Modal Orientations and Intensities of Pole Figures

[Camilo Garzón]

Hi,

I have doubt, again it's more theoretical than about the software, a have different set of data of EBDS of Titanium for different samples, which led me to plot the ebsd maps, calculate the modal orientations and plot the pole figures of each one. (For alpha phase (0001), (11-20) and (10-10), and for beta phase (001), (110), and (111)).

My question is: Should the sample that has the modal orientations with the highest weights also be which have the stronger intensities in the pole figures? or not?

I found that not necessarily, but I'm not pretty sure of why.

I organized my data in the next table to try to explain my point. For each phase, I took the 4 orientations that have more weight in each sample. An also took the maximum value of intensities of the pole figures in the same order that I mentioned before. Shouldn't be which have the highest weight which has the biggest value of intensities? 

Thanks for your gentle help.

Sample	Phase	N° of modal orientations	Weight	Intensity of PF
S0	Alpha	4	37%	4.7 – 4 – 5.3
	Beta	4	82%	2.6 – 2.6 – 2.8
S90-01-1	Alpha	4	25%	9 – 4.4 - 5.8
	Beta	4	35%	17 – 11 – 13
S90-01-7	Alpha	4	41%	9.4 – 11 – 5.5
	Beta	3	100%	3.3 – 2 – 3.3
S90-1-1	Alpha	4	66%	4.3 - 2.9 – 2.1
	Beta	4	63%	5.3 – 4.4 – 4.5
S90-1-02	Alpha	4	42%	6.6 - 3.4 - 2.7
	Beta	4	60%	3.5 – 3.9 – 3.3

[Rüdiger Kilian]

Hi,
I'm trying to understand your question.
So let me ask: You compute modal orientations from an odf and you plot polefigures from that odf. Correct?

Cheers,
Rüdiger
________________________________________
From: mtex...@googlegroups.com <mtex...@googlegroups.com> on behalf of Camilo Garzón <scga...@gmail.com>
Sent: Monday, May 27, 2019 6:38:16 AM
To: MTEX
Subject: {MTEX} Modal Orientations and Intensities of Pole Figures

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[Camilo Garzón]

Hi,

Yes , I did like you said.

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[ruediger Kilian]

Ok, and now you are wondering whether out of the sample set, the sample with the highest unimodal fraction (assuming that this is what you indicate by weights, but maybe you need to explain me what you mean with those weights) should have the largest pole figure intensities (compared to the other samples)?

Cheers,
Rüdiger

[Camilo Garzón]

Ok, Got it, When I talk of weights I'm talking of the weights that are calculated with this function:

[modes,weights] = calcComponents(odf)

Are they the unimodal fraction? or volumetric fraction?

Best Regards,

Camilo