Practice Exam No2 - Practice Exam No 2 1 Creep behavior of...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Practice Exam No. 2 1. Creep behavior of a material is given below where “X” denotes a failure. (a) If curves A, B and C were obtained at different temperature at constant stress, list, from high to low, the temperature at which these creep curves were obtained. (b) Similarly, if curves A, B and C were obtained at different stress levels at constant temperature, list, from high to low, the stress at which these creep curves were obtained. Creep Strain Time X X X A B C Creep Strain Time X X X A B C 2. Consider 1.0 kg of austenite containing 1.5 wt.% Carbon, cooled to below 727 ° C. Note that AW Fe =55.85 g/mole and AW C =12 g/mole. (a) What is the proeutectoid phase (phase formed before eutectoid reaction)? (b) How many kg’s each of total ferrite and cementite form? (c) How many kg’s each of pearlite and the proeutectoid phase form? (d) Schematically sketch and label the resulting microstructure. 3. A cylindrical specimen of stainless steel having a diameter of 12.8 mm and a gauge length of 50.8 A cylindrical specimen of stainless steel having a diameter of 12....
View Full Document

{[ snackBarMessage ]}

Page1 / 2

Practice Exam No2 - Practice Exam No 2 1 Creep behavior of...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online