A mass of 5.72 kg austenite at a composition of 0.90 wt% carbon is cooled at equilibrium to just below 727°C. Which of the following statements are CORRECT? Select all that apply. The final microstructure contains both primary (pro-eutectoid) cementite and eutectoid cementite O The primary (or pro-eutectoid) phase forms at the grain boundaries of the original austenite grains O The final microstructure contains a total of 4.21 kg eutectoid ferrite The final microstructure contains 0.75 kg pearlite O The final microstructure contains 5.59 kg austenite

A mass of 5.72 kg austenite at a composition of 0.90 wt% carbon is cooled at equilibrium to just below 727°C. Which of the following statements are CORRECT? Select all that apply. The final microstructure contains both primary (pro-eutectoid) cementite and eutectoid cementite O The primary (or pro-eutectoid) phase forms at the grain boundaries of the original austenite grains O The final microstructure contains a total of 4.21 kg eutectoid ferrite The final microstructure contains 0.75 kg pearlite O The final microstructure contains 5.59 kg austenite

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

A mass of 5.72 kg austenite at a composition of 0.90 wt% carbon is cooled at equilibrium to just
below 727°C. Which of the following statements are CORRECT? Select all that apply.
O The final microstructure contains both primary (pro-eutectoid) cementite and eutectoid cementite
O The primary (or pro-eutectoid) phase forms at the grain boundaries of the original austenite grains
The final microstructure contains a total of 4.21 kg eutectoid ferrite
O The final microstructure contains 0.75 kg pearlite
O The final microstructure contains 5.59 kg austenite

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