Author/Authors :
Qiu، نويسنده , , J. and Ju، نويسنده , , X. J. Xin، نويسنده , , Y. and Liu، نويسنده , , S. and Wang، نويسنده , , Y.L. and Wu، نويسنده , , H.B. and Tang، نويسنده , , D.، نويسنده ,
Abstract :
Direct and reheated quenching on microstructural mechanical properties of China Low Activation Martensitic (CLAM) steel was investigated. Three direct quenching and tempering (DQ&T) CLAM steels were rolled at the same finish rolling temperature with different quenching rate, and their microstructures and mechanical properties were compared with those of a reheated quenching and tempering (RQ&T) CLAM steel. DQ&T process was proven to strengthen the tensile property but lower the toughness compared to RQ&T process due to the finer austenite grain size formed under RQ&T process. Tensile property first increased with quenching rate and then decreased. The reason for this was discussed.
