MACRO-ETCHING EXAMINATION & PHOTOGRAPHY
MICROSCOPIC EXAMINATION (MICROSTRUCTURE EXAMINATION, INCLUSION CONTENT)
The primary objective of metallographic examinations is to reveal the constituents and structure of metals and their alloys by means of a light optical or scanning electron microscope. Examination of metallographically prepared specimens are conducted using an advanced high magnification (up till 2000X) optical light microscope.
ASTM GRAIN SIZE DETERMINATION (USING COMPARISON CHARTS FOR UNTWINED GRAINS, TWINNED GRAINS & AUSTENITIC GRAINS IN STEEL: MCQUAID-EHN)
SCANNING ELECTRON MICROSCOPY (SEM) / ENERGY DISPERSIVE X-RAY (EDX) ANALYSIS
A microscopy technique mainly focused on the usage of the Energy Dispersive X-Ray (EDX) detector coupled to the Scanning Electron Microscope (SEM) to examine surfaces of post-corrosion test coupons. it is used to identify and determine the elemental composition and nature of the corrosion deposits.
FERRITE CONTENT BY POINT COUNT METHOD (LAB-BASED)
This is a systematic manual point counting procedure for statistically estimating the volume fraction of an identifiable constituent or phase (e.g. ferrite in duplex stainless steel) from sections through the microstructure by means of a point grid.
ENERGY DISPERSIVE X-RAY (EDX) SPECTROSCOPY
Energy-dispersive X-ray spectroscopy (EDS, EDX, EDXS or XEDS), sometimes called energy dispersive X-ray analysis (EDXA) is an analytical technique used for the elemental analysis or chemical characterization of a sample.
Standard elemental composition of surface deposits and contaminants can be determined by this spectroscopy method.