Question

Which of the statements is not true for Bainite, which is a micro constituent in Iron–Carbon Alloys?

• A. The phases present in Bainite are \( \alpha \)-Ferrite + Fe3C
• B. Hardness and strength is less than fine Pearlite
• C. Hardness is less than Martensite
• D. Ductility is greater than Martensite

Hint:

Bainite offers a balance between strength and ductility, being harder than pearlite but less brittle than martensite. It is a desirable phase in steel for many applications.

Answer 1

The Correct Option is B

Bainite is a phase in iron-carbon alloys that forms at temperatures between those for pearlite and martensite. The hardness and strength of Bainite are generally greater than that of fine Pearlite but less than that of Martensite. The statement in option (b) is incorrect because Bainite is harder and stronger than fine Pearlite.