Abstract
Fe-17Mn alloy has been attracted as a high damping alloy due to its excellent damping capacity and tensile properties. For its industrial application, it is necessary to improve both wear resistance and anti-oxidation. To solve this problem, gas nitriding was performed at 520 °C for 10 h using cold-rolled specimens. The nitrided specimen revealed a thick nitride layer of ~ 68 μm with ~ 20%Mn and a hardness value of ~ 650 Hv on the matrix of ε martensite and γ austenite without the diffusion layer. The damping capacity of the nitrided specimen was decreased with increasing the thickness ratio of nitride layer to matrix. However, when the thickness ratio was ≤ 1.5%, the damping capacity of the nitrided specimen was similar to that of the nitride-free specimen. This indicates that the wear resistance and anti-oxidation of Fe-17Mn alloy can be improved by a thin nitride layer without the loss of its damping capacity.
| Original language | English |
|---|---|
| Pages (from-to) | 135-139 |
| Number of pages | 5 |
| Journal | Metals and Materials International |
| Volume | 25 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2019 Jan 18 |
Bibliographical note
Publisher Copyright:© 2018, The Korean Institute of Metals and Materials.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry