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Heat treatments are performed on steels and other metals to alter their properties - Leaving Cert Engineering - Question 4(a) - 2021
Question 4(a)
Heat treatments are performed on steels and other metals to alter their properties. A surface hardening heat treatment process is shown opposite. (i) Identify and d... show full transcript
Worked Solution & Example Answer:Heat treatments are performed on steels and other metals to alter their properties - Leaving Cert Engineering - Question 4(a) - 2021
Step 1
Outline two benefits of performing the surface hardening heat treatment shown.
Answer
The benefits of surface hardening include:
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Hard outer shell while softer tougher inner core: This combination offers enhanced wear resistance on the surface while retaining toughness in the internal structure of the metal, reducing the likelihood of brittle failure.
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Warping or distortion reduction: The rapid cooling and controlled heating process minimizes the risk of warping or distortion in the metal, allowing for consistent dimensions and enhanced mechanical properties.
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Improved wear resistance: The martensitic layer created through this process provides excellent resistance to abrasion and wear, leading to longer life for components subjected to high friction.
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Cost-effective process: Surface hardening processes are generally quick and efficient, leading to significant savings in both time and material costs.