Hot-stamped, boron steel was successfully joined via friction stir spot welding using polycrystalline cubic boron nitride tooling. The resulting microstructure, microhardness and mechanical properties are reported, including a brief look into failure mechanisms. Relationships between the unique mechanical mixing, phase transformations and failure initiation sites associated with joining martensitic steels are characterized.
Revised: November 6, 2007 |
Published: November 1, 2007
Citation
Hovanski Y., M.L. Santella, and G.J. Grant. 2007.Friction stir spot welding of hot-stamped boron steel.Scripta Materialia 57, no. 9:873-876.PNNL-SA-55783.