Stronger and safer: New design strategy for aluminum combines strength with hydrogen embrittlement resistance

Aluminum alloys are well-known for their low weight and corrosion resistance, making them ideal candidates for applications in a low-carbon economy—from lightweight automobiles to tanks for storing green hydrogen. However, their widespread application is limited by a key challenge: they suffer from embrittlement leading to cracking and failure when exposed to hydrogen. Until now, alloys resistant to hydrogen embrittlement were rather soft, limiting their application in hydrogen-related technologies that require high strength.

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