2. Examination of breaks
Mechanical parts that break, either in service or during manufacture (semi-finished products or blanks) have fracture surfaces that reflect both their metallurgical structure and the conditions of use or manufacture. Fractures are also produced in the laboratory, either after notching or on a pre-existing crack: this is a method of revealing the structure.
The reading of fractures, whether natural or induced, always provides valuable information about the metal, the fracture initiation and the stress conditions
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Bibliography
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Metallography
- Steel products – Methods for determining the content of non-metallic inclusions in steels - NF A 04-105 - 1986
- General-purpose unalloyed steel wire rod for wire drawing – Surface examination - NF EN ISO 16120 - 2017
- Steel products – Determination of conventional quenching depth after surface heating - NF EN 10328 - 2016
- Steels – Micrographic determination of apparent grain...
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