The Effects of Cr and Ni Contents and Heat Treatment on Mechanical Properties of a Medium Carbon Secondary Hardening Steel
(Room 202A)
08 May 17
2:30 PM
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3:00 PM
Tracks:
Enhancement of AHSS Through Optimized Microalloying & Thermomechanical Processing
The effects of Cr and Ni contents and heat treatment on the mechanical properties of high strength, high toughness secondary hardening steels were studied. The compositions examined (in wt. %) were 0.4C-xCr-yNi-2Mo-0.5W-0.5V. Ni levels of 3 and 5 wt. % were considered. For a Ni content of 3 wt. %, Cr was varied from 4 to 6 wt. %. For a Ni content of 5 wt. %, Cr was varied from 4.5 to 5.5 wt. %. The heat treatment variables examined were austenitizing temperature, the rate of cooling from the austenitizing temperature and tempering temperature.