Mitigating hydrogen embrittlement in 2205 duplex stainless steel through ultrasonic surface rolling post-treated laser peening

Key Points

• Hydrogen embrittlement in duplex stainless steel was significantly reduced, enhancing mechanical properties.
• The study observed a marked increase in resistance to hydrogen embrittlement with ultrasonic surface rolling.
• Analysis involved treating duplex stainless steel with laser peening followed by ultrasonic surface rolling for effective mitigation.
• Improvements suggest potential for enhanced durability in high-stress applications, although specific limits remain.