| Standardization field | Metallic materials |
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| Technical committee | BAS/TC 4- Steel, steel products, non-ferrous metals and alloys |
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| Term (EN) | temper embrittlement |
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| Definition (EN) | Embrittlement which affects certain quenched and tempered steels after SOAKING at certain temperatures or during slow COOLING through these temperatures.
A distinction is made between:
-IRREVERSIBLE TEMPER EMBRITTLEMENT (BLUE BRITTLENESS): for temperatures of the order of 300oC;
-REVERSIBLE TEMPER EMBRITTLEMENT: for temperatures between approximately 450 oC and 550 oC inclusive.
This embrittlernent reveals itself by a displacement of the transition curve for the impact strength of the metal towards higher temperatures. It disappears after reheating at a temperature above 550 oC followed by rapid COOLING.
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| Term (FR) | |
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| Definition (FR) | |
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| Term (DE) | |
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| Definition (DE) | |
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| Term (BS) | krtost pri popuštanju |
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| Definition (BS) | Krtost kojoj su skloni određeni kaljeni i popušteni čelici nakon DRŽANJA na određenim temperaturama, ili za vrijeme laganog HLAÐENJA preko ovih temperatura.
Razlikuju se:
- NEPOVRATNA KRTOST POPUŠTANJA (PLAVA KRTOST): za temperature od 300 oC.
-POVRATNA KRTOST POPUŠTANJA: za temperature između približno 450 oC i uključujući i 550 oC.
Ova krtost se otkriva sa premještanjem prelazne krive za udarnu čvrstoću metala prema višim temperaturama. Ona nestaje nakon ponovnog zagrijavanja na temperaturu iznad 550 oC, nakon čega slijedi brzo HLAÐENJE |
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| Term (HR) | |
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| Definition (HR) | |
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| Term (SR) | |
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| Definition (SR) | |
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| Date | 2016-04-04 |
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| Standards | BAS EN 10052:2005 |
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