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CARBURIZED AND QUENCHED STEEL EXCELLENT IN LOW CYCLE FATIGUE PROPERTY, AND CARBURIZED AND QUENCHED COMPONENT

机译：低循环疲劳性能的渗碳和淬火钢，以及渗碳和淬火的成分

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摘要

PROBLEM TO BE SOLVED: To provide a carburized and quenched steel excellent in low cycle fatigue properties.;SOLUTION: The carburized and quenched steel is characterized in that the hardness at a position of 13 mm from the quenched edge in a Jominy test is ≥60×C^0.5-5(HRC); and A=(Mo+0.227Ni+190B-0.087Si-17.2P-2.74V-7.18Cs-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 of the half of the wall thickness of the failure zone; Cs is the carburization concentration (mass%) in the surface layer; Hs is a surface hardness (Hv); and Nγis the old austenite grain size of a carburized layer.;COPYRIGHT: (C)2011,JPO&INPIT

机译：解决的问题：提供一种低循环疲劳性能优异的渗碳淬火钢。解决方案：渗碳淬火钢的特征在于，在Jominy测试中距淬火边缘13 mm处的硬度为＆ge; 60×C ^{0.5 -5（HRC）;并且A =（Mo + 0.227Ni + 190B-0.087Si-17.2P-2.74V-7.18Cs-0.00955Hs + 0.0344N＆γ;）和B =（t＆times;（Hcore）^{2 ）满足关系A-0.00000293＆times; B＆ge; 14;其中，Hcore是芯硬度; （t）是有效的硬化层深度; （r）是失效区壁厚一半的失效区半径; Cs是表层的渗碳浓度（质量％）。 Hs是表面硬度（Hv）; N：是渗碳层的老奥氏体晶粒尺寸。版权所有：（C）2011，日本特许厅}}

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公开/公告号JP2011063886A

专利类型
公开/公告日2011-03-31

原文格式PDF
申请/专利权人 NIPPON STEEL CORP;
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申请/专利号JP20100248674
发明设计人 OCHI TATSURO;
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申请日2010-11-05
分类号C22C38/00;C22C38/60;C21D1/06;F16H55/06;C21D9/32;
国家 JP
入库时间 2022-08-21 18:22:11

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