Induction Heat Treatment - Phase I - Technology to Produce Monolithic Gradient Hardness Steel Armor.
Final rept. 1993-1995,
ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
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This report details the results of Phase I of the Dual Hard Steel Armor Program funded by the PM, Survivability, U.S. Army Tank-Automotive Command TACOM. This report investigates the use of an induction heat-treating process to produce a gradient hardness monolithic steel armor to complement MIL-A-46099, Armor Plate, Steel, Rolled-Bonded, Dual-Hardness, for thicknesses of approximately 0.5 in. Results of this investigation indicate that a conventionally heat-treated steel armor plate tempered to a hardness range of Rc 42-52 induction-hardened to approximately Rc 60 and induction tempered to approximately Rc 50 with a high hardness thickness of approximately 40 will provide acceptable ballistic results when compared to the ballistic requirements of MIL-A-46099. Future efforts Phase II will include optimization of the composition, hardness levels, and thickness gradients. Production-size plates will also be processed to ensure that the technology can be transitioned from the laboratory to production.
- Physical Chemistry
- Manufacturing and Industrial Engineering and Control of Production Systems