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← TechnologyWhich cracking risk increases when rapid quenching follows weldment of high-carbon steel structures?
A)Hydrogen embrittlement cracking✓
B)Lamellar tearing initiation
C)Liquation cracking near fusion
D)Solidification centerline cracking
💡 Explanation
Hydrogen embrittlement cracking occurs where atomic hydrogen forms during welding and diffuses into the hardened metal because rapid quenching increases the steel's susceptibility. Therefore, hydrogen embrittlement is more likely, rather than liquation/solidification from weld composition, or stepwise cracking from inclusions.
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