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50 Years Ago

50 years ago, steel got stronger and stretchier

Excerpt from the August 19, 1967, issue of Science News

7:00am, August 10, 2017

BUILDING UP TO IT  Scientists are still trying to make steel, an architectural mainstay, stronger but not too brittle.

Ductile, strong steel

Fundamental scientific knowledge of the behavior of metallic crystals has led to the design of a new series of alloy steels, stronger and tougher than those now available. The new alloys can be stretched from two to five times more than previous ones, yet also have high strength…. The alloys, called TRIP steels, are produced by [the process] Transformation Induced Plasticity. — Science News, August 19, 1967


TRIP steels are still used in cars. But the quest for a strong, lightweight steel continues, spurred by better knowledge of how a material’s nanostructure affects its overall properties. One surprising approach: embedding tiny, brittle iron-aluminum grains within steel. A

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