Q2) A steel gear is needed to be improved by increasing the carbon content within an outer surface layer as a result of carbon diffusion into the steel surface. An external carbon-rich gaseous atmosphere at an elevated and constant temperature supplies the carbon. The initial content of carbon of the steel is 0.5 wt%. The surface carbon concentration remains at 1.6 wt%. For this treatment to be effective, a carbon content of 0.9 wt% must be achieved at a position 0.85 mm below the surface. Specify an appropriate heat treatment in terms of temperature and time for temperatures of 1000, 1050, and 1100 °C. At these conditions, the alloy is carbon in y-iron.

Q2) A steel gear is needed to be improved by increasing the carbon content within an outer surface layer as a result of carbon diffusion into the steel surface. An external carbon-rich gaseous atmosphere at an elevated and constant temperature supplies the carbon. The initial content of carbon of the steel is 0.5 wt%. The surface carbon concentration remains at 1.6 wt%. For this treatment to be effective, a carbon content of 0.9 wt% must be achieved at a position 0.85 mm below the surface. Specify an appropriate heat treatment in terms of temperature and time for temperatures of 1000, 1050, and 1100 °C. At these conditions, the alloy is carbon in y-iron.

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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