Skip to main content Accessibility help
×
Home

Microdiffraction Experiments and Modeling for Analyzing Multiscale Dislocation Ensembles in Materials

Published online by Cambridge University Press:  15 February 2011

G.E. Ice
Affiliation:
Metals & Ceramics Divisions, Oak Ridge National Laboratory, Oak Ridge TN 37831
R.I. Barabash
Affiliation:
Metals & Ceramics Divisions, Oak Ridge National Laboratory, Oak Ridge TN 37831
J. Pang
Affiliation:
Metals & Ceramics Divisions, Oak Ridge National Laboratory, Oak Ridge TN 37831
Get access

Abstract

The intensity distribution of Laue diffraction is analyzed as a function of local misorientation. We show how unpaired dislocations alter the white beam Laue patterns for isolated dislocations, for dislocation walls, and for a combination of both. We consider the effect of different statistically and geometrically necessary dislocation densities on the intensity distribution along and perpendicular to the Laue streak. A 3D x-ray crystal microscope is used to analyze the complicated plastic-elastic field in a grain of a Ni polycrystalline sample during in-situ uniaxial pulling. A change of dislocation activity with depth is demonstrated. The dislocation slip systems and their densities are determined at various depths. The model parameters are used to simulate the whole Laue pattern including details about the contours for specific Laue spots; good agreement is found between simulated and experimental contours.

Type
Research Article
Copyright
Copyright © Materials Research Society 2003

Access options

Get access to the full version of this content by using one of the access options below.

References

1. Fleck, N., Muller, G., Ashby, M., Hutchinson, J., Acta Metall. Mater., 42, 2, 475, (1994).CrossRefGoogle Scholar
2. Begley, M.R., Hutchinson, J.W., J. Mech. Phys. Solids, 46, 2049, (1998).CrossRefGoogle Scholar
3. Gao, H., Huang, Y., Nix, W.D. and Hutchinson, J.W., J. Mech. Phys. Solids, 47, 1239, (1999)CrossRefGoogle Scholar
4. Huang, Y., Gao, H., Nix, W., Hutchinson, J., J. Mech. Phys. Solids, 47, 1239, (2000).Google Scholar
5. Ice, G.E. and Larson, B.C., Adv. Eng. Mater., 2, 10, 643, (2002).3.0.CO;2-U>CrossRefGoogle Scholar
6. Larson, B.C., Yang, Wenge, Ice, G.E., Budai, J.D., Tischler, J.Z., Nature, 415, 887, (2002).CrossRefGoogle Scholar
7. Mughrabi, H., Ungar, T., Kienle, W., Wilkens, M. Phil. Mag. A53:793, (1986).CrossRefGoogle Scholar
8. Hughes, D. and Hansen, N., Acta Mater. 48, 29853004, (2000).CrossRefGoogle Scholar
9. Barabash, R., Ice, G.E., Larson, B.C., Pharr, G.M., Chung, K.-S., Yang, W., Appl. Phys. Lett., 79, 749, (2001).CrossRefGoogle Scholar
10. Barabash, R., Ice, G.E., Walker, F., J.Appl.Physics, 93, 3, 14571464, (2003).CrossRefGoogle Scholar
11. Hecker, H., Thiele, E., Holste, C., Acta Mater. 50, 2357,(2002).CrossRefGoogle Scholar
12. Scripta, Schwink C. Metall 27, 963, (1992).Google Scholar
13 Huang, X. and Hansen, N., Scripta Mater. 37(1),17, (1997)CrossRefGoogle Scholar
14. Winther, G., et al., in “Textures of Materials”, Pts 1 and 2. 2002. p. 287292.Google Scholar
15. Tatschl, A. and Kolednik, O., Mater. Sci. Engineering, A 342, 12, 152, (2003).CrossRefGoogle Scholar

Full text views

Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.

Total number of HTML views: 0
Total number of PDF views: 8 *
View data table for this chart

* Views captured on Cambridge Core between September 2016 - 17th January 2021. This data will be updated every 24 hours.

Hostname: page-component-77fc7d77f9-vchrx Total loading time: 0.385 Render date: 2021-01-17T13:30:56.558Z Query parameters: { "hasAccess": "0", "openAccess": "0", "isLogged": "0", "lang": "en" } Feature Flags last update: Sun Jan 17 2021 12:54:31 GMT+0000 (Coordinated Universal Time) Feature Flags: { "metrics": true, "metricsAbstractViews": false, "peerReview": true, "crossMark": true, "comments": true, "relatedCommentaries": true, "subject": true, "clr": true, "languageSwitch": true, "figures": false, "newCiteModal": false, "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true }

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Microdiffraction Experiments and Modeling for Analyzing Multiscale Dislocation Ensembles in Materials
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Microdiffraction Experiments and Modeling for Analyzing Multiscale Dislocation Ensembles in Materials
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Microdiffraction Experiments and Modeling for Analyzing Multiscale Dislocation Ensembles in Materials
Available formats
×
×

Reply to: Submit a response


Your details


Conflicting interests

Do you have any conflicting interests? *