Materials Today

New Steel Alloy is Both Strong and Ductile

BOTW-50w  Source:  Materials Today

“For the steel industry, there may now be a way out of a dilemma that has existed ever since people first began processing metal. In a paper in Nature, scientists at the Max-Planck-Institut für Eisenforschung in Düsseldorf, Germany, report a new type of metallic material that is both extremely strong and highly ductile. Up to now, one of these material properties could only be improved at the expense of the other, but this new advance could alter that trade-off, leading to the creation of lighter metallic components with thinner walls.”

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Making Metal Wires – No Heating Required

BOTW-50w  Source:  Materials Today

“A team of engineers from North Carolina State University looked to eutectic gallium indium (EGaIn) – a metal with a melting point of ∼15.5 °C – to produce thin wires at room temperature. Conventional electrical wires are fabricated by using large forces to repeatedly pull and elongate a metal rod that had been produced at high temperatures. The approach taken by Prof. Michael Dickey and his team is rather different.”

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New Boride Material Forms Own Protective Coating

BOTW-50w  Source:  Materials Today

“This resistance to oxidation is possible because of the presence of aluminum in layers between molybdenum and boron layers,” Barsoum said. “When heated to high temperatures in air the aluminum atoms selectively diffuse to the surface and react with oxygen – forming a surface aluminum oxide, or alumina, protective layer that slows down further oxidation considerably. So the material forms its own protective coating.”

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