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18 Nov 2019
5. Using the TTT diagram for a eutectoid steel, determine the structure that results from the following treatments. In each case, assume that you start with a homogeneous austenitic structure. CLEARLY indicate the structure after each step in the treatment. i) Rapidly cool to 700°C hold for 2 s Rapidly cool to 525°C Hold for3 s Rapidly cool to 300°C Hold for 10 s quench to room temperature ii) Rapidly cool to 650°C hold for 1s Rapidly cool to 600°C hold for 4 s Rapidly cool to 350°C Hold for 200 s quench to room temperature
5. Using the TTT diagram for a eutectoid steel, determine the structure that results from the following treatments. In each case, assume that you start with a homogeneous austenitic structure. CLEARLY indicate the structure after each step in the treatment. i) Rapidly cool to 700°C hold for 2 s Rapidly cool to 525°C Hold for3 s Rapidly cool to 300°C Hold for 10 s quench to room temperature ii) Rapidly cool to 650°C hold for 1s Rapidly cool to 600°C hold for 4 s Rapidly cool to 350°C Hold for 200 s quench to room temperature
15 Apr 2022
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Reid WolffLv2
22 Apr 2019
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