Friction Stir Welding (FSW) is a solid-state process that can be used for transportation and defense applications. Understanding the microstructure evolution and properties of friction stir welded components is necessary to use FSW in critical structural applications. Tensile properties and fatigue crack growth behavior of friction stir welded wrought Al6061-T6 were investigated in the direction parallel to the FSW direction. A fatigue crack growth test was performed on a compact tension specimen in ambient conditions for constant Delta K. The effects of FSW parameters were also studied. Microstructural changes, microhardness, and residual stresses were characterized and correlated with the tensile properties and fatigue crack growth behavior of the Al6061-T6 material.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Richards, Bradley Thomas

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-051310-235516

Advisor

• Lados, Diana A.

Year

• 2010

Date created

• 2010-05-13

Resource type

• Major Qualifying Project

Major

• Aerospace Engineering

Rights statement

• In Copyright

Last modified

• 2020-12-03