In situ neutron diffraction analysis of grain structure during friction stir processing of an aluminum alloy

W. Woo; Z. Feng; X. L. Wang; K. An; B. Clausen; T. A. Sisneros; J. S. Jeong

doi:10.1016/j.matlet.2012.06.091

In situ neutron diffraction analysis of grain structure during friction stir processing of an aluminum alloy

W. Woo
, Z. Feng
, X. L. Wang
, K. An
, B. Clausen
, T. A. Sisneros
, J. S. Jeong

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Significant neutron peak broadening was observed in situ underneath the tool of friction stir processing (FSP) in 6061-T6 aluminum alloy. Such broadening was correlated to the dislocation density and subgrain size by using peak profile analysis methods. The high dislocation density of about 1.3×10 ¹⁵ m ^-2 underneath the FSP tool sharply decreases to 1.0×10 ¹⁴ m ^-2 outside the tool. The quantitative determination is consistent with the high-resolution x-ray and TEM results.

Original language	English
Pages (from-to)	29-32
Number of pages	4
Journal	Materials Letters
Volume	85
DOIs	https://doi.org/10.1016/j.matlet.2012.06.091
State	Published - Oct 15 2012

Funding

This work has a benefit from the use of the Lujan Neutron Scattering Center at LANL funded by the Department of Energy's Office of Basic Energy under DOE Contract DE-AC52-06NA25396 . Authors thank E.A. Kenik, D.W. Brown, and T. Ungár.

Keywords

Dislocation density
Friction stir processing
Neutron diffraction
Peak profile analysis

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10.1016/j.matlet.2012.06.091

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title = "In situ neutron diffraction analysis of grain structure during friction stir processing of an aluminum alloy",

abstract = "Significant neutron peak broadening was observed in situ underneath the tool of friction stir processing (FSP) in 6061-T6 aluminum alloy. Such broadening was correlated to the dislocation density and subgrain size by using peak profile analysis methods. The high dislocation density of about 1.3×10 15 m -2 underneath the FSP tool sharply decreases to 1.0×10 14 m -2 outside the tool. The quantitative determination is consistent with the high-resolution x-ray and TEM results.",

keywords = "Dislocation density, Friction stir processing, Neutron diffraction, Peak profile analysis",

author = "W. Woo and Z. Feng and Wang, \{X. L.\} and K. An and B. Clausen and Sisneros, \{T. A.\} and Jeong, \{J. S.\}",

year = "2012",

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doi = "10.1016/j.matlet.2012.06.091",

language = "English",

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journal = "Materials Letters",

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T1 - In situ neutron diffraction analysis of grain structure during friction stir processing of an aluminum alloy

AU - Woo, W.

AU - Feng, Z.

AU - Wang, X. L.

AU - An, K.

AU - Clausen, B.

AU - Sisneros, T. A.

AU - Jeong, J. S.

PY - 2012/10/15

Y1 - 2012/10/15

N2 - Significant neutron peak broadening was observed in situ underneath the tool of friction stir processing (FSP) in 6061-T6 aluminum alloy. Such broadening was correlated to the dislocation density and subgrain size by using peak profile analysis methods. The high dislocation density of about 1.3×10 15 m -2 underneath the FSP tool sharply decreases to 1.0×10 14 m -2 outside the tool. The quantitative determination is consistent with the high-resolution x-ray and TEM results.

AB - Significant neutron peak broadening was observed in situ underneath the tool of friction stir processing (FSP) in 6061-T6 aluminum alloy. Such broadening was correlated to the dislocation density and subgrain size by using peak profile analysis methods. The high dislocation density of about 1.3×10 15 m -2 underneath the FSP tool sharply decreases to 1.0×10 14 m -2 outside the tool. The quantitative determination is consistent with the high-resolution x-ray and TEM results.

KW - Dislocation density

KW - Friction stir processing

KW - Neutron diffraction

KW - Peak profile analysis

UR - https://www.scopus.com/pages/publications/84865099276

U2 - 10.1016/j.matlet.2012.06.091

DO - 10.1016/j.matlet.2012.06.091

M3 - Article

AN - SCOPUS:84865099276

SN - 0167-577X

VL - 85

SP - 29

EP - 32

JO - Materials Letters

JF - Materials Letters

ER -

In situ neutron diffraction analysis of grain structure during friction stir processing of an aluminum alloy

Abstract

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Keywords

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