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Materials technology drives impeller design

: Sonsino, C.M.

World pumps (1998), November, S.32-36 : Ill., Lit.
ISSN: 0262-1762
Fraunhofer LBF ()
Bauteil; Bemessung; casting; corrosion resistance; design; environment; Fertigung; Gefüge; Gießen; Korrosionsbeständigkeit; manufacturing process; material property; material selection; microstructure; nichtrostender Stahl; powder metallurgy; Pulvermetallurgie; pump; Pumpe; sintering; Sintern; Spannung; stainless steel; stress test; structural component; Umwelt; Versuch; Werkstoffauswahl; Werkstoffeigenschaft; Woehler curve; Wöhlerlinie

For the manufacture of small runs of corrosion and/or abrasion resistant pump impellers, powder metallurgy offers a potentially economic alternative to casting. A collaborative research project in Germany has in investivated the potential of this application, including the ability of powder metal materials to perform in the harsh environments experienced by these parts. C.M. Sonsino of the Fraunhofer-Institut for Betriebsfestigkeit (LBF) in Darmstadt, R. Zieschang of KSB AG in Frankenthal, together with V. Arnhold and D. Gonia of GKN Sinter Metals in Radevormwald and K.-H. Sandritter of Hoganas GmbH report on their findings.