Ductility and the abrasive wear of an ultrahigh strength steel

• Published in: Wear 1983-03, Vol.85 (3), p.347-360
• Main Authors: Garrison, W.M., Garriga, R.A.
• Format: Article
• Language: English
• Subjects: abrasion; Applied sciences; Contact of materials. Friction. Wear; Cross-disciplinary physics: materials science; rheology; ductility; Exact sciences and technology; hardness; impact testing; Materials science; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; Metals, semimetals and alloys; Metals. Metallurgy; Physics; Specific materials; steel; wear
• ISSN: 0043-1648; 1873-2577
• DOI: 10.1016/0043-1648(83)90229-6

Ploughing of material to either side of the grooves made by abrasive particles and single indenters was observed for both abrasive wear and single point cutting. The degree of ploughing decreases as the hardness of the material being tested increases. It is possible to incorporate ploughing into the usual equation for the volume abrasive wear rate by introducing a term 1 − f, where f is the fraction of a wear groove ploughed to either side of the abrasive particle but not removed from the surface. The equation becomes volume wear rate ≈ L(1−f H s where L is the applied load and H s is the surface hardness. Although it is possible to relate 1 − f to hardness through single point scratching experiments, there is evidence that 1 − f could depend primarily on ductility and not on hardness. As an initial step in exploring the dependence of this ploughing term on the mechanical properties of the abraded material, a simple model of the abrasive wear process is proposed. This model is evaluated in terms of the abrasive wear and tensile properties of a low alloy steel heat treated to hardnesses ranging from 496 to 680 HV.