Damping performance and martensitic transformation of rapidly solidified Fe-17%Mn alloy

作     者：Na Yan Delu Geng Bingbo Wei Na Yan;Delu Geng;Bingbo Wei

作者机构：School of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi’an 710072China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2022年第117卷第22期

页      面：1-7页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 52074230, 52088101 and 51871186) the Fundamental Research Funds for the Central Universities 

主　　题：Damping performance Rapid solidification Martensitic transformation Stacking fault probability 

摘      要：The rapid solidification of Fe-17%Mn alloy was performed to investigate the influence of cooling rate on its damping performance and martensitic transformation mechanism. A proper heat treatment was also carried out to clarify its coupled effects with rapid solidification. The stacking fault probability and martensitic transformation temperature were determined to demonstrate their relationship with the cooling rate and the heat treatment process. With the increase of cooling rate, the volume fraction of ε-martensite increased and the stacking fault probability of ε-martensite was enhanced. The formation ofε-martensite phase was remarkable for the increase of damping capacity and microhardness. It was found that rapid solidification was beneficial for the formation of ε-martensite and the improvement of damping capacity. This effect can be facilitated by the incorporation of the heat treatment process.