Data for stress corrosion cracking of 2 aloys are given below: For alloy A, Kisc

Question

Data for stress corrosion cracking of 2 aloys are given below: For alloy A, Kiscc-9.8 MPa.m1/2 and Kic 11 MPa.m12. For alloy B, KiScc-10.4 MPam12 and Kic 21 MPa.m12. Based on these data Alloy A exhibits variable amplitude failure while alloy B exhibits constant amplitude failure O Alloy A fails by plane stress mode while alloy B fails by plane strain mode Alloy B will take a longer time to crack than Alloy A Alloy A exhibits blister cracks while alloy B is susceptible to failure by multiple slip bands Alloys A and B are likely to exhibit grain boundary slip O Alloy A can exhibit dislocation glide while alloy B can fail by grain boundary Nabarro sliding Alloy A can exhibit void coalescence while alloy B can exhibit microscopic striations

Explanation / Answer

stres corrosion cracking is the groth of crack formation in a corrosive environment .

it can lead to unepected sudden failure of normally ductile material, especially at elevated temperature.

the crack starts at Kiscc and thereafter it groows ith slower rate .

as crack grows the value of K rises an it reaches to Kis where crack grows at very fast rate and finally fails.

for both alloy A and B the value of Kiscc is almost similar

but the Kic of alloy B is much higher than alloy A,

this indicates the allo A reaches to Kic much faster than alloy B

so alloy Acracks faster than B

so answer is alloy B ill take longer time to crack than alloy A........option C

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.