| 预应变对不同含碳量钢材疲劳特性的影响 |
| |
| 引用本文： | 苗德华,西田新一,服部信祐. 预应变对不同含碳量钢材疲劳特性的影响[J]. 工程力学, 2008, 25(12) |
| |
| 作者姓名： | 苗德华 西田新一 服部信祐 |
| |
| 作者单位： | 天津工程师范学院机械工程系;日本佐贺大学理工学部; |
| |
| 摘 要： | 通过对非预应变15号、35号和45号钢及其各种预应变材料进行实验,研究了预应变量对不同含碳量钢材疲劳强度和疲劳裂纹发生的影响。实验结果表明:在相同的预应变预量的条件下,材料的疲劳极限随含碳量的增加而提高;当预应变量较低时,预应变材料的疲劳极限低于非预应变材料,含碳量越高降低的程度越明显;当预应变量较高时,材料的疲劳极限随预应变量的增加而恢复或提高。
|
| 关 键 词： | 预应变 疲劳极限 疲劳裂纹 碳钢 硬度 |
EFFECT OF PRE-STRAIN ON FATIGUE PROPERTIES OF CARBON STEELS |
| |
| MIAO De-hua,NISHIDA Shin-ichi,HATTORI Nobusuke. EFFECT OF PRE-STRAIN ON FATIGUE PROPERTIES OF CARBON STEELS[J]. Engineering Mechanics, 2008, 25(12) |
| |
| Authors: | MIAO De-hua NISHIDA Shin-ichi HATTORI Nobusuke |
| |
| Affiliation: | 1. Department of Mechanical Engineering;Tianjin University of Technology and Education;Tianjin 300222;China;2. Department of Mechanical Engineering;Saga University;Honjo-Machi 1;Saga City;840-8502;Japan |
| |
| Abstract: | Fatigue test has been performed to investigate the effect of pre-strain on fatigue strength and fatigue crack initiation of carbon steels. Three kinds of typical carbon steel have been employed as tested materials. Main results summarized in this study are as follows: for the same ratio of pre-strain, fatigue limit increases with the increasing of carbon content, but the effect of carbon content on fatigue limit of pre-strained specimen is less than that of non pre-strained one. For lower pre-strain rate, f... |
| |
| Keywords: | pre-strain fatigue limit fatigue crack carbon steel hardness |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
