Unlubricated sliding wear of pearlitic and bainitic steels

Abstract. This study describes multi-factor-based experiments that were applied to investigate the sliding wear behaviour of quenched and tempered wear resistant steel. This study was aimed to evaluate the effect of input parameters (such as applied load, sliding velocity and sliding time) on wear rate. Full factorial design through design of experiments approach was used for investigation by establishing an empirical relationship between wear loss and input parameters and determining the optimal combination of testing parameters for minimum and maximum wear losses. Sliding wear tests were carried out using pin-on-disc type apparatus at room temperature under dry sliding wear conditions. Detailed investigation revealed that applied load was the most significant factor affecting the wear performance followed by sliding velocity and sliding time. The maximum weight loss due to wear was found to be 33.48 mg when experimentation was conducted at maximum levels of input variables and minimum wear loss of 3.12 mg was obtained at the minimum levels of load, sliding velocity and sliding time. The scanning electron microscopy of the worn pin surfaces shows that adhesion and plastic deformation were the dominating mechanisms involved during experimentation that resulted in maximum wear of the pins, and on the other hand no such mechanism persisted when the pins were worn under minimum sliding wear conditions.

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“…Similar worn surface morphology has been reported by C.C. the unlubricated sliding wear of pearlitic and bainitic steels [20].…”

Section: Worn Surface Observationssupporting

confidence: 86%

Sliding Wear Analysis of Ultra High Strength Steel Using Full Factorial Design Approach

Sharma

Kumar

Shahi

2016

MATEC Web of Conferences

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“…8 presents the macro-worn surfaces of pins tested at the highest and lowest humidity levels at all three temperature levels. Normally, oxide layers on the surface of Fe-based metal after wear would consist of Fe 3 O 4 and Fe 2 O 3 , which are macroscopically darker than the base metal, i.e., Fe 3 O 4 appears in black and Fe 2 O 3 in red while the base metal displays a metallic lustre [30][31][32]. From Fig.…”

Section: Wear Ratesmentioning

confidence: 99%

Wear between wheel and rail: A pin-on-disc study of environmental conditions and iron oxides

Lyu

Zhu

Olofsson

2015

Wear

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“…It should be added that pearlitic steel is characterized by a relatively greater resistance to abrasive wear because of the content of a hard cementite phase. This feature certainly affected the obtained results of the tests [27,28].…”

Section: Discussionmentioning

confidence: 99%

Tribological Properties of Plough Shares Made of Pearlitic and Martensitic Steels

Stawicki

Białobrzeska

Kostencki

2017

Metals

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Tribological properties of ploughshares made of pearlitic and martensitic steels were compared in field tests. Sectional ploughshares consisting of separate share-points and trapezoidal parts were subjected to examinations. Contours of the examined parts were similar, but the thickness of the parts made of pearlitic steel was 1 to 3 mm greater for the share-points and 0.5 to 2 mm greater for the trapezoidal parts. Within the tests, sandy loams, loams, and loamy sands with circa (ca.) 13% humidity were cultivated. A greater intensity of thickness reduction and mass wear of the parts made of pearlitic steel was found, which indicates a lower resistance of this steel to wear in soil. However, contour changes of the share-points and the trapezoidal parts made of pearlitic and martensitic steels were comparable, which was probably influenced by the greater thickness of the parts made of pearlitic steel. The roughness of the rake faces of the parts made of pearlitic steel was greater than that for the parts made of martensitic steel, which can be attributed to lower hardness of the former. The largest differences occurred between maximum peak heights of the roughness profile values (R p ), which indicates stronger ridging in the case of pearlitic steel. Scanning electron microscope (SEM) observations of the rake faces showed that martensitic steel was subjected to wear mostly by microcutting, but pearlitic steel was principally worn by microcutting and microploughing. During tillage, only one share-point made of pearlitic steel was broken. However, the main disadvantage of these parts was that their bending was related to the lower mechanical strength of pearlitic steel.

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Unlubricated sliding wear of pearlitic and bainitic steels

Cited by 90 publications

References 10 publications

Sliding Wear Analysis of Ultra High Strength Steel Using Full Factorial Design Approach

Sliding Wear Analysis of Ultra High Strength Steel Using Full Factorial Design Approach

Wear between wheel and rail: A pin-on-disc study of environmental conditions and iron oxides

Tribological Properties of Plough Shares Made of Pearlitic and Martensitic Steels

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