The wear of valve-valve seat materials at elevated temperatures

Allen, C.; Sullivan, J. L.; Quinn, T.F.J.

doi:10.1016/b978-0-408-22161-0.50043-3

Cited by 1 publication

(1 citation statement)

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“…Since the first observation of oxidational wear by Fink [1], there has been much development of the theory. Most notably, Quinn and co-workers [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] have published a comprehensive theory for oxidational wear that is now the widely accepted basis for interpretation of worn surface morphology in the mild wear regime. The theory is reported to be broadly in agreement with experimental observations of oxidational wear (e.g.…”

Section: Introductionmentioning

confidence: 99%

High resolution observations of friction-induced oxide and its interaction with the worn surface

Rainforth

Leonard

Perrin

et al. 2002

Tribology International

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A detailed transmission electron microscopy study of oxide and oxygencontaining phase formation during the sliding wear of metals, composites and coatings is provided. A wide range of different materials types are reported in order to compare and contrast their oxidational wear behaviour: a low carbon stainless steel, a H21 tool steel containing 7% TiC particles, a 17% Cr white iron, an Al-Si / 30%SiC composite, an Al-alloy (6092)-15% Ni3Al composite and finally a 3rd generation TiAlN/CrN 'superhard' multilayer coating. For the ferrous alloys, nanoscale oxides and oxygen-containing phases were formed that exhibited excellent adhesion to the substrate. In all cases, an increase in oxide coverage of the surface was associated with a decrease in Lancaster wear coefficient. The oxide at the surface of the 316L and H21+7%TiC was found to deform with the substrate, forming a mechanically mixed layer that enhanced surface wear resistance. Evidence of oxidational wear is presented for the wear of the A-Si-30%SiCcomposite, but this did not give a beneficial effect in wear, a result of the brittle nature of the oxide that resulted in detachment of fine (150nm) thick fragments. The worn surface of the Al-alloy (6092)-15%Ni3Al and TiAlN/CrN coating was characterized by reaction with the counterface and subsequent oxidation, the product of which enhanced wear resistance. The observations are related to the classical theory of oxidational wear.

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