An available technique for preparation of new cast MnCuNiFeZnAl alloy with superior damping capacity and high service temperature

Dong Li, Wenbo Liu, Ning Li, Zhenyu Zhong, Jiazhen Yan, Sanqiang Shi

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Manganese (Mn)-copper (Cu)-based alloys have been found to have damping capacity and can be used to reduce harmful vibrations 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, improving the damping capacity, mechanical properties, corrosion resistance, and service temperature, etc. The major methods of performance optimization are alloying, heat treatment, pretreatment, and different ways of molding etc., among which alloying, as well as adopting a reasonable heat treatment, is the simplest and most effective method to obtain perfect and comprehensive performance. To obtain the M2052 alloy with excellent performance for casting molding, we propose to add Zn and Al to the MnCuNiFe alloy matrix and use a variety of heat treatment methods for a comparison in the microstructure, damping capacity, and service temperature. Thus, 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 is obtained by an optimized heat treatment method. Compared with the forging technique, cast molding is simpler and more efficient, and the damping capacity of this as-cast alloy is excellent. Therefore, there is a suitable reason to think that it is a good choice for engineering applications.

Original languageEnglish
Article numbere57180
JournalJournal of Visualized Experiments
Volume2018
Issue number139
DOIs
Publication statusPublished - 23 Sep 2018

Keywords

  • Damping capacity
  • Engineering
  • Heat treatment
  • Issue 139
  • Martensitic transformation
  • Mn-cu-based damping alloys
  • Sand mold casting
  • Service temperature

ASJC Scopus subject areas

  • Neuroscience(all)
  • Chemical Engineering(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)

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