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EMS182midtermSolnW10

EMS182midtermSolnW10 - Departmentf Chemical ngineering...

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Department of Chemical Engineering and Materials Science DIVISION OF MATERIALS SCIENCE AND ENGINEERING University of California, Davis Professor Shackelford EMS 182 FAILURE ANALYSIS Winter 2010 Midterm Examination February 18, 2010 CLOSED BOOK, CLOSED NOTES Name fl or"t A,uSupfS Congratulations on your promotion to Serrior_Engi_n99r al Failures R Us (FRU), an engineering services company in Davis, CA. The following questions must be answered by 3:00 pm, prior to your meeting with the corporate Vice-President, I.R. Bigg-Schott. (25 points) 1. Vice President Bigg-Schott has asked you to analyze the failure of a turbineblade made from the intermetallic compound Ni3Al, a promising high-temperature structural material. To begin, you need to chemically analyze the broken blade of Ni3Al using the EDX capability of your SEM. Sketchas quantitatively as you can the x-ray energy spectrum you would expect from bombardingthis Ni3Al sample with a beam of 5 keV electrons. (Note that you have to calculate this spectrum with this relatively low beam energybecause
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  • Winter '10
  • JShackelforf
  • Trigraph, DIVISIONO F M ATERIALS S CIENCE ND E NGINEERING A University f California, xamination CLOSEDB OOK, ngineering ndMaterials cience, al engineering ervices, igg-Schotth asa skedy

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