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There are many types of heat treating processes available to steel. The most common are ____________ quenching, and tempering.(a) dealing(b) healing(c) annealing(d) milling |
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Answer» The correct option is (c) annealing Explanation: Annealing is the process of heating the steel to a sufficiently high temperature to relieve local internal stresses. It does not create a general softening of the product but only locally relieves strains and stresses locked up within the material. Annealing goes through three phases: recovery, recrystallization, and grain growth. The temperature required to anneal a particular steel depends on the type of annealing to be achieved and the alloying constituents. |
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