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Materials

Materials

Extreme impacts make metals stronger when heated

13 Jun 2024 Isabelle Dumé
Three images showing particles hitting a metallic surface at about the same velocity, but at different temperatures: 20 C, 100 C and 177 C. The hotter the temperature, the higher the particle rebounds
Fast rebound: Three particles hitting a metallic surface at about the same velocity. As the initial temperature of the metal is increased, the rebound is faster, and the particle bounces higher because the metal becomes harder, not softer. (Image courtesy of the researchers)
Heating metals usually makes them softer, but new micro-ballistic impact testing experiments show th

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Isabelle Dumé is a contributing editor to Physics World
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