| 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) | time-temperature-transformation diagram (TTT diagram) |
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| Definition (EN) | Set of curves drawn in a semi-Iogarithmic coordinate system with logarithmic time/temperature coordinates which define, for each level of temperature, the beginning and end of the transformation of austenite under isothermal conditions.
In general, a complernentary curve joins the points corresponding to the times at which the proportion of transformed austenite reaches 50 %.
Finally, information is usually given as to the transformation products and their hardness.
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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) | dijagram vrijeme – temperatura - transformacija ( TTT dijagram ) |
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| Definition (BS) | Set krivih koje su nacrtane u polu- logaritamskom koordinatnom sistemu sa logaritamskim koordinatama vrijeme / temperatura , koje definišu za svaki nivo temperature, početak i kraj transformacije austenita pod izotermalnim uvjetima.
Općenito, komplementarna kriva spaja tačke koje odgovaraju vremenima na kojima omjer transformiranog austenita dostiže 50%.
Najzad, obično informaciju daje kako o transformacionim proizvodima tako i njihovim tvrdoćama |
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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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