Microstructure and damping properties of MnCuNiFeCe alloy

• Published in: Rare Metals Vol. 35; no. 8; pp. 615 - 619
• Main Authors: Lu, Feng-Shuang, Wu, Bin, Zhang, Jian-Fu, Li, Ping, Zhao, Dong-Liang
• Format: Journal Article Book Review
• Language: English
• Published: Beijing Nonferrous Metals Society of China 01.08.2016; Springer Nature B.V
• Subjects: Alloying additive; Alloying elements; Biomaterials; Chemistry and Materials Science; Damping; Damping capacity; Energy; Manganese base alloys; Materials Engineering; Materials Science; Metallic Materials; Microstructure; Nanoscale Science and Technology; Physical Chemistry; Scanning electron microscopy; Transmission electron microscopy; X-射线衍射; 合金元素; 微观结构; 扫描电子显微镜; 晶粒细化; 透射电子显微镜; 阻尼性能; 阻尼能力; Damping properties; Cerium; Mn-Cu alloy
• ISSN: 1001-0521; 1867-7185
• DOI: 10.1007/s12598-016-0702-y

Mn-Cu alloys could exhibit high damping ability and excellent mechanical properties after proper heat treatment. In order to reduce the influence of impurity elements on damping capacity of Mn-Cu alloys, rare ele- ment cerium （Ce） was added into MnCuNiFe alloys. It is indicated that the contents of C, S and Si which have adverse effects on the damping capacity decrease and the grains are refined with the Ce content increasing. The microstructure of the MnCuNiFeCe alloy was investigated by X-ray diffraction （XRD）, scanning electron microscope （SEM） and transmission electron microscopy （TEM）. The damping ability （tane） of the alloy was characterized by dynamical mechanical analyzer （DMA）. It is found that the damping ability （tane） retains a very high level which is all above 0.05 from the temperature of -50 to 75 ℃ with the addition of Ce element. It is expected that the Ce alloying MnCuNiFe alloy with refined grains could find wide applications in the field of industry.