Local property characterization of friction stir welded titanium 5111
by Nimer, Salahudin M., M.S., UNIVERSITY OF MARYLAND, BALTIMORE COUNTY, 2011, 171 pages; 1505304

Abstract:

Friction stir welding (FSW) provides many advantages over traditional joining techniques, most significantly, lower cost of fabrication. Titanium alloys provide a high specific strength and increased corrosion resistance, which makes them an attractive material for use in harsh sea environments such as those experienced by Naval marine vessels. This research is focused on understanding the mechanical properties of a FSW of a 12.7 mm thick plate of Ti-5111 in the two plate loading directions. The weld showed significant strength and ductility increases in the stir zone in both directions. The retreating side of the weld showed reduced strength and ductility below the base property. This result, however, was found to be limited to the micro-scale. The longitudinal direction showed slightly higher strengths, and lower ductility than the transverse direction. The understanding from this research will lead to future process optimizations of FSW.
 
AdviserMarc P. Zupan
SchoolUNIVERSITY OF MARYLAND, BALTIMORE COUNTY
SourceMAI/ 50-04, p. , Feb 2012
Source TypeThesis
SubjectsMechanical engineering; Materials Science
Publication Number1505304
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