A Method to Distinguish Twinning Variants and Second Twins by EBSD Measurements

doi:10.1007/s40195-014-0040-8

Abstract

Abstract:

This paper proposes a direct and simple method to identify the second twins from twinning variants by electron back scattered diffraction (EBSD). To clarify the orientation relationship between the neighboring crystals, the misorientation calculation by MATLAB software based on the EBSD data is also used. This method is generally applicable to predict the variants occurring in the nucleation and growth of the recrystallization or phase transformation process.

Key words: Twinning variants, Second twins, EBSD, Orientation relationship, Misorientation

Xinli Wang, Wenbin Dai, Rui Wang, Xinzhong Tian, Xiang Zhao, Jianming Li. A Method to Distinguish Twinning Variants and Second Twins by EBSD Measurements[J]. Acta Metallurgica Sinica (English Letters), 2014, 27(2): 267-271.

Figures/Tables 4

References 24

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Misorientation angle, ω (°)	d₁	d₂	d₃
179.994	0.4023	0.8201	0.4070
179.614	0.5799	0.5723	0.5798
179.386	0.8147	0.4124	0.4077
179.380	0.4124	0.4026	0.8147
146.943	0.9051	0.3046	0.2967
146.952	0.3046	0.9051	0.2967
146.550	0.9025	0.3006	0.3085
146.541	0.3085	0.3005	0.9025
146.037	0.2974	0.2975	0.9072
145.634	0.3013	0.9047	0.3012
132.559	0.0001	0.4446	0.8957
131.963	0.8978	0.4404	0.0001
131.290	0.0059	0.8943	0.4474
131.284	0.4475	0.0059	0.8943
131.888	0.8922	0.0059	0.4516
131.881	0.4517	0.8922	0.0059
110.183	0.0041	0.7071	0.7071
109.122	0.7024	0.7118	0.0041
109.111	0.0041	0.7117	0.7024
70.893	0.0092	0.7030	0.7112
70.882	0.7030	0.7112	0.0093
69.817	0.7112	0.0001	0.7029
60.389	0.5722	0.5874	0.5723
59.618	0.5723	0.5721	0.5875

Misorientation angle, ω (°)	d₁	d₂	d₃
179.994	0.4023	0.8201	0.4070
179.614	0.5799	0.5723	0.5798
179.386	0.8147	0.4124	0.4077
179.380	0.4124	0.4026	0.8147
146.943	0.9051	0.3046	0.2967
146.952	0.3046	0.9051	0.2967
146.550	0.9025	0.3006	0.3085
146.541	0.3085	0.3005	0.9025
146.037	0.2974	0.2975	0.9072
145.634	0.3013	0.9047	0.3012
132.559	0.0001	0.4446	0.8957
131.963	0.8978	0.4404	0.0001
131.290	0.0059	0.8943	0.4474
131.284	0.4475	0.0059	0.8943
131.888	0.8922	0.0059	0.4516
131.881	0.4517	0.8922	0.0059
110.183	0.0041	0.7071	0.7071
109.122	0.7024	0.7118	0.0041
109.111	0.0041	0.7117	0.7024
70.893	0.0092	0.7030	0.7112
70.882	0.7030	0.7112	0.0093
69.817	0.7112	0.0001	0.7029
60.389	0.5722	0.5874	0.5723
59.618	0.5723	0.5721	0.5875