| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Electro-recrystallization Behavior in Cold-rolled Nickel-chromium Alloys under Direct Current Stressing |
| Author(s) |
Meng-Chun Chiu, Min Ku, Chih-An Wu, Chien-Lung Liang |
| On-Site Speaker (Planned) |
Meng-Chun Chiu |
| Abstract Scope |
Direct current-assisted electro-treatment has been proposed as a promising method for inducing recrystallization. In this study, electro-treatment of Ni-20 wt% Cr alloys at an applied current density of up to 1.8 × 10^4 A/cm^2 for 1 h resulted in reductions in micro-hardness and electrical resistivity by 57.1% and 33.1%, respectively. The microstructural evolution was analyzed using electron backscatter diffraction (EBSD) to investigate the mechanisms of the property variations. The electro-recrystallization was observed based on the grain morphology and size evolutions using the inverse pole figure (IPF) maps and the texture evolution using the orientation distribution function (ODF) analysis. Decreases in the intensity of the rolling texture (Brass) and the random texture also provided solid evidence of recrystallization under the applied direct current stressing treatment. The contributions of thermal effects and the athermal effects during the novel electro-treatment in triggering recrystallization were also evaluated through a series of thermal benchmark experiments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Copper / Nickel / Cobalt, Mechanical Properties |