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Atom probe tomography investigation of assisted precipitation of secondary hardening carbides in a medium carbon martensitic steels
Author(s) -
DANOIX F.,
DANOIX R.,
AKRE J.,
GRELLIER A.,
DELAGNES D.
Publication year - 2011
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.2011.03537.x
Subject(s) - atom probe , intermetallic , carbide , materials science , nucleation , martensite , precipitation hardening , hardening (computing) , precipitation , metallurgy , nanometre , microstructure , composite material , thermodynamics , alloy , layer (electronics) , physics , meteorology
Summary A medium carbon martensitic steel containing nanometer scale secondary hardening carbides and intermetallic particles is investigated by field ion microscopy and atom probe tomography. The interaction between the concomitant precipitations of both types of particles is investigated. It is shown that the presence of the intermetallic phase affects the nucleation mechanism and the spatial distribution of the secondary hardening carbides, which shifts from heterogeneous on dislocations to heterogeneous on the intermetallic particles.