| Title |
Serial Sectioning and Reconstruction Techniques for Three-Dimensional Microscopy of Metallic Materials |
| Authors |
김수현(Su-hyeon Kim); 임영목(Young Mok Rhyim) |
| DOI |
https://doi.org/10.3365/KJMM.2016.54.9.698 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
metals; casting; microstructure; optical microscopy; 3d imaging |
| Abstract |
Experimental techniques for serial sectioning and reconstruction were investigated in the three-dimensional imaging of microstructures in metallic materials. Mechanical polishing equipped with a light optical microscope and a digital image processor was used for the serial sectioning and reconstruction. Different processing conditions were investigated for three different alloys: Al-Si alloy, Al-SiC composite, and AZ31 magnesium alloy. Proper selection of polishing cloths and polishing abrasives was pre-requisite for obtaining good slice images. The thicknesses of the slices were precisely controlled for each alloy by changing the mechanical polishing and chemical etching conditions. Two-step polishing was a very effective method for serial sectioning of multi-phase alloys with a soft matrix and hard particles such as Al-SiC composites. Image filtering with a delineate and median filter was very useful for successful image segmentation of multi-phase alloys.(Received October 8, 2015; Accepted January 23, 2016) |