Average contact temperature and surface layer structure in steel friction couple under high density electric current at different contact pressures

2018 ◽  
Author(s):  
M. I. Aleutdinova ◽  
V. V. Fadin ◽  
K. A. Aleutdinov
Keyword(s):  
Surface Layer ◽  
Electric Current ◽  
Layer Structure ◽  
High Density ◽  
Contact Temperature ◽  
Friction Couple ◽  
Contact Pressures

The investigation of disturbed surface layer structure by the external photoeffect under X-ray diffraction conditions

1982 ◽  
Vol 71 (2) ◽  
pp. 603-610 ◽  
Author(s):  
V. G. Kohn ◽  
M. V. Kovalchuk ◽  
E. M. Imamov ◽  
B. G. Zakharov ◽  
E. F. Lobanovioh
Keyword(s):  
Surface Layer ◽  
Layer Structure ◽  
X Ray Diffraction ◽  
X Ray

scholarly journals Effect of High Density Electric Current Pulse on Solidification of Cu-37.4 wt.%Pb Monotectic Alloy Melt

2019 ◽  
Vol 26 (1) ◽  
pp. 34-40
Author(s):  
Teng MA ◽  
Guihong GENG ◽  
Xiaosi SUN ◽  
Xi HAO ◽  
Weixin HAO
Keyword(s):  
Wear Resistance ◽  
Electric Current ◽  
Current Pulse ◽  
Metal Cluster ◽  
High Density ◽  
Formation Mechanisms ◽  
Electric Current Pulse ◽  
Monotectic Alloy ◽  
Scanning Calorimetry ◽  
Cluster Theory

The effect of high-density electric current pulse (ECP) on the solidification of Cu-37.4 wt.%Pb monotectic alloy melt was investigated. The microstructure formation mechanisms of ECP were clarified according to liquid metal cluster theory. The results demonstrated that with ECP treatment, the microstructure of Cu-Pb monotectic alloy became finer, the distribution of Pb phase in the matrix was more even and the solute trapping was significantly apparent. Based on the metal liquid cluster theory under ECP, the solid solubility increase result might be due to the salvation clusters increase under the action of pulse current, leading to the binding force increase among solute atoms and solvent atoms. Simultaneously, the aforementioned results were verified through the Differential Scanning Calorimetry (DSC) curve analysis. The results of hardness test, anti-friction test and wear- resistance test show that the ECP can enhance the hardness, improve the properties of anti-friction and wear-resistance of the alloy.

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