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Continuous annealing of a Fe/0. 1C/0. 45Si/0. 05Nb/0. 1Mo dual-phase steel

Conference ·
OSTI ID:5947113
Several two-phase annealing heat treatments have been performed on a Nb and Mo microalloyed low-carbon steel. Continuous intercritical annealing followed by water quenching produces a coarse ferrite-martensite structure that has the highest tensile strength of all heat treatments utilized. The high strength arises from a combination of the dispersion hardening which occurs in ferrite and the presence of martensite. It is concluded that the ferrite-forming elements Nb and Mo do not benefit hardenability in this steel for dual phase heat treatment, in thicknesses approx. 5 mm.
Research Organization:
Lawrence Berkeley Lab., CA (USA)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
5947113
Report Number(s):
LBL-13961; CONF-820205-8; ON: DE83015984
Country of Publication:
United States
Language:
English

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