| 不同热处理条件下40Cr组织及多冲疲劳性能的研究 |
| |
| 引用本文： | 倪自飞,程巨强,刘志学,王元辉.不同热处理条件下40Cr组织及多冲疲劳性能的研究[J].矿山机械,2006,34(12):96-97. |
| |
| 作者姓名： | 倪自飞 程巨强 刘志学 王元辉 |
| |
| 作者单位： | 西安工业大学材料与化工学院,陕西西安710032 |
| |
| 摘 要： | 实际应用中，许多零件或构件承受多次冲击载荷的作用而失效，如凿岩设备中的钎杆、钎头，锻造设备中的锤杆和锻模等的失效和多冲疲劳有密切的关系。多次冲击疲劳性能是表征材料性能的主要指标之一。40Cr是用来制造较重要的调质零件的常用材料，也是目前凿岩钎头使用量较大的钢种之一。本文研究了40Cr不同热处理条件下40Cr的组织、力学性能和多次冲击疲劳性能，为这种钢的应用提供试验依据。
|
| 关 键 词： | 冲击疲劳性能 热处理条件 40Cr 组织 凿岩钎头 冲击载荷 凿岩设备 锻造设备 |
| 文章编号： | 1001-3954（2006）12-0096-097 |
| 收稿时间： | 2006-04-04 |
| 修稿时间： | 2006-04-042006-07-07 |
Study to the Metallurgical Structure of 40Cr under the Different Heat Treatment Condition and Its Multi-Impact Fatigue Properties |
| |
| NI ZiFei et al..Study to the Metallurgical Structure of 40Cr under the Different Heat Treatment Condition and Its Multi-Impact Fatigue Properties[J].Mining & Processing Equipment,2006,34(12):96-97. |
| |
| Authors: | NI ZiFei |
| |
| Affiliation: | NI ZiFei et al. |
| |
| Abstract: | The paper studies the metallurgical structure, kinetic properties and impact fatigue properties of 40Cr under the different heat treatment condition. The result shows that the metallurgical structure of 40Cr with normalization and low temperature tempering is made up of ferrite and pearlite, the structure with normalization and high tem- perature tempering is made up of ferrite and granular pearlite, the structure with quenching and low temperature tempering is made up of temper martensite, among which, the impact fatigue lifespan of 40Cr whose structure with normalization and high temperature tem- pering is highest. It also analyses the expansion behavior of multi- impact fatigue crack, and discusses the cause to improve the impact fatigue with normalization and high temperature tempering. |
| |
| Keywords: | New kind of bainite steel Structure Properties Impact fatigue |
| 本文献已被 CNKI 维普 等数据库收录！ |
