Influence of subsurface microstructure on the running-in of an AlSi alloy

Linsler, Dominic; Schlarb, T.; Weingärtner, Tobias; Scherge, Matthias

doi:10.1016/j.wear.2015.02.044

Cited by 11 publications

(4 citation statements)

References 19 publications

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“…This submicrometer-thick nanostructured layer may considerably reduce the COF under lubricated sliding with gentle run-in conditions ( 17 , 18 ), but COF reduction disappeared at high sliding speeds ( 17 ). The friction-induced nanostructured layer is ineffective in lowering the COFs under dry sliding ( 7 , 8 , 19 , 20 ), during which the sliding-induced plastic deformation is much more intensive than that with lubrication.…”

Section: Introductionmentioning

confidence: 99%

Lowering coefficient of friction in Cu alloys with stable gradient nanostructures

et al. 2016

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Section: Introductionmentioning

confidence: 99%

Lowering coefficient of friction in Cu alloys with stable gradient nanostructures

et al. 2016

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“…It was shown by numerous experiments [8][9][10][11][12] that friction and wear behave extremely repeatable provided that the adequate energetic range for the running-in was found. It can be demonstrated that the coefficient of friction at the end of the running-in cof final , crucially depends on the magnitude of the initial coefficient of friction cof inital , since the initial friction power density determines how the third body forms.…”

Section: Running-in Corridormentioning

confidence: 99%

The Running-in of Lubricated Metal-Metal Contacts—A Review on Ultra-Low Wear Systems

Scherge

2018

Lubricants

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The running-in of lubricated metal-metal contacts leading to ultra-low wear is inseparably connected with the formation of the third body and vice versa. Adequate tribological stressing provides the system with a power density that leads to complex changes of topography, near-surface morphology and chemical composition. During the running-in these changes proceed until the system shows small friction and ultra-low wear rates and performs stable with low sensitivity to external perturbations. By means of high-resolution wear measurement as well as physical and chemical analysis the capability of a tribological system to develop the third body can be determined. Moreover, the running-in can be controlled by sample finishing, oil additivation and the sequence of initial stressing steps. This contribution summarizes 20 years of own research on ultra-low wear systems and its applications.

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“…Attention was particularly paid to the frontier between aluminum with gallium markers and without. The experiment with the Ga marker was conducted at 25 MPa and a disk sliding distance of 1200 m which corresponds to an effective sliding distance of the pin of 45 m. Details of the experiment are described in [13].…”

Section: Shear Analysismentioning

confidence: 99%

Tribofilms Forming in Oil-Lubricated Contacts

2016

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Abstract:The subject of the present paper is the characterization of third bodies of run-in systems. By means of continuous friction and wear measurement, lubricated steel-steel and steel-aluminum contacts were evaluated. Microstructure, chemical composition and response of the materials to shear were analyzed by XPS/AES and focused ion beam technique. After a proper running-in, both systems developed a third body. The third body differs significantly from the base materials. In addition to adapted microstructure and near-surface chemistry, the third body exhibited a substructure characterized by a near-surface zone that accommodates shear and a second, deeper region that ensures strengthening.

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Influence of subsurface microstructure on the running-in of an AlSi alloy

Cited by 11 publications

References 19 publications

Lowering coefficient of friction in Cu alloys with stable gradient nanostructures

Lowering coefficient of friction in Cu alloys with stable gradient nanostructures

The Running-in of Lubricated Metal-Metal Contacts—A Review on Ultra-Low Wear Systems

Tribofilms Forming in Oil-Lubricated Contacts

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