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← ScienceWhich failure appears when stainless steel alloy welds solidify?
A)Solidification cracking microsegregation✓
B)Hydrogen embrittlement sensitization
C)Stress corrosion intergranular attack
D)Fretting wear formation pitting
💡 Explanation
Solidification cracking occurs because microsegregation concentrates impurities along grain boundaries. Interface strength reduces during austenitic phase solidification. Therefore, grain boundaries pull apart rather than deform preventing brittle cracking; dissimilar expansion doesn't cause embrittlement.
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