Metallurgy Lectures on Youtube

[Lagrangian]

Here are some Metallurgy lectures presented by Professor H. K. D. H. Bhadeshia at the University of Cambridge:

https://www.youtube.com/user/bhadeshia123/videos?view=1

The YouTube videos also have links to some of the class materials.

I haven't watched them yet, but just posting here in case any of you are interested.

Check out this sample microscope video of steel undergoing martenistic transformation:
https://www.youtube.com/watch?v=OQ5...DvjVQa1PpcFOFwjqw2BNOW4L5b3kOBOvbOtFf5IAkvLE=

Sincerely,
--Lagrangian

P.S. I'm planning to watch these, and read a few tutorials about metallurgy, such as Verhoeven's book on metallurgy for blacksmiths and knifemakers. For now, I've been reading elementary books on strength of materials by J. E. Gordon as a warm-up.

 

[vitatyranni]

This looks pretty interesting, thx.

 

[ConBon]

Perfect Timing, as I am doing a research paper on knife steels.

 

[Lagrangian]

Thom Brogan (of www.hypefreeblades.com) pointed out that several technical books on metallurgy can be downloaded (including Prof. Bhadeshia's book on Bainite):
http://www.msm.cam.ac.uk/phase-trans/books.html

And I found one on Martensite, although it is a book of conference proceedings:
Proceedings of the International Conference on Martensitic Transformaions. ICOMAT 1979
http://www.msm.cam.ac.uk/phase-trans/2009/ICOMAT79/ICOMAT79.html
"Covers all aspects of martensitic transformations. Some highly informative reviews and many original papers."

And since I can't resist, some more microscope videos, and one educational simulation video:

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Microscope video of cast iron being machined:
https://www.youtube.com/watch?v=XZh6WGR16q0

In the video you can seen the metal break apart, mostly along the veins of graphite (dark regions). If I understand correctly, these veins of graphite help cast iron be more machinable (along with other properties of cast iron). Robert C (of www.hypefreeblades.com) points out that the graphite flakes in cast iron make it brittle.

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A few different steels for the workpiece (mild steel, etc.), 30 Degree Rake Angle High Speed Steel
"Slow motion of what happens in the cut. Different coatings, different materials."
https://www.youtube.com/watch?v=mRuSYQ5Npek&feature=BFa&list=FLles5SBnY2MP8RwytEAsitQ

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"This old movie shows a magnified (~100x) moving image of machining steel with a zero lead angle about a +30° rake angle and about 5° relief (clearance) angle and formation of a BUE (Built up edge). It also has a cartoon showing how the BUE formation damages the finished machine surface."
https://www.youtube.com/watch?v=-Tf...DvjVQa1PpcFN8IeIXg9wYBIcVnT4jZO2dRm-KIwpN76w=

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And a educational tutorial that simulates grains and dislocations using solder-balls between two glass plates, which are "annealed" by vibrations from an ultrasonic speaker:
https://www.youtube.com/watch?v=oBb...DvjVQa1PpcFN8IeIXg9wYBOxogYKZhfD8e6H3q7hiBUk=

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Sincerely,
--Lagrangian

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"What grit sharpens the mind?"
--ZenSharping Koan