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Biblioteca Digital | FCEN-UBA | Piotrkowski, Rosa. 1990 "Carburos ...

Biblioteca Digital | FCEN-UBA | Piotrkowski, Rosa. 1990 "Carburos ...

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Figura 1.27: Zr-2.5% Nb. a) Tratamiento: lh a 1050°C, luego 25 dias a 772°C. Micmqafias bptica<br />

con lilz normal. Fase clara: a, fase oscura: B prcvia. M=6OX. b) Tratamiento: Ih a 1050°C, luego<br />

68 &as a 780-836°C. hi~:rografia SEM. Fase oscura: a; fase clara: j? previa. M=200X.

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