Secondary hardening in steels arises out of the Options: A . &nbspPrecipitation of fine alloy carbides at high temperatures B . &nbspRefinement of ferrite grain size by working C . &nbspDecomposition of retained austenite upon heat treatment D . &nbspPrecipitation of complex inter-metal-lics upon heat treatment

Secondary hardening in steels arises out of the

Question

Secondary hardening in steels arises out of the

Options:

A . Precipitation of fine alloy carbides at high temperatures

B . Refinement of ferrite grain size by working

C . Decomposition of retained austenite upon heat treatment

D . Precipitation of complex inter-metal-lics upon heat treatment

Answer: Option C

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