Reconciling ultrahigh strength and hydrogen embrittlement resistance via discontinuous L12 precipitation in a high-entropy alloy

Key Points

• Increased ultrahigh strength is achieved without compromising hydrogen embrittlement resistance.
• Key evidence shows that the mechanical properties significantly enhance with discontinuous L12 precipitation.
• Assessment involved examining the microstructure and its effects on alkali metal sulfide exposure across various alloy compositions.
• This approach may enable broader applications in aerospace and automotive industries, though real-world performance is still to be confirmed.