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FE Materials Science
material processing, properties, and attributes
| Term | Definition |
|---|---|
| toughness | measure of a material's ability to yield and absorb highly localized and rapidly applied stress |
| tough | a material that is ___ withstands occasional high stresses without fracturing |
| Charpy test | measures toughness by applying sufficient impact to cause failure to a notched specimen |
| creep | continuous yielding of a material under constant stress |
| creep test | test where low tensile load of constant magnitude is applied to a specimen and the strain is measured as a function of time; measures creep |
| Brinell Hardness Test | test to measure hardness of specimen; diameter of depression is correlated to hardness |
| hardness | measure of a material's resistance to plastic deformation; capacity of a surface to resist deformation |
| endurance/fatigue limit | stress level threshold at which a material will withstand an almost infinite number of loadings without experiencing failure |
| fatigue failure | failure in which a material is stress-loaded repeatedly even without it ever exceeding the ultimate strength |
| ductility | ability of a material to yield and deform prior to failure |
| brittle | characteristic of a material that can only support small strains before failing catastrophically |
| strong | characteristic of a material with a high ultimate strength |
| weak | characteristic of a material with a low ultimate strength |
| hard | characteristic of a material with a high modulus of elasticity |
| soft | characteristic of a material with a low modulus of elasticity |
| Gold | great reducing agent |
| Potassium | great oxidizing agent |
| hard working | forming process in which material's temperature is above its re-crystallization temperature |
| cold working | forming process in which material's temperature is below its re-crystallization temperature |
| quenching | forming process in which a formed part is submerged in a gas or liquid; prevents the material from forming undesirable characteristics often aiming for hard steel |
| hard working | forming process in which internal defect and imperfections are eliminated; has a greater ductility; withstands large strains with out strain hardening |
| cold working | forming process that promotes hardness and toughness; uniform microstructure |
| annealing | forming step in which the temperature of the formed part is raised slightly about its recrystallization temperature to relieve stresses, increase grain size and recrystallize grains |
Created by:
natasha13168
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