ASTM E1382
Full Name
ASTM E1382 – Standard Test Methods for Determining Average Grain Size Using Semiautomatic and Automatic Image Analysis
Scope
ASTM E1382 provides standardized methods for measuring average grain size in metallic and non-metallic materials using either semiautomatic or automatic image analysis techniques. This standard is crucial for assessing material properties and predicting material behavior, as grain size significantly influences mechanical properties, such as strength, ductility, and corrosion resistance.
Key aspects of ASTM E1382 include:
- Image acquisition: obtaining clear micrographs of the material’s microstructure.
- Image analysis: employing image processing algorithms to identify and measure grain boundaries.
- Grain size calculation: determining average grain size based on parameters like intercept length, intercept count, or grain area.
- Data analysis: statistical analysis of grain size distribution.
By following ASTM E1382, laboratories can accurately and efficiently determine grain size, providing valuable information for material characterization and quality control.
Resources
Keywords
average grain size; image analysis; metallic materials; non-metallic materials; microstructure; grain boundary; grain size distribution; intercept length; intercept count; grain area; data analysis; semiautomatic; automatic