Mössbauer and electron microscopy study of martensitic transformations in an Fe-Mn-Mo alloy |
| |
Authors: | T Kırındı U Sarı M Kurt |
| |
Institution: | (1) Department of Computer Education and Instructional Technology, Kırıkkale University, Yahsihan Campus, 71450 Kırıkkale, Turkey;(2) Department of Elementary Education, Elementary Science Education, Kırıkkale University, Yahsihan Campus, 71450 Kırıkkale, Turkey |
| |
Abstract: | The kinetic, morphological, crystallographic, and magnetic characteristics of thermally induced martensites in Fe-13.4wt% Mn-5.2wt% Mo alloy were investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Mössbauer spectroscopy. The experimental results reveal that two types of thermal-induced martensites, ? (hcp) and α′ (bcc) martensites, are formed in the as-quenched condition, and these transformations have athermal characters. Mo addition to the Fe-Mn alloy does not change the coexistence of ? and α′ martensites with the Mn content between 10wt% and 15wt%. Besides, Mössbauer spectra reveal a paramagnetic character with a singlet for the γ (fcc) austenite and ? martensite phases and a ferromagnetic character with a broad sextet for the α′ martensite phase. The volume fraction of α′ martensite forming in the quenched alloy is much more than that of the ? martensite. |
| |
Keywords: | |
本文献已被 万方数据 SpringerLink 等数据库收录! |
|