Help with Grain Boundaries Misorientation

[Camilo Garzón]

Hi,

I'm currently analyzing the misorientation in the grain boundaries of a Ti alpha-beta alloy, however, I had problems with the function grains.boundary.

My objectives are plotting a diagram with the misorientation angle boundaries and also and a histogram of misorientation between alpha-alpha, alpha-beta and beta-beta grain boundaries to classify them in LAGB o HAGB.

Could anyone help me? (I'm using mtex-5.2.beta2)

That's the script that I'm using

set_angle = 10;

min_points=10;

[grains_csm,ebsd_csm.grainId,ebsd_csm.mis2mean] = calcGrains(ebsd_csm('indexed'),'angle',set_angle*degree);

grains_csm = grains_csm(grains_csm.grainSize > min_points);

[grains_csm,ebsd_csm.grainId,ebsd_csm.mis2mean] = calcGrains(ebsd_csm('indexed'),'angle',set_angle*degree);

%Filter 

F = infimalConvolutionFilter;

F.lambda = 0.01;

F.mu = 0.005;

ebsd_csm = smooth(ebsd_csm,F)

plot(grains_csm('Titanium (Alpha)'),grains_csm('Titanium (Alpha)').meanOrientation,'micronbar','off','figSize','large')

hold on

plot(grains_csm.boundary)

hold off

Until this point, everything looks fine.

lw = 6;

% consider on Alpha-Alpha boundaries

gBa = grains_csm.boundary('Titanium (Alpha)','Titanium (Alpha)')

Error using ischar

Not enough input arguments.

Error in grainBoundary/subsref (line 31)

    if ~ischar(gB.CSList{phId})

Error in grain2d/subsref (line 42)

  [varargout{1:nargout}] = builtin('subsref',grains,s);

Then, I get this error

How could I solve it?

Thanks for the help

[Rüdiger Kilian]

Hi,
are you sure grains_csm.boundary is not empty?
Cheers,
Rüdiger
________________________________________
From: mtex...@googlegroups.com <mtex...@googlegroups.com> on behalf of Camilo Garzón <scga...@gmail.com>
Sent: Friday, April 12, 2019 9:36:35 AM
To: MTEX
Subject: {MTEX} Help with Grain Boundaries Misorientation

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[Camilo Garzón]

Hi,

I recheck and it is not empty, however, I attached you my data in this link

https://drive.google.com/open?id=1izWuE43558aMdjHwASLATX1np0gig0Fc

>> grains_csm

 

grains_csm = grain2d (show methods, plot)

 

 Phase  Grains  Pixels           Mineral  Symmetry  Crystal reference frame

     1     166   45352  Titanium (Alpha)       622        X||a, Y||b*, Z||c

     2     129    2255   Titanium (Beta)       432                         

 

 boundary segments: 8121

 triple points: 461

 

 Properties: GOS, meanRotation

Thanks

http://mtex-toolbox.github.io/files/doc/BoundaryMisorientations.html

And when I

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[Ralf Hielscher]

Hi Camilo,

I can confirm that this is a Bug in MTEX. The problems are the parenthesis around Alpha and Beta. 

Its a bit strange but

gBa = grains_csm.boundary('Titanium \(Alpha\)','Titanium \(Alpha\)')

should work.

Ralf.

********************************************************************
Ralf Hielscher                   Tel: +371-531-38556
Fakultät für Mathematik               +371-531-22200 (Sekr.)
Technische Universität Chemnitz  Fax: +371-531-22109
Reichenhainer Str. 39            E-mail: ralf.hi...@mathematik.tu-chemnitz.de
D-09126 Chemnitz                 http://www.tu-chemnitz.de/~rahi
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[Camilo Garzón]

Thanks, Ralf, 

It works 

Best Regards

Camilo

El viernes, 12 de abril de 2019, 13:44:07 (UTC-5), Ralf Hielscher escribió:

Hi Camilo,

I can confirm that this is a Bug in MTEX. The problems are the parenthesis around Alpha and Beta. 

Its a bit strange but

gBa = grains_csm.boundary('Titanium \(Alpha\)','Titanium \(Alpha\)')

should work.

Ralf.

********************************************************************
Ralf Hielscher                   Tel: +371-531-38556
Fakultät für Mathematik               +371-531-22200 (Sekr.)
Technische Universität Chemnitz  Fax: +371-531-22109

Reichenhainer Str. 39            E-mail: ralf.h...@mathematik.tu-chemnitz.de

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