Normalizing is softening process in which iron base alloys are heated ____ above the upper critical limit for both hypo and hyper eutectoid steels. a. 600 to 750°C b. 900 to 1000°C c. 800 to 900°C d. 40 to50°C

Normalizing is softening process in which iron base alloys are heated ____ above the upper critical limit for both hypo and hyper eutectoid steels. a. 600 to 750°C b. 900 to 1000°C c. 800 to 900°C d. 40 to50°C

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter2: Measurement, Materials, And Safety

Section2.7: Heat Treatment Of Metals

Problem 2RQ: Direct hardening can be performed on steel containing at least________ carbon.

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Concept explainers

Strengthening of Alloys

Strengthening of the alloys is required as metals become weak due to various lattice defects, metal bonding phenomena. The strength of the metals is not enough for any mechanical work. The internal dislocations of any metals arise due to forming processes. Due to the movement of these dislocations, the metals are plastically deformed.

Question

Normalizing is softening process in which iron base alloys are heated ____ above the upper critical limit for both hypo and hyper eutectoid steels.

600 to 750°C

900 to 1000°C

800 to 900°C

40 to50°C

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