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STEEL MATERIAL FOR HIGH FREQUENCY INDUCTION CONTOUR HARDENING HAVING EXCELLENT LOW CYCLE FATIGUE PROPERTY AND INDUCTION CONTOUR HARDENED COMPONENT
STEEL MATERIAL FOR HIGH FREQUENCY INDUCTION CONTOUR HARDENING HAVING EXCELLENT LOW CYCLE FATIGUE PROPERTY AND INDUCTION CONTOUR HARDENED COMPONENT
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机译:具有出色的低循环疲劳性能和感应轮廓硬化成分的高频感应轮廓硬化钢材料
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摘要
PROBLEM TO BE SOLVED: To provide a steel material for high frequency induction contour hardening having excellent low cycle fatigue properties.;SOLUTION: The steel material is characterized in that A=(Mo+0.227Ni+190B-7.18C-0.087Si-17.2P-2.74V-0.00955Hs+0.0344Nγ), and B=(t×(Hcore)2) satisfy the relation of A-0.00000293×B≥14; wherein Hcore is a core hardness; (t) is an effective hardened layer depth; (r) is the radius of the failure zone or the half of the wall thickness of the failure zone; Hs is a surface hardness (HV); and Nγ is the old austenite grain size of an induction hardened layer.;COPYRIGHT: (C)2011,JPO&INPIT
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