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| 传动轴用高强度马氏体钢的疲劳性能 | |
| 引用本文： | 刘孝红,王毛球,董瀚,华文杰,徐存英.传动轴用高强度马氏体钢的疲劳性能[J].兵器材料科学与工程,2009,32(5). |
| 作者姓名： | 刘孝红 王毛球 董瀚 华文杰 徐存英 |
| 作者单位： | 1. 昆明理工大学,材料与冶金工程学院,云南,昆明,650093;钢铁研究总院,先进钢铁材料技术国家工程研究中心,北京,100081 2. 钢铁研究总院,先进钢铁材料技术国家工程研究中心,北京,100081 3. 宝山钢铁股份有限公司,特殊钢分公司,上海,200940 4. 昆明理工大学,材料与冶金工程学院,云南,昆明,650093 |
| 摘 要： | 通过旋转弯曲疲劳试验的方法,研究新开发传动轴用高强度马氏体钢25CrNi2MoVNb的疲劳性能,并与常用的18Cr2Ni4WA钢进行对比。结果表明,由于高的洁净度和细的晶粒,25CrNi2MoVNb钢在强度提高到1 500 MPa级别后,冲击韧性与1 300 MPa级的18Cr2Ni4WA钢相当。25CrNi2MoVNb钢的疲劳极限为865 MPa,显著高于18Cr2Ni4WA钢的670 MPa,25CrNi2MoVNb钢的旋转弯曲疲劳极限与抗拉强度的比值(σ-1/Rm)保持在0.5,稍高于18Cr2Ni4WA钢。 |
| 关 键 词： | 高强度马氏体钢 晶粒细化 非金属夹杂物 旋转弯曲疲劳 |
Fatigue properties of high strength martensitic steels for transmission shaft |
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| LIU Xiaohong,WANG Maoqiu,DONG Han,HUA Wenjie,XU Cunying.Fatigue properties of high strength martensitic steels for transmission shaft[J].Ordnance Material Science and Engineering,2009,32(5). | |
| Authors: | LIU Xiaohong WANG Maoqiu DONG Han HUA Wenjie XU Cunying |
| Abstract: | The rotating bending fatigue limit of a newly developed high strength martensitic steel 25CrNi2MoVNb for transmission shaft was tested and compared with that of the commonly used 18Cr2Ni4WA steel.The results show that due to its higher cleanliness and finer grain size,the 25CrNi2MoVNb steel with the strength level of 1 500 MPa had a comparable impact energy to the 18Cr2Ni4WA steel with the strength level of 1 300 MPa.The rotating bending fatigue limit of the 25CrNi2MoVNb steel was 865 MPa,while that of the 18Cr2Ni4WA steel was 670 MPa.For the 25CrNi2MoVNb steel,the ratio of the fatigue limit to ultimate tensile strength(σ-1/Rm) was 0.5,slightly higher than that of the 18Cr2Ni4WA steel. |
| Keywords: | high strength martensitic steel grain refinement non-metallic inclusion rotating bending fatigue |
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