High strength low alloy steel was fabricated by Osprey forming process. The billet have been characterized by optical microscopy, scanning electron microscopy. hardness test. tensile test and impact test. High strength low alloy steel is bainite struc...
High strength low alloy steel was fabricated by Osprey forming process. The billet have been characterized by optical microscopy, scanning electron microscopy. hardness test. tensile test and impact test. High strength low alloy steel is bainite structure. Hardness range of billets was about 300 kgf/㎟ without a part of horizontal and vertical about spray angle. After hot rolling, aged specimen was tensile test in results, meas yield strength 858MPa, tensile strength 985MPa, and elongation ratio was 20.3%. TO absorption energies hot rolling specimen were 17.8J, 32.8J at -90℃, -50℃. energy of respectively but it was very high 92.7J at ambient temperature. after hot rolling, absorbed aged specimen were 102J.