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SUMMARY:Novel materials for high temperature structural applications - Aya
 n Bhowmik
DTSTART:20121011T121000Z
DTEND:20121011T130000Z
UID:TALK39227@talks.cam.ac.uk
CONTACT:Sven Friedemann
DESCRIPTION:The working conditions inside an aircraft jet engine are harsh
  and complex\, and present some of the biggest engineering challenges. In 
 a modern jet engine alone temperatures can vary from -50°C to 2000°C on 
 components spinning with more than 10\,000 revolutions per minute. The rea
 r part of the engine is the hotter region and is referred to as the turbin
 e section. The fuel efficiency of the jet engine is directly proportional 
 to the temperature at which the turbine section operates – higher the te
 mperature in the turbine\, higher is the engine efficiency. Over the last 
 50 years\, Ni-based superalloys have been able to withstand these extreme 
 temperatures and through continual development have enabled significant in
 creases in the turbine entry temperature. However\, the scope for further 
 development with these Ni-base superalloys is becoming increasingly limite
 d. Coupled with this\, the drive for an even more energy efficient engine 
 has led to the worldwide search for a successor to the superalloys. In thi
 s presentation\, the characteristics of a new class of Cr-based alloys\, w
 hich have been considered as one of the potential alternative to the super
 alloys in next generation jet engines\, has been discussed and its scope e
 xplored.
LOCATION:Entertaining Room\, Darwin College
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