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ASTM E157-88(1994)
Practice for Assigning Crystallographic Phase Designations in Metallic Systems (Withdrawn 1999)
Automaticky preložený názov:
Prax pre priradenie crystallographic fázy označenie v kovových sústavách ( Withdrawn 1999 )
NORMA vydaná dňa 1.1.1994
Informácie o norme:
Označenie normy: ASTM E157-88(1994)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.1994
Kód tovaru: NS-42223
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM E157-88(1994) :
Keywords:
Alloy phases, Chemical analysis-metals/alloys, Composition analysis-metals/alloys, Crystal lattice structure, Crystallographic directions, Cubic system, Data analysis-metals/alloys, Hexagonal system, Metals and metallic materials, Metals and metallic materials-crystal orientation, Monoclinic system, Orientation, Phase designations, Structural analysis, Ternary phase, Tetragonal system, Triclinic system, assigning crystallographic phase designations in metallic systems,, test
Doplňujúce informácie
| 1. Scope |
|
1.1 This practice covers the assignment of designations for all alloy phases, based on the composition and crystal structure of each. 1.2 The practice makes possible the selection of a unique designation for each phase, except that in some cases an arbitrary lower case letter is used as described in 3.4 and 3.5. 1.3 The same designation shall be used for a given phase regardless of the system in which it appears (single component, binary, ternary, or polynary). 1.4 A procedure for selecting a temporary designation is also provided to cover those cases in which not enough information is available to assign the permanent designation. |
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