Chemical Engineering Basics
In age-hardenable alloys, maximum ductility is obtained

In as cast state
After overageing
After optimum ageing
Immediately after solution treatment and subsequent quenching

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Chemical Engineering Basics
Maraging steels derive their strength from the following mechanism:

Fine dispersions of Fe₃ C nucleated on dislocations in austenite
A fine, highly dislocated and strong martensite
Fine dispersions of alloy carbides in a ferrite matrix
Fine dispersions of intermetallics of Fe, Ni, Ti etc

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