You need to design a metallic glass for use in industry. The glass transition temperature of the metallic glass is 250°C. While in use, the sample will be subjected to a permanent tensile stress for tuse=6 years and at a temperature of Tuse=230°C. You need to do the necessary creep experiment in the lab to predict the performance of this material by applying the same stress at different temperature and different time. The creep test will be carried out for tiab=6 hours. At what temperature, Tiab, can this test be performed in the lab under the same tensile stress? [Hint: Use WLF and VFT equations for two cases: 1) Tref#T =250 °C and 2) Tre=260 °C.]

You need to design a metallic glass for use in industry. The glass transition temperature of the metallic glass is 250°C. While in use, the sample will be subjected to a permanent tensile stress for tuse=6 years and at a temperature of Tuse=230°C. You need to do the necessary creep experiment in the lab to predict the performance of this material by applying the same stress at different temperature and different time. The creep test will be carried out for tiab=6 hours. At what temperature, Tiab, can this test be performed in the lab under the same tensile stress? [Hint: Use WLF and VFT equations for two cases: 1) Tref#T =250 °C and 2) Tre=260 °C.]

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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