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US 10,240,224 B2Granted
Steel alloy with tailored hardenability
AssigneeGM Global Technology Operations LLC
InventorsCharles M. Enloe, Jianfeng Wang, Curt D. Horvath, Jatinder P. Singh
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Abstract
An alloy with tailored hardenability includes carbon, silicon, manganese, nickel, molybdenum, chromium, vanadium, and cobalt. A time and temperature transformation diagram of the alloy has a bainite nose and a ferrite nose that occur at approximately the same time at approximately 4 seconds at temperatures of about 750 K and 950 K, respectively.
Claims7
A steel alloy with tailored hardenability comprising in % by weight:
- 0.2% carbon;
- either 0.6% silicon or 0.6% niobium;
- 1.2% manganese;
- 0.1% molybdenum;
- and
- 0.4% chromium, and
- wherein boron is absent from the alloy, and
- wherein a time and temperature transformation diagram of the alloy has a bainite nose and a ferrite nose that occur at approximately the same time for temperatures of approximately 750K and 950K.
5 more elements
Dependencies are inferred from the claim text.