Abstract
Visualization method of metal grain boundaries was developed with a short pulse laser. This visualization method was required for selecting grain in local heating system with a continuous wave (CW) fiber laser for controlling grain structures. Two kinds of short pulse lasers, nanosecond and femtosecond lasers, were used in the experiments for promoting the visualization. The sample was a stainless steel (Type 304) plate. The topography of the grain boundary regions was changed by the nanosecond laser irradiation. This topography change enabled the visualization of the grain boundaries.
| Original language | English |
|---|---|
| Pages (from-to) | 126-129 |
| Number of pages | 4 |
| Journal | Journal of Laser Micro Nanoengineering |
| Volume | 7 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2012/02 |
Keywords
- Crystal orientation
- Grain boundary
- Microstructure
- Nanosecond laser
- Visualization
ASJC Scopus subject areas
- Instrumentation
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering