Match each phase in Group 1 with a description in Group 2.

Group 1 Group 2

P. E-carbide 1. A three component eutectic of iron, iron carbide, iron phosphate found in cast iron

Q. Sigma phase 2. An embrittling compound found in ferritic stainless steel

R. E-ferrite 3. Obtained on tempering of hardened steels

S. Steadite 4. Responsible for causing the weld deposit on austenitic stainless steels to be slightly magnetic

A) P-1, Q-3, R-4, S-2 B) P-1, Q-2, R-4, S-3 C) P-3, Q-2, R-1, S-4 D) P-3, Q-2, R-4, S-1

Answer & Solution

Correct Answer: Option D

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P. Martensite + Retained austenite	1. Annealing
Q. Ferrite + fine pearlite	2. Quenching
R. Ferrite + spheroidal cementite	3. Quenching + temperature at 600°C
S. Ferrite + coarse pearlite	4. Normalising

Group 1	Group 2
P. E-carbide	1. A three component eutectic of iron, iron carbide, iron phosphate found in cast iron
Q. Sigma phase	2. An embrittling compound found in ferritic stainless steel
R. E-ferrite	3. Obtained on tempering of hardened steels
S. Steadite	4. Responsible for causing the weld deposit on austenitic stainless steels to be slightly magnetic