Problem

Usando as curvas TTT, compare as temperabilidades de aços 4340 e 1050 pela determinação do...

Usando as curvas TTT, compare as temperabilidades de aços 4340 e 1050 pela determinação dos tempos requeridos para que a transformação isotérmica de ferrita e perlita (Fs, Ps e Pf) ocorra a 650 ºC. [Ver as Figuras 13-8 e 13-16(a).]

Figura 13-8 Microestruturas complexas obtidas pela interrupção do tratamento isotérmico do aço 1050. Crédito: © Cengage Learning 2014.

Figura 13-16 Curvas (a) TTT e (b) CCT para um aço 4340. Crédito: © Cengage Learning 2014.

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