Tribological behaviour of SiC particle-reinforced copper matrix composites
Tribological behaviour of SiC particle-reinforced copper matrix composites
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DOI：
10.1016/s0167-577x(99)00273-6
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发表时间：
2000-05
影响因子：
3
通讯作者：
S. Tjong;K. Lau
中科院分区：
文献类型：
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作者：
S. Tjong;K. Lau
采用热等静压法制备了纯铜及其SiC颗粒增强复合材料。在针盘式试验机上研究了铜及其复合材料的摩擦学性能。在干燥的环境条件下，将销钉滑动到硬化的钢盘上。在两体磨料磨损测量中，圆盘表面用240粒度的SiC砂纸粘接。磨料磨损测量表明，软铜具有极高的磨损损失。然而，在15-55 n的载荷下，SiC颗粒添加量达到20 vol.%时，铜的耐磨性明显提高。干滑动磨损试验也表明，与纯铜相比，SiC颗粒添加量达到20 vol.%的复合材料的磨损损失更低。这是由于增强SiC颗粒在滑动过程中有效地减少了亚表面区域的磨损变形程度。
Pure copper and its composites reinforced with SiC particles were prepared by hot isostatic pressing (HIP) process. The tribological behaviour of copper and composites was studied on a pin-on-disc tester. The pins were slid against a hardened steel disc under dry ambient conditions. In two-body abrasive wear measurements, the disc surface was bonded with a SiC abrasive paper of 240 grit size. The abrasive wear measurements showed that soft copper exhibits an extremely high wear loss. However, additions of SiC particles up to 20 vol.% appeared to improve the abrasive wear resistance of copper significantly under the applied loads of 15–55 N. Dry sliding wear tests also indicated that the composite with 20 vol.% SiC exhibits a lower wear loss compared to pure copper. This was due to the reinforcing SiC particles being effective to reduce the extent of wear deformation in the subsurface region during sliding.