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The 150mm 610MPa grade ultra-heavy plates was successfully exploited with 320mm casting slab,and the microstructure and mechanical properties was studied under different tempered temperature.The plasticity and toughness are improved obviously in the 1/4 and 1/2 of 150mm ultra-heavy plates by controlling the amount and distributing pattern of ferrite,and the produced plates are successfully used in the construction of hydropower station of Murum in Malaysia.
The 150mm 610MPa grade ultra-heavy plates was successfully exploited with 320mm casting slab, and the microstructure and mechanical properties were studied under different tempered temperatures. The plasticity and toughness are improved obviously in the 1/4 and 1/2 of 150mm ultra-heavy plates by controlling the amount and distributing pattern of ferrite, and the produced plates are successfully used in the construction of hydropower station of Murum in Malaysia.