Sorbitol (steel)
Sorbitol is a structure of steel . It was named after Henry Clifton Sorby .
Sorbitol is produced by tempering the martensite . The needle-shaped martensite crystallites disintegrate into a very fine mixture of particles of ferrite and cementite . The original martensitic grain boundaries are retained and thus also the needle-shaped structure. However, the individual particles can not be resolved with a light microscope . In contrast to the brightly colored shimmering pearlite and brown (in very good microscopes also brightly colored) troostite, sorbitol appears black in the light microscopic brightfield .
The properties of sorbitol are similar to those of bainite .
Sometimes the finest perlite that forms directly at the corresponding cooling rate is also referred to as sorbitol, this is incorrect. The term sorbitol is associated with a poorly defined aggregate that is fine or undissolved perlite.
Individual evidence
- ↑ Floris Osmond: MICROSCOPIC ANALYSIS OF METALS . CHARLES Griffin & COMPANY, Limited, London 1904.
- ^ Leonard Ernest Samuels: Light Microscopy of Carbon Steels . ASM International, 1999.
- ^ Arnold Horsch: Metallography - Definition of the structural components. Arnold Horsch eK, accessed on January 21, 2017 .
- ^ Report of ISI Committee in Nomenclature in Metallography , J. Iron Steel Institute, 1902, 61 , 90 - International Statistical Institute