Premium
Determination of the Orientation of a Parent β Grain from the Orientations of the Inherited α Plates in the Phase Transformation from Body‐Centred Cubic to Hexagonal Close Packed
Author(s) -
Humbert M.,
Wagner F.,
Moustahfid H.,
Esling C.
Publication year - 1995
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889895004067
Subject(s) - orientation (vector space) , hexagonal crystal system , phase (matter) , close packing of equal spheres , materials science , transformation (genetics) , hexagonal phase , crystallography , uniqueness , grain boundary , condensed matter physics , geometry , mathematics , physics , chemistry , mathematical analysis , composite material , microstructure , biochemistry , quantum mechanics , gene
Knowledge of the orientations of several α plates inherited from the body‐centred‐cubic–hexagonal‐close‐packed phase transformation of a β grain allows us to determine the orientation of the latter, provided that a strict orientation relation between the two lattices exists. This contribution discusses the problem of the uniqueness of the solution and leads to the conclusion that the number of different α orientations required for that purpose is three in the less favourable case but is reduced to two in the most favourable case.