Premium
Five‐parameter grain boundary analysis of a grain boundary–engineered austenitic stainless steel
Author(s) -
JONES R.,
RANDLE V.,
ENGELBERG D.,
MARROW T.J.
Publication year - 2009
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.2009.03129.x
Subject(s) - grain boundary , materials science , electron backscatter diffraction , austenitic stainless steel , austenite , annealing (glass) , grain boundary strengthening , boundary (topology) , metallurgy , mathematics , mathematical analysis , microstructure , corrosion
Summary Two different grain boundary engineering processing routes for type 304 austenitic stainless steel have been compared. The processing routes involve the application of a small level of strain (5%) through either cold rolling or uni‐axial tensile straining followed by high‐temperature annealing. Electron backscatter diffraction and orientation mapping have been used to measure the proportions of Σ3 n boundary types (in coincidence site lattice notation) and degree of random boundary break‐up, in order to gain a measure of the success of the two types of grain boundary engineering treatments. The distribution of grain boundary plane crystallography has also been measured and analyzed in detail using the five‐parameter stereological method. There were significant differences between the grain boundary population profiles depending on the type of deformation applied.