dendritic trunks. As a result, the alloy containing 1 wt. % Sn own the highest damping capacity in the alloys.This article is protected by copyright. All rights reserved.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Amplifying Mn Segregation and Enhancing Damping Capacity via Adding Sn in Mn–44Cu–1.5Al as‐Cast Alloys

Xu,

Guo

et al. 2023

Adv Eng Mater

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“…In the SPS850 alloy, the (220) and (202) diffraction peaks formed by the splitting of the characteristic diffraction peaks of the (220) crystal plane indicate that the fcc to fct structure transformation has occurred, and the martensite structure of the fct structure is formed. 12,17,18) Table 1 shows the compactness of sintered alloys. As the sintering temperature increases, the compactness increases.…”

Section: Microstructure Of Sps Alloysmentioning

confidence: 99%

Effect of Ball Milling and Spark Plasma Sintering on Microstructure and Properties of Mn–Cu Based Damping Alloy

Huang

Wei

et al. 2021

Mater. Trans.

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In the present study, a MnCu-based damping alloy with a nominal composition of Mn25Cu2Al was produced by ball milling and spark plasma sintering. The phase composition, microstructure, compactness, micro-hardness, damping capacity of these materials were systematically investigated. Experimental results show that the ball milling mixed particles are mainly composed of ¡-Mn and £-Cu. The microstructure of the alloy sintered at 730°C is mainly composed of £-MnCu, £-CuMn and ¡-Mn. With the increase of sintering temperature, £-CuMn and ¡-Mn gradually disappear by the mutual diffusion of Mn and Cu elements. During 850°C sintering, the alloy is mainly single £-MnCu solid solution. At the same time, as the sintering temperature increases, the compactness and damping capacity of the alloys increases and the micro-hardness decreases.

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“…The enhancement on damping capacity of Mn-Cu alloys has been associated with the Mn segregation at macro/nanoscale caused by spinodal decomposition during aging treatment [5]. As a kind of cold physical field, magnetic field can transfer magnetisation energy to the atomic scale of materials without direct contacting, and affect the migration and arrangement of atoms to influence the macroscopic properties.…”

Section: Introductionmentioning

confidence: 99%

Tuning ultra-high damping capacity of Mn–Cu alloy to fit wide-range service temperature

Zhang

Tian

et al. 2022

Materials Science and Technology

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Mn–Cu-based damping alloy prepared by directional solidification is very promising for vibration and noise control. Aging treatment with and without application of magnetic field on the microstructure and damping performance of directionally solidified Mn–Cu alloy was studied by means of X-ray diffraction, differential scanning calorimetry, dynamic thermal mechanical analysis and scanning electron microscope. It is found that aging treatment makes the orientation shift from (200) to (111), and aging treatment under magnetic field helps Mn–Cu alloy keep high damping in the wide temperature range. The polymorphic microstructure characterised by fine twin bands with low-angle misorientation boundaries leads to a substantial increase of twin boundary internal friction up to several times higher than that of polycrystalline state.

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Novel cast-aged MnCuNiFeZnAl alloy with good damping capacity and high usage temperature toward engineering application

Cited by 52 publications

References 30 publications

Amplifying Mn Segregation and Enhancing Damping Capacity via Adding Sn in Mn–44Cu–1.5Al as‐Cast Alloys

Amplifying Mn Segregation and Enhancing Damping Capacity via Adding Sn in Mn–44Cu–1.5Al as‐Cast Alloys

Effect of Ball Milling and Spark Plasma Sintering on Microstructure and Properties of Mn–Cu Based Damping Alloy

Tuning ultra-high damping capacity of Mn–Cu alloy to fit wide-range service temperature

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