ebsd map 0%
ebsd map 14%


ebsd mis 0%


ebsd mis 14%


strain

EBSD measurements show increasing degree of misorientation within each grain of polycrystalline alloy (in this case 304SS).  The misorientation from an ‘average’ orientation for each grain is found to follow a log-normal distribution.  The mean of this distribution moves to higher values with increasing strain. This may provide a means of assessing extent of cold work in engineering structures.

 

Contact:  Angus Wilkinson

Quantification of plastic strain of stainless steel and nickel alloy by electron backscatter diffraction, Kamaya M, Wilkinson AJ, Titchmarsh JM, Acta Materialia (2006), vol. 54, 239-248, doi:10.1016/j.actamat.2005.08.046

Measurement of plastic strain of polycrystalline material by electron backscatter diffraction,
Kamaya M, Wilkinson AJ, Titchmarsh JM, Nuclear Engineering & Design (2005), vol. 235 , 713-725, doi:10.1016/j.nucengdes.2004.11.006