TY - RPRT TI - Process Development and Microstructural Characterization on Friction Plug Welded 2195 and 2219 Alloys AU - Li, Z. X. AU - Cantrell, M. A. AU - Brown, R. J. AU - McCool, A. PY - 2000 UR - https://ntrs.nasa.gov/citations/20000089963 ID - 20000089963 ER -