Paper Titles
Metallurgical and Mechanical Properties of Friction Stir Welded Ultra Fine Grained Steel
p.3727
Local Manufacture of MMC Using FSW
p.3733
Microstructural Evolution of Cast Mg-Al-Ca Alloy during Friction Stir Processing
p.3739
Microstructure Evolution and Microstructure-Property Relationships in Friction Stir Processing of NiAl Bronze
p.3745
Tensile and Fatigue Properties of Friction Stir Processed NiAl Bronze
p.3751
Microstructure of Friction-Stir-Welded High-Nitrogen Stainless Steel
p.3757
Friction Stir Welding of Precipitation Hardened Ni Based Alloys
p.3763
Control of Grain Size and Texture in Al Alloys Utilizing Friction Stir Processing
p.3769
Enhancement of Formability in Magnesium Alloy AZ31B via Friction Stir Processing
p.3775

Tensile and Fatigue Properties of Friction Stir Processed NiAl Bronze

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Abstract:

Friction stir processing (FSP) produced local microstructural refinement in cast Ni Al Bronze. The refined microstructure quality was evaluated with mechanical property characterization using monotonic tension and fatigue testing as a function of FSP raster patterns. Modifying the cast NiAl bronze with FSP resulted in a 140 - 172 % increase in yield strength, and a 40 - 57% increase in tensile strength. Changing the raster pattern from a linear to a rectangular spiral raster increased the tensile elongations by 40 - 134%. This increase in elongation was attributed to increased microstructural uniformity through the depth of the FSP raster. The ability to transfer FSP technology was demonstrated with consistent tensile property data produced by three different laboratories. Fatigue characterization (both uniaxial and rotating-bending fatigue) showed that FSP improved the cast NiAl bronze fatigue resistance. Both types of fatigue testing showed differences in fatigue resistance as a function of processing parameters.

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Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

3751-3756

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.3751

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Online since:

March 2007

Authors:

Christian B. Fuller, Murray W. Mahoney, William H. Bingel, Michael Calabrese, B. London

Keywords:

Fatigue, Friction Stir Processing (FSP), Monotonic Tension, Ni Al Bronze

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

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