Hydrogen, monopoles, benches, solitary lectures

Events in Cambridge and Pohang, correlated by time and space.

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

Professor Soichi Nambu, revisiting Cambridge. Guo Lei is on the right and Neel Bhattcharya on the left.
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

Notice the colourful Kit Kats, available only in Japan
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

Mon ami, mon amour, mon baguette!
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

Microamps in action
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

Fewer microamps
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

Rebooting the system, Seung Woo Seo
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

Professor Dong Woo Suh, deep in thought. What is this strange object?
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

Corrosion experiments in progress at POMIA, POSTECH.
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

POMIA, the partner institute to GIFT
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

The wooden benches in the GIFT garden have been failing. Here, Professor Dong Woo Suh and Harry Bhadeshia explain why.
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

Notice the continuous crack on the horizontal beam to which the vertical slats are connected by "dove tail" type joints and glue. Notice also that the cracks follow the grain of the wood.
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

This bench has not developed the cracks as yet.
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

… although there are clear signs of distress, with the grain of the wood clearly playing a role
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

This bench on the other hand has completely failed through the action of tensile stresses by people sitting on it, and, as seen in the next picture, the failure of the horizontal beam.
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

The fatal longitudinal cracks, which basically compromise the integrity of the joints.
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

Another sectacular failure.
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

The benches are at various stages of failure. The solution is to use a beam whose grain does not follow its length. Must be hard to get such beams. So the alternative is to screw the vertical slats in poisition, rather than create stress concentrations by forcing the vertical slats into the holes. This would create tensile stresses normal to the flow of the grain, and hence failure.
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

Only one student in Harry's lecture on bulk nanostructured steel. Soon-Young Jun is clearly an excellent student.
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

The monopoles in action
hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures

hydrogen, monopoles, wooden benches, steel, metallurgy, Soichi Nambu, lectures




Anisotropy of pipes Abrasion of superbainite Non-cubic ferrite Computational metallurgy Theory for hydrogen
Cottrell issue Surface hydrogen Piping TiC precipitates Nb-rich pipe
TRIP welds Review, LTT welds MA constituent Microstructural entropy Multiple martensite

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