Abstract
Specifically, we studied the effects of annealing temperature, time, cooling method and plastic deformation based on the 15Cr-2Ni-2Al-11Mn DSS and established TTT diagrams of as-cast and cold-rolled duplex stainless steels using the Avrami equation, respectively. A simplified model of diffusion-mediated phase transformation was established to explain the stretched exponent 2.5 used in the Avrami equation. And it is found that plastic deformation not only changes the rate of phase transformation and the grain size of new phase but also changes the equilibrium phase constitution.
Original language | English |
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Pages (from-to) | 433-440 |
Number of pages | 8 |
Journal | Materials and Design |
Volume | 114 |
DOIs | |
Publication status | Published - 15 Jan 2017 |
Keywords
- Duplex stainless steel
- Microstructure
- Phase transformation
- Plastic deformation
- TTT diagram
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering