This week, we need to do work to address a component of our application that requires immediate attention. As a result, you may experience ERA to be intermittently available. We apologize for any inconvenience this may cause, and thank you for your patience as we attend to the care and feeding of ERA!
- 31 views
- 6 downloads
Microstructure and Mechanical Characterization of Rapidly Solidified Cr-C Tool Steel - Annealing Effects
-
- Author(s) / Creator(s)
-
The effect of isochronal annealing on D2 tool steel powder, rapidly solidified via both Impulse Atomization and Water Atomization, has been evaluated using high-resolution scanning electron microscopy and Vickers microhardness. The amount of supersaturation of the alloying elements inside the retained austenite phase as a function of eutectic undercooling was calculated. The fraction of austenite transformed to ferrite at different annealing temperatures (from 350°C to 810°C) was also determined, using Rietveld analysis. The results show that although the particles with larger eutectic undercooling have larger supersaturation of alloying elements within the retained austenite phase, they have a smaller fraction of austenite to ferrite transformation at the temperature in which transformation starts. The maximum hardness was achieved at an annealing temperature of 550°C, due to the formation of fine and well-distributed carbides.
-
- Date created
- 2016
-
- Subjects / Keywords
-
- Type of Item
- Article (Published)