Properties and Grain Structure: BBC 1973 Engineering Craft Studies
Yup, 1973...that means not only is the narration done with an English accent, it's also paced for a 1973 world meaning I ran the video at 1.5 speed to bring it up to a modern pacing.
The video shows the etching process for various metals then does it again after cold rolling the aluminum sample, then discussing how the material's properties (ductility, hardness, toughness) change.
The video then repeats things for heat treating after cold working the aluminium (sp?)...then various carbon steels being annealed, quenched, and tempered.
I absolutely love the hand-cranked tensile tester that we see at around 8:10 in the video.
It's a great video for showing the properties and crystal structures of aluminum (sp?) and steel and how the crystal structures coordinate to that.
