Use of a gray level co-occurrence matrix to characterize duplex stainless steel phases microstructure

Journal Title: Frattura ed Integrità Strutturale - Year 2011, Vol 5, Issue 16

Abstract

Duplex stainless steels are widely used in industry. This is due to their higher strength compared to austenitic steels and to their higher toughness than ferritic steels. They also have good weldability and high resistance to stress corrosion cracking. These steels are characterized by two-phase microstructures composed by almost the same level of ferrite and austenite. Duplex steel 2205 samples evaluated are: as received, cold rolled (33%) and heat-treated at 800°C for 10 hours. A metallographic etching with 10% oxalic acid has been carried out to highlight the phases morphology. Some photos have been taken by SEM microscope and submitted to image analysis. The analysis carried out is based on the determination of co-occurrence matrix and on the following interpretation of appropriate indicators. Through these indicators is possible to estimate the features of images objectively. 

Authors and Affiliations

F. Renzetti, Laura Zortea

Keywords

Related Articles

 Relay-race deformation mechanism during uniaxial tension of cylindrical samples of carbon steel: using digital image correlation technique

 The work deals with experimental study of macro localization of plastic yielding occurrences of structural carbon steel, research of singularity of deformation wave processes by complex use of contemporary test equ...

 Creep-fatigue life evaluation of high chromium ferritic steel under non-proportional loading

  T Multiaxial creep-fatigue tests under non-proportional loading conditions with various strain rates were carried out using a hollow cylinder specimen of a high chromium ferritic steel at 823K in air to discuss th...

 The effect of steady torsion on fatigue crack growth under rotating bending loading on aluminium alloy 7075-T6

 Axles and shafts are of prime importance concerning safety in the transportation industry and railway in particular. Design rules for axles and shafts are mainly based on endurance curves for the material used ac...

 A three-parameter model for fatigue crack growth data analysis

 A three-parameters model for the interpolation of fatigue crack propagation data is proposed. It has been validated by a Literature data set obtained by testing 180 M(T) specimens under three different loading leve...

 Degenerated graphite nodules influence on fatigue crack paths in a ferritic ductile cast iron

 Focusing on ferritic-pearlitic DCIs, these alloys are characterized by a microstructure that ranges from a fully ferritic to a completely pearlitic matrix, and they are widely used for many applications (e.g. whee...

Download PDF file
  • EP ID EP85984
  • DOI 10.3221/IGF-ESIS.16.05
  • Views 139
  • Downloads 0

How To Cite

F. Renzetti, Laura Zortea (2011). Use of a gray level co-occurrence matrix to characterize duplex stainless steel phases microstructure. Frattura ed Integrità Strutturale, 5(16), 43-51. https://europub.co.uk/articles/-A-85984