1. A Charpy Impact Toughness Test was conducted on a steel specimen. The experimental details and results of the test ar

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1 A Charpy Impact Toughness Test Was Conducted On A Steel Specimen The Experimental Details And Results Of The Test Ar 1 (77.63 KiB) Viewed 46 times

1. A Charpy Impact Toughness Test was conducted on a steel specimen. The experimental details and results of the test are shown below. Using this formation calculate the impact toughness value (in J/m) for the material. The mass of the swinging hammer is 2 kg. [5 marks) Test Details 7 0.30 m match 0.15 m 2 mm 10 mm 10 mm 2. Charpy Impact Test Results for high carbon steel. Temperature (°C) Impact Energy (0) 100 87.1 75 86.9 50 86.6 25 84.4 0 82.9 -25 80.0 -50 73.1 -65 66.0 -75 59.3 47.9 -100 36.1 -125 29.3 -150 27.1 -175 25.0 -200 24.8 -85 a. Plot an excel graph of impact energy (J) versus temperature (°C), placing temperature on the x-axis. Estimate the ductile-to-brittle transition temperature (DBTT) for this steel (+ 5°C is good enough). [5 marks) b. If a standard 1cm2 specimen was used during the test determine the impact toughness of the steel at its DBTT [5 marks]