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- Title
Effect of Ball Milling and Spark Plasma Sintering on Microstructure and Properties of MnCu Based Damping Alloy.
- Authors
Lin Huang; Xi He; Wei Fei; YongGang Xu
- Abstract
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 α-Mn and γ-Cu. The microstructure of the alloy sintered at 730°C is mainly composed of γ-MnCu, γ-CuMn and α-Mn. With the increase of sintering temperature, γ-CuMn and α-Mn gradually disappear by the mutual diffusion of Mn and Cu elements. During 850°C sintering, the alloy is mainly single γ-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.
- Subjects
ALLOYS; METALLOGRAPHY of alloys; SINTERING; METALLOGRAPHY of copper alloys; MICROSTRUCTURE
- Publication
Materials Transactions, 2021, Vol 62, Issue 9, p1279
- ISSN
1345-9678
- Publication type
Article
- DOI
10.2320/matertrans.MT-M2021038