Abstract
Confocal scanning laser microscopy (CSLM) was used in real-time observation of alloy element oxidation of a manganese/aluminum transformation induced plasticity (TRIP) steel. CSLM images reveal a marked role of grain boundaries in the overall initial oxidation kinetics of the alloy and consequently in the morphology of the initial surface oxide. Changing the grain size and the oxidation temperature results in a change in the overall kinetics of selective oxidation and in the importance of oxidation at grain boundaries, respectively. Electron backscattered diffraction mapping was used to characterize the grain boundaries intersecting the surface over an area of the alloy. Subsequent CSLM observation of selective oxidation over the same area allowed quantification of oxidation kinetics as a function of individual grain boundary misorientation.
Original language | English (US) |
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Pages (from-to) | 539-546 |
Number of pages | 8 |
Journal | Journal of Phase Equilibria and Diffusion |
Volume | 26 |
Issue number | 5 |
DOIs | |
State | Published - Sep 2005 |
Externally published | Yes |
Keywords
- Boundary Misorientation
- Confocal Scanning Laser Microscope
- Interior Surface
- Oxidation Kinetic
- Trip Steel
ASJC Scopus subject areas
- Condensed Matter Physics
- Metals and Alloys
- Materials Chemistry