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

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9 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.

Funders	Funder number
Office of Basic Energy
U.S. Department of Energy	DE-AC52-06NA25396

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.}",

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

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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 - http://www.scopus.com/inward/record.url?scp=84865099276&partnerID=8YFLogxK

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

Funding

Keywords

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