Novel Design of Copper–Graphite Self-Lubricating Composites for Reliability Improvement Based on 3D Network Structures of Copper Matrix | |
Jiang XF(姜小芳)1,2; Song JJ(宋俊杰)1; Su YF(苏云峰)1; Zhang YS(张永胜)1; Hu LT(胡丽天)1 | |
刊名 | Tribology Letters |
2018-10 | |
卷号 | 66期号:4页码:143 |
关键词 | Mechanical Seals Fatigue Crack Propagation Self-lubrication Wear Mechanisms |
DOI | 10.1007/s11249-018-1098-7 |
英文摘要 | This paper proposes a new strategy to design the copper–graphite self-lubricating composites (CGSCs) for dynamic seal- ing applications. The relationships among structural parameters, mechanical and tribological properties of CGSCs were investigated. Results showed that the composites with a 3D network structure presented superior comprehensive mechani- cal performance; the bending strength, fracture toughness and impact toughness can reach 352 MPa, 9.6 MPa m1/2 and 9.2 J cm−2, respectively, which are 1.4, 1.7 and 5.8 higher than conventional Cu663–graphite composite. This new strategy was based on a combination of the large plastic deformation of the copper 3D network, and considerable crack deflection includes by spherical graphite particles in fracture. Meanwhile, this novel design shows the perfect combination of the mechanical reliability and self-lubricated ability. The 3D-CGSCs exhibit more excellent tribological properties when sliding against AISI 52100 bearing steel under dry condition at room temperature. The friction coefficient and wear rate are stable and with low value under a wide range of loads and reciprocating frequencies, and it possesses good anti-friction capability over a long sliding distance (3 km). |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/24451] |
专题 | 兰州化学物理研究所_固体润滑国家重点实验室 兰州化学物理研究所_先进润滑与防护材料研究发展中心 |
通讯作者 | Song JJ(宋俊杰); Zhang YS(张永胜) |
作者单位 | 1.中国科学院,兰州化学物理研究所,固体润滑国家重点实验室 2.中国科学院大学 |
推荐引用方式 GB/T 7714 | Jiang XF,Song JJ,Su YF,et al. Novel Design of Copper–Graphite Self-Lubricating Composites for Reliability Improvement Based on 3D Network Structures of Copper Matrix[J]. Tribology Letters,2018,66(4):143. |
APA | 姜小芳,宋俊杰,苏云峰,张永胜,&胡丽天.(2018).Novel Design of Copper–Graphite Self-Lubricating Composites for Reliability Improvement Based on 3D Network Structures of Copper Matrix.Tribology Letters,66(4),143. |
MLA | 姜小芳,et al."Novel Design of Copper–Graphite Self-Lubricating Composites for Reliability Improvement Based on 3D Network Structures of Copper Matrix".Tribology Letters 66.4(2018):143. |
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