Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich mechanism reduces steel rebar strength during rapid heating?
A)Debonding of cementite phases occurs✓
B)Decreased covalent bonding overcomes lattice
C)Increased ionic character enables glide
D)Hydrogen embrittlement lowers yield strength
💡 Explanation
Debonding of cementite reduces steel strength, because at high temperatures, thermal stresses weaken the interfacial bonds between cementite and ferrite; therefore, fracture occurs, rather than plastic deformation because the interfaces fail under shear.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which risk during integrated circuit fabrication increases when deposited polysilicon has high crystalline lattice defect density?
- Which net outcome inevitably occurs when a sealed cryogenic tank undergoes self-pressurization?
- Which phenomenon causes spreading of electron wave functions beyond well-defined quantum dot boundaries at room temperature?
- Which outcome occurs when an internal combustion engine's cooling system fails completely?
- Which risk increases when improperly torqued bolts join structural steel?
- Which phenomenon arises where inertial force balances gravity?
