| 胀断连杆用C70S6钢的高周疲劳性能 |
| |
| 引用本文： | 刘智雄,陈思联,张英建,惠卫军,刘荣佩.胀断连杆用C70S6钢的高周疲劳性能[J].特殊钢,2010,31(3):68-70. |
| |
| 作者姓名： | 刘智雄 陈思联 张英建 惠卫军 刘荣佩 |
| |
| 作者单位： | 1昆明理工大学材料科学与工程学院，昆明650093 ；
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 |
| |
| 基金项目： | 国家科技支撑计划基金项目资助 |
| |
| 摘 要： | 采用旋转弯曲疲劳实验研究了胀断连杆用两种成分(%:0.69C-0.034V-<0.005Ti-0.015N和0.72C-0.036V-0.023Ti-0.014N)C70S6钢的高周疲劳性能。结果表明,疲劳断裂均起源于试样的表面基体,其高周疲劳性能主要受微观组织特别是珠光体片层间距的影响;含0.023%Ti的C70S6钢中珠光体片层间距较大,析出粗大(Ti,V)(C,N),导致0.023%Ti钢疲劳性能低于不含Ti的C70S6钢。
|
| 关 键 词： | C70S6钢 高周疲劳性能 微观组织 胀断连杆 |
| 收稿时间： | 2009-12-09 |
High-Cycle Fatigue Properties of C70 S6 Steel for Connecting Rod of Fracture Splitting |
| |
| Liu Zhixiong,Chen Silian,Zhang Yingjian,Hui Weijun,Liu Rongpei.High-Cycle Fatigue Properties of C70 S6 Steel for Connecting Rod of Fracture Splitting[J].Special Steel,2010,31(3):68-70. |
| |
| Authors: | Liu Zhixiong Chen Silian Zhang Yingjian Hui Weijun Liu Rongpei |
| |
| Affiliation: | 1 Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 ；
2 National
Engineering Research Center of Advanced Iron and Steel Technology, Central Iron and Steel Research Institute, Beijing 100081 |
| |
| Abstract: | High-cycle fatigue properties of two C70S6 steels without and with Ti in steel ( % : 0. 69C-0. 034V- <
0. 005Ti-0. 015N and 0. 72C-0. 036V-0. 023Ti-0. 014N) for connecting rod of fracture splitting have been studied by using rotating-bending fatigue test method. Results show that all fatigue cracks initiated at matrix of surface of specimen, and the high-cycle fatigue properties are affected by micro-structure especially by interlamellar spacing of pearlite ； the interlainellar spacing of pearlite in the steel C70S6 containing 0. 023% Ti is larger than that in the Ti-free steel C70S6 in which there is coarse ( Ti, V) ( C, N) precipitates, therefore the fatigue properties of 0. 023%Ti steel are lower that that of Ti-free steel. |
| |
| Keywords: | C70S6 Steel High-Cycle Fatigue Property Microstructure Connecting Rod of Fracture Splitting |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《特殊钢》浏览原始摘要信息 |
|
点击此处可从《特殊钢》下载全文 |
|
