|
|
|
|
|
|
|
|
|
Back reflection (ut)
Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
Signal from the far boundary of the test part.
|
|
|
Degreasing fluid, английский
- Solvents or cleaners employed to remove oil and grease from the surface of components before the penetrant liquid is applied.
- Chemical cleaning agents used to remove contaminants from test surfaces before inspection. see also cleaning, chemical.
Flakes, английский
- Short discontinuous internal fissures in ferrous metals attributed to stresses produced by localized transformation and decreased solubility of hydrogen during cooling after hot working. in a fractured surface, flakes appear as bright silvery areas; on an etched surface they appear as short, discontinuous cracks. also called “shatter cracks and snowflakes.”
- Short discontinuous internal fissures in ferrous metals attributed to stresses produced by localized transformation and/or decreased solubility of hydrogen during cooling usually after hot working. on a fractured surface, flakes appear as bright silvery areas; on an etched surface, flakes appear as short, discontinuous cracks.2,5
- Short discontinuous internal fissures in ferrous metals attributed to stresses produced by localized transformation and/or decreased solubility of hydrogen during cooling usually after hot working. flakes appear as bright silvery areas (fish eyes) on an otherwise ductile fracture surface; flakes appear as short, discontinuous cracks on a polished and etch cross section. see also hydrogen embrittlement.
|
|
|
|
|
|
|