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Routine EBSD Analysis of Phase Distribution & Grain Size

Phase Determination & Grain Size Analysis of Duplex Steel

Duplex steels have very desirable mechanical properties and resistance to corrosion. This makes them strong candidates for applications in corrosive environments, such as marine and chemical engineering, oil and gas exploration, power plants, and in the paper and petrochemical industries.

High performance steels require a balanced ferrite (α) : austenite (γ) ratio and controlled refinement of their microstructure.

QUANTAX ED-XS is an affordable product package that combines the unique eFlash XS EBSD detector with the robust XFlash® EDS detector under the versatile ESPRIT software suite. QUANTAX ED-XS is suitable for use on desktop SEMs - providing the analytical capabilities needed for routine analysis.

This solution enables the high speed and high-quality routine EBSD analysis of Duplex steels with precise determination of phase fractions and grain distribution, whilst providing a deep insight on intragranular deformation features.

QUANTAX ED-XS for Routine EBSD Analysis

With a very attractive price and low cost of ownership, QUANTAX ED-XS enables laboratories to make more efficent use of their resources and maximize throughput.

QUANTAX ED-XS is well suited for:

  • Running routine analyses to relieve the backlog on expensive Field Emission Gun-SEMs (FE-SEM). 
  • Training new EBSD users with lower time and cost constraints than when using conventional EBSD systems.
  • Use by entry-level users to practice system optimization parameters before acquiring EBSD and EDS maps.
  • Quality control of prepared samples before running EBSD analysis on an expensive, and often very busy FE-SEM, helping ensure that valuable time on the FE-SEM is used effectively.

Fig. 1: Phase distribution in duplex steel sample. Austenite in green (52.1%), Ferrite in blue (47.5%). Pixel size: 500 nm, 500 fps speed, Zero solutions: 0.43 %. No data cleaning applied.

 

Fig. 2: Inverse Pole Figure IPF Z showing crystallographic orientation distribution for both phases.
Figure 3: Grain size distribution histogram corresponding to the analyzed area.
Figure 4: Grains in random colors showing spatial distribution of both phases (left) and subset of grains smaller than 35 microns representing 47% of the area/volume fraction of the sample (right).