Alloy Metallography - Grain Size Analysis

In the part of special alloys, analysis of grain size and gray-scale metallography in metallography

The number of grain size levels will have an impact on the product and processing process.

The finer the grains, the lower the ductility-to-brittleness temperature of the material.

Coarse grains can increase ductility and are more beneficial to cold work processing

Grain refinement increases strength and, for many metals, toughness

Grain size analysis in metallographic experiments is very important

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Grain size inspection software (FOG)Calculate the grain size and determine the grain size number (Grain Size No.) with reference to the ASTM E112 standard.

Save time on manual line drawing and calculation, use area method, intercept point method, and intercept method to automatically analyze and calculate the grain number, average particle size,

Area standard deviation, perimeter and other data can be output in customized reports.

Grayscale metallographic analysis software (FOA)Use the different grayscales of metal images to select materials. Up to nine materials can be selected.

It can analyze the proportions of different materials, display proportion circular charts and export reports.

Manual comparison and digital judgment:

  • Calculate the grain size and determine the grain number (GRAIN SIZE NO.) with reference to the ASTM E112 standard.
  • Automatically mark grain size distribution, maximum grain area and perimeter with color
  • Analyze the standard deviation of grain area to understand the variation of grain distribution
  • Analyze 5 images at a time and present them directly in the report

 

ASTM standard grain number chart

 

Commonly used detection methods include: (1) comparison method (2) area method (3) intercept point method

Detection method illustrate
comparative method Compare to standard rating chart
area method Calculate the number of grains in a known area, and use the number of grains per unit area to determine the grain size grade number G.
interception method
  • straight line intercept method
  • circular intercept method

 

     

 

 

One-click report export, standard report export format (can also be produced according to customer needs)

Alloy Metallography - Grain Size Analysis inquiry