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45
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Close up a steel specimen undergoing quenching during the jominy end quench test. As the water jet sprays onto the end of the hot, glowing specimen, a cold dark region spreads up the specimen. The cold region has transformed from austenite to a mixture of martensite, ferrite and pearlite. From TLP: The Jominy End Quench Test |
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46
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Full jominy end quench test: both the transfer of the sample from furnace to Jominy machine, and the jet spraying one end of the sample (contributed by Oxford Brookes University), from TLP: The Jominy End Quench Test |
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47
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Full tensile test of annealed copper at 20 times actual speed, showing plastic deformation, necking and failure. From TLP: Introduction to mechanical testing |
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48
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Necking of annealed copper during a tensile test, at five times actual speed. From TLP: Introduction to mechanical testing |
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49
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Full tensile test of work hardened copper at twenty times actual speed. From TLP: Introduction to mechanical testing |
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50
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Necking of work hardened copper during a tensile test at 5 times actual speed. From TLP: Introduction to mechanical testing |
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51
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Tensile test of polyethylene, with a strain rate of 10mm/min, displaying necking, drawing and fracture. Video is at 48 times actual speed- actual fracture time is ~ 30 minutes. From TLP Crystallinity in polymers |
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52
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Polyethylene during tensile test - close up of fracture only at 48 times actual speed. From TLP Crystallinity in polymers |
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58
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The vial containing a mixture of cyclohexane and aniline cooling from 35°, has been filmed perpendicular to the direction of the laser light (left to right). When the critical temperature is reached and the mixture goes from a single phase to two phases, the spot of light on the screen is disrupted as the phases separate. The spot ‘flickers' and then becomes totally diffuse. It will eventually form a single spot again once the transition is completed and the two chemicals have completely separated. Ten times actual speed. From TLP: Solid Solutions (speeded up by a factor of 10 times) |
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59
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As video 58, but filmed looking into the laser light after it has passed through the vial (i.e. the video is of the laser beam as projected onto a screen): The vial contains a mixture of cyclohexane and aniline cooling from 35°. When the critical temperature is reached and the mixture goes from a single phase to two phases, the spot of light on the screen is disrupted as the phases separate. The spot ‘flickers' and then becomes totally diffuse. It will eventually form a single spot again once the transition is completed and the two chemicals have completely separated. From TLP: Solid Solutions(speeded up by a factor of about 200) |
