Titanium and niobium high strength steel alloys

Details Titanium and niobium high strength steel alloys Titanium and niobium high strength steel alloys

1980-03-13

1982-05-04

Stallard, W.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75123K, 75123J, 75123N, 75123M, 148 12C, 148 12F, C22C 3804, C22C 3806, C22C 3808, C22C 3814

Patent

active

043280323

ABSTRACT:
Steel alloys having improved mechanical properties and improved ambient and low temperature toughness following the repeated thermal exposures necessary to fuse and bond ceramic or glass coatings thereto have been prepared. Phase transformation temperatures are controlled by a critical combination of manganese, silicon, and optionally, nickel, in a steel alloy of silicon, carbon, aluminum, titanium and/or niobium, phosphorus, sulfur and iron. The resulting steel alloys have good glassability, and even after glassing demonstrate excellent yield strength, ultimate tensile strength and impact strength at both ambient and low temperatures (-20.degree. F.).

REFERENCES:
patent: 3853639 (1974-12-01), Hughes
patent: 3857740 (1974-12-01), Gondo et al.
patent: 3928083 (1975-12-01), Gondo et al.
patent: 3976514 (1976-08-01), Matsukura et al.
patent: 4082576 (1978-04-01), Lake et al.

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