F. Vanderschaeve et al., EFFECT OF HEAT-TREATMENT ON THE MICROSTRUCTURE OF A HIGH-NITROGEN 12-PERCENT CHROMIUM MARTENSITIC STEEL, Steel research, 64(4), 1993, pp. 221-227
The present investigation aims at a better understanding of the aging
microstructure of a high-nitrogen (0.11%N) 12%Cr steel with a view of
optimizing the mechanical properties. The precipitation behaviour is r
ather complex. The dissolution of the numerous kinds of precipitates a
nd their precipitation are studied by transmission electron microscopy
for a wide temperature treatment domain between 200 and 1150-degrees-
C. The microstructural evolutions are correlated to hardness measureme
nts with the outcome of the determination of heat treatment parameters
required to achieve the maximum of secondary hardening.