FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, particularly, to development of methods designed to increase fatigue life of structural metals on the basis of material energy structure conversion in both production and operation. Hardening the plates of structural metallic materials comprises aging the plate by applying external mechanical effects thereon to cause cyclic expansion, varying said effects in the range of cyclic dozed compression stresses from σ = (3÷10) kg/mm2 to σmax = (+1÷+4) kg/mm2 and shear stresses up to τ = (±3.0÷±5.0) kg/mm2.
EFFECT: higher fatigue resistance of structural metallic materials.
2 tbl, 4 dwg
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Authors
Dates
2012-12-27—Published
2011-11-28—Filed