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Review Questions on Annealing and Normalizing of Steel:
Review Questions on Annealing and Normalizing of Steel:
1. What is the effect of increasing the cooling rate (from furnace cooling to air cooling) on the fineness of grains formed and on the amounts of the different phases for the AISI 1045 specimens and AISI 4140 specimens?
2. What is the effect of increasing the cooling rate (from furnace cooling to air cooling) on the hardness of the AISI 1045 specimens and the AISI 4140 specimens?
3. Mention some factors that may affect the actual cooling rate of an air-cooled specimen.
4. What effects do the alloying additives have on the microstructure and mechanical properties of air-cooled (normalized) steel specimens?
5. What effects do the alloying additives have on the microstructure and mechanical properties of furnace-cooled (annealed) steel specimens?
