In-situ neutron diffraction measurements of temperature and stresses during friction stir welding of 6061-T6 aluminum alloy

Journal Article · Mon Jan 01 00:00:00 EST 2007 · Science and Technology of Welding and Joining

OSTI ID:931709

Feng, Zhili ^[1]; Wang, Xun-Li ^[1]; David, Stan A ^[1]; Choo, Hahn ^[1]; Hubbard, Camden R ^[1]; Woo, Wan Chuck ^[1]; Brown, D. W. ^[2]; Clausen, B ^[2]; An, Ke ^[1]

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1. ORNL
2. Los Alamos National Laboratory (LANL)

The evolution of temperature and thermal stresses during friction stir welding of Al6061-T6 was investigated by means of in situ, time resolved neutron diffraction technique. A method was developed to deconvolute the temperature and stress from the lattice spacing changes measured by neutron diffraction. The deep penetration capability of neutrons made it possible for the first time to obtain the temperature and thermal stresses inside a friction stir weld.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Laboratory Directed Research and Development (LDRD) Program
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 931709
• Journal Information: Science and Technology of Welding and Joining, Vol. 12, Issue 4; ISSN 1362-1718
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
FRICTION
NEUTRON DIFFRACTION
NEUTRONS
STRESSES
THERMAL STRESSES
WELDING