| 轴承钢中M/B复合组织形态及其断裂机理 |
| |
| 引用本文： | 汪建利. 轴承钢中M/B复合组织形态及其断裂机理[J]. 安徽工程科技学院学报：自然科学版, 1999, 0(2) |
| |
| 作者姓名： | 汪建利 |
| |
| 作者单位： | 安徽机电学院 |
| |
| 摘 要： | 研究含碳量对钢中马氏体／贝氏体（Ｍ／Ｂ）复合组织形态和断裂机理的影响。试验结果表明，由于钢中含碳量不同，下贝氏体形成特点存在差异，使贝氏体分布发生变化，从而导致不同含碳量Ｍ／Ｂ复合组织断裂机理的差异。轴承钢中Ｍ／Ｂ复合组织对强韧性的主要贡献应归功于下贝氏体对裂纹扩展的阻碍作用，同时还与下贝氏体在组织的分布有关。
|
| 关 键 词： | 轴承钢 M／B复合组织 断裂机理 |
The Morphology of M/B Duplex Microstructure in Bearing Steel and its Fracture Mechanism |
| |
| Wang JianLi. The Morphology of M/B Duplex Microstructure in Bearing Steel and its Fracture Mechanism[J]. Journal of Anhui University of Technology and Science, 1999, 0(2) |
| |
| Authors: | Wang JianLi |
| |
| Affiliation: | Anhui Institute of Mechanical and Electrical Engineering Wuhu 241000 |
| |
| Abstract: | Effects of carbon content in steel on the M/B duplex microstructure and fracture mechanism were studied. The experimental results show that, because of different carbon contents of steel, there are the differences in forming characteristic and distribution of lower beinite, and there is the difference in the fracture mechanism of M/B duplex microstructure. The great toughness of M/B duplex microstructure in GCr15 steel is mainly due to the blocking effect of lower bainite on crack propogation, and is related to distribution of lower bainite. |
| |
| Keywords: | bearing steel M/B duplex microstructure fracture mechanism |
| 本文献已被 CNKI 维普 等数据库收录！ |
