Blair London - Storming Media

Peak Stir Zone Temperature During Friction Stir Processing

Mar 2010

12 pages

Authors: Srinivasan Swaminathan; Keiichiro Oh-ishi; Alexander P Zhilyaev; Christian B Fuller; Blair London; Murray W Mahoney; Terry R McNelley; GENERAL ELECTRIC GLOBAL RESEARCH BANGALORE (INDIA)

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The stir zone (SZ) temperature cycle was measured during the friction stir processing (FSP) of NiAl bronze plates. The FSP was conducted using a tool design with a smooth concave shoulder and a 12.7-mm step-spiral pin. Temperature sensing was accomplished using sheathed thermocouples embedded in the tool path within the plates, while simultaneous optical pyrometry measurements of surface temperatures were also obtained. Peak SZ temperatures were 990 deg C to ...

Investment Cast Gamma Titanium Aluminide Alloys: Processing, Properties, and Promise.

1993

Authors: Blair London; D. E. Larsen Jr.; D. A. Wheeler; P. R. Aimone; HOWMET CORP WHITEHALL MI

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Investment casting of TiAl alloys and the resulting microstructures and mechanical properties are described. Directionally solidified structures, their microstructures and mechanical properties are presented.