Effect of medium on friction and wear properties of compacted graphite cast iron processed by biomimetic coupling laser remelting process

2009 ◽  
Vol 255 (12) ◽  
pp. 6266-6273 ◽  
Author(s):  
Qing-chun Guo ◽  
Hong Zhou ◽  
Cheng-tao Wang ◽  
Wei Zhang ◽  
Peng-yu Lin ◽  
...  
2003 ◽  
Vol 174-175 ◽  
pp. 1082-1088 ◽  
Author(s):  
B. Uyulgan ◽  
H. Cetinel ◽  
I. Ozdemir ◽  
C. Tekmen ◽  
S.C. Okumus ◽  
...  

2007 ◽  
Vol 353-358 ◽  
pp. 788-791
Author(s):  
Takashi Murakami ◽  
T. Inoue ◽  
H. Shimura ◽  
Shinya Sasaki ◽  
Miki Nakano

In this study, Fe-2.0Si-4.6C (mass%) gray cast iron disk specimens with three different matrix phases were coated with MoS2 using pressure spraying, and the friction and wear properties of the specimens were investigated against AISI52100 steel and polytetrafluoroethylene balls under the lubrication of oil using an Optimol SRV friction tester. When AISI52100 steel balls were used as the paired material, all of the MoS2-coated gray cast iron specimens showed lower friction coefficients and higher wear resistance than the non-coated disk specimens. On the other hand, MoS2-coated gray cast iron specimens exhibited higher friction coefficients than non-coated disk specimens for the most part, when polytetrafluoroethylene balls were used as the paired material.


Vacuum ◽  
2020 ◽  
Vol 178 ◽  
pp. 109467
Author(s):  
Lisheng Zhong ◽  
Shaoxiong Zhang ◽  
Xin Wang ◽  
Haiqiang Bai ◽  
Jianlei Zhu ◽  
...  

2010 ◽  
Vol 457 ◽  
pp. 374-379
Author(s):  
Toku Itoh ◽  
Keisaku Ogi

Lubricated reciprocating tests were conducted on an SRV tester to investigate effects of stroke and frequency on frictional and wear properties of flaky graphite cast iron used for marine cylinder liner by varying frequency and stroke under a given sliding velocity in boundary and mixed lubrication regime. It was clarified that changes in coefficient of friction were significantly dependent on stroke and frequency: in boundary lubrication, coefficient of friction at steady state showed a lower value at a combination of lower frequency and therefore larger stroke. In mixed lubrication, however, a combination of lower frequency and larger stroke produced a higher friction. In boundary lubrication where no run-in process was observed, higher frequency contributed to producing rougher surfaces resulting in higher friction. In mixed lubrication bordering on boundary lubrication higher frequency promoted run-in, enhancing film formation and lowering friction. Effects of frequency and stroke also reflected on wear, changes in separation voltage between a disk and a ball specimen, which were in accordance with changes in friction.


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