ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Friction stir processing (FSP) produced local microstructural refinement in cast NiAl Bronze. The refined microstructure quality was evaluated with mechanical propertycharacterization using monotonic tension and fatigue testing as a function of FSP rasterpatterns. Modifying the cast NiAl bronze with FSP resulted in a 140 - 172 % increase inyield strength, and a 40 - 57% increase in tensile strength. Changing the raster pattern from alinear to a rectangular spiral raster increased the tensile elongations by 40 - 134%. Thisincrease in elongation was attributed to increased microstructural uniformity through thedepth of the FSP raster. The ability to transfer FSP technology was demonstrated withconsistent tensile property data produced by three different laboratories. Fatiguecharacterization (both uniaxial and rotating-bending fatigue) showed that FSP improved thecast NiAl bronze fatigue resistance. Both types of fatigue testing showed differences infatigue resistance as a function of processing parameters
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.3751.pdf
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