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SUMMARY:Steam and Gas Turbines – Wear and Erosion Challenges at High Tem
 peratures - Sarah Hainsworth\, Department of Engineering\, University of L
 eicester
DTSTART:20110609T150000Z
DTEND:20110609T160000Z
UID:TALK29904@talks.cam.ac.uk
CONTACT:Stephen Walley
DESCRIPTION:High temperature steam and gas turbines use a range of materia
 ls to confer high strength and high temperature creep and wear resistance.
   For steam turbines\, steel and nickel based alloys are commonly used\, w
 hilst gas turbines utilise titanium alloys and nickel-based super alloys. 
 In gas turbine applications\, steels are only used for bearings and shafts
 \, due to the compromise between strength\, hardness and mass. For both ga
 s and steam turbines\, coatings and surface treatments are applied to: enh
 ance reliability\, give increased oxidation resistance\, and to improve we
 ar and erosion performance. Surface coatings and treatments ideally are co
 nsidered at the design stage\, where the interaction between the coating\,
  the bond coating and substrate can be considered as interdependent. Bond 
 coats are particularly important in providing adhesion to prevent spallati
 on of the coating during thermal cycling. This seminar reviews the role of
  the material and/or coating’s microstructure in conferring high tempera
 ture wear and erosion properties.
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
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