“School of Nano-Sciences”

Back to Papers Home
Back to Papers of School of Nano-Sciences

Paper   IPM / Nano-Sciences / 14813
School of Nano Science
  Title:   Microstructural surface characterization of stainless and plain carbon steel using digital holographic microscopy
1.  Yousef Pourvais
2.  Pegah Asgari
3.  Pedram Abdollahi
4.  Rahim Khademi
5.  Ali Reza Moradi
  Status:   Published
  Journal: J. Optical Soci. America B
  No.:  5
  Vol.:  34
  Year:  2017
  Pages:   B36
  Publisher(s):   Optical Society of America
  Supported by:  IPM
Scanning probe microscopy techniques are widely applied as three-dimensional (3D) metallography methods in studying metallic microstructures. While providing high lateral and vertical resolutions, these techniques suffer from a limited field-of-view, which is a crucial requirement in many metallurgy studies. Moreover, they are complex and expensive, and need a complicated specimen preparation procedure. In this paper, we utilized reflective digital holographic microscopy for 3D microstructural characterization of metallic surfaces within an adjustable field-of-view and a resolution close to diffraction-limit. Polished and etched CK45 plain carbon steel and AISI 304 stainless steel samples have been studied with the presented method. The experimental results show the capability of the method for metallurgic granular and intergranular studies. The method has the potential to be used in a variety of metallurgic phenomena such as crystal plasticity, microstructural oxidation, and intergranular corrosion.

Download TeX format
back to top
scroll left or right