Work Hardening of Copper

An introduction to work hardening, by Dr Jessica Gwynne, Materials Science and Metallurgy, University of Cambridge. Reproduced here with the permission of Dr Gwynne, Professor Bill Clyne and Steve Penny.
www.doitpoms.ac...

[@EM8844]

that was so funny for this guy to appear just for the bending in such a professional video

[@videosonecet5914]

Thats not funny ,he's one of volunteer to educate us,Ty for this video ,i learn something new today :)

[@Keerthivasan910]

Very Interesting to watch the experiment alongside with a good reasoning. Thanks for posting

[@georgepantziaros2344]

am watching a video in a video.. vidception

[@anilyildiz7370]

Very explanatory! Thank you!

[@pierstaylor4828]

I wish my university course had been as good as this

[@sukitnualchanchai8823]

thanks for simple and easy test to explain this technique.

[@Anas-nu7io]

This is hard work...

[@farhantanvir6037]

Thank You

[@bhadeshia123]

You are welcome. You can find many more free resources on
www.phase-trans.msm.cam.ac.uk/teaching.html

[@tompruyn3492]

Thank you for the help!

[@bhadeshia123]

Happy to help!

[@swx1216]

Another way to experience it in real life is when a sheet of soft aluminum gets wadded and crunched in between the turrets in a press. Its very hard to try to bend it back you usually need a bar and a sledgehammer to beat it out.

[@MrHitmannn00]

thank u ... great job!!

[@blacknoir2404]

All this shows is that work hardening just means people forgetting where to hold metal when trying to bend it.

[@bhadeshia123]

The intention, of course, is to show work hardening!

[@rozyroan385]

i came here for the hands-on tutorial on how to work harden a wire. Haha. this is like too difficult.

[@S63TU]

same

[@employedengineer5710]

Ma'am, I have a question, What is the difference between ideal plastic material and perfectly plastic material? Please provide answer with stress strain diagram .

[@swx1216]

Sometimes you actually want work hardening.

[@TheVanillaChapstick]

Of course the man couldn't bend it back. He grabbed it from the inside and not the ends.

[@bhadeshia123]

wrong. It genuinely work hardens, try it yourself.

[@TheVanillaChapstick]

@@bhadeshia123 I know it hardens, I'm not debating that. It just looks like he intentionally grabbed it from the inside so that he wouldn't bend it back as much.

[@mareksumguy1887]

Are u serious!?... look at the placement of the guys hands on the bar. No leverage whatsoever!

[@ReasonAboveEverything]

My dude gripped it near the top of the arch. No shit it didn't bend.

[@dethmaul]

It's not a contest! They're just showing that it's hardER to bend.

[@bhadeshia123]

Indeed

[@bhadeshia123]

Or unbend

[@ejsain9995]

awkward

[@bhadeshia123]

Not