Effect of aging and cold rolling on the microstructure and mechanical properties of a new Fe-Mn-Al-Cr-C duplex alloy |
| |
| Authors: | Hadji Mohamed |
| |
| Affiliation: | (1) Institute of Mechanical Engineering, Department of Materials, Science and Engineering, University of Blida, B.P 270, Blida, Algeria |
| |
| Abstract: | The microstructural changes that occur during aging and cold rolling of a new Fe-Mn-Al-Cr-C duplex alloy have been investigated. Two treatments were developed to produce either a good combination of tensile strength and ductility (σ u =800 MPa, σ y =525 MPa, and A=46%) or a high strength (σ u =1340 MPa, σ y =1200 MPa, and A=15%) with a ductile type of fracture after aging at 320 °C. Aging between 550 °C and 700 °C led to a significant decrease in strength and ductility due to the precipitation of the brittle βMn phase. However, aging above 750 °C showed a considerable increase in strength and ductility due to the precipitation of very fine grains of ferrite within the austenite phase. |
| |
| Keywords: | aging cold rolling duplex alloy stainless steel |
| 本文献已被 SpringerLink 等数据库收录！ |
|
