WEAR OF THE 100Cr6 STEEL DETERMINED ITS HARDNESS AND EXTERNAL INPUT FUNCTIONS AT LUBRICATION OF TRANSOL 150 WITH ADDITION OF 3% OF MoS2

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WEAR OF THE 100Cr6 STEEL DETERMINED ITS HARDNESS AND EXTERNAL INPUT FUNCTIONS AT LUBRICATION OF TRANSOL 150 WITH ADDITION OF 3% OF MoS2

Journal Title: Tribologia - Year 2009, Vol 225, Issue 3

Abstract

Tribological investigations, which were carried out using a rotatable plan for three independent variables (pressure pH, sliding velocity v, and ball hardness H made of 100Cr6 steel), are presented in this paper. The assumed range of the hardness (24 – 62 HRC) reflects the whole area of the hardness applied in the construction of the toothed gear. The diameter of the ball wear marks was accepted as the output criterion of the experiment with the friction path equal to 33.4 meters. Lubricants were made by mixing of 3% of MoS2 (determine by weight) with oil Transol 150. The tests were carried out using a 4-ball apparatus. The results of these experiments (input vs. output) were evaluated using regression analysis. A quadratic polynomial was employed as the approximation function. The wear function d=f(pH,v,H) for sliding nodes working with concentrated contact point was worked out. Significant influence of the magnitude on wear was reported. It was found that this relation is ambiguous and depends on external input function. The binding of hardness together with external input function shows that the obtained function d = f(pH, v, H) is not monotonic but has an extremum.<br/><br/>

Authors and Affiliations

Tadeusz Leśniewski

Keywords

EP ID EP516679
DOI -
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