Abrasive Wear Properties of Steel Alloys

Abrasive wear in steel alloys is a pervasive degradation mechanism in which hard particles or protuberances remove material from a softer surface under relative motion. This phenomenon governs the service life of components in mining, earth-moving, agricultural and construction equipment, where interaction with sand, rock fragments and industrial abrasives is unavoidable. The resistance of a steel alloy to abrasive wear emerges from a complex interplay between intrinsic hardness, fracture toughness, microstructural constitution and alloying strategy. Hardness provides a primary barrier to penetration by abrasive particles, while adequate toughness prevents brittle crack propagation under cyclical impact. Microstructural features such as grain size, carbide distribution, phase balance and retained austenite content further modulate wear behaviour by influencing work-hardening capacity and crack-deflection pathways. Advances in alloy design increasingly focus on multi-scale engineering of microstructure, combining optimised heat treatments with controlled additions of elements like boron, chromium and vanadium to refine grain size and stabilise hard phases. Surface treatments that generate nanostructured layers or tailored residual stress profiles also show promise in extending component life. Understanding these parameters in concert allows for the development of steels that balance hardness, toughness and ductility to achieve superior performance under abrasive conditions.

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Abrasive Wear Properties of Steel Alloys publication trend

The graph below shows the total number of articles in abrasive wear properties of steel alloys across all publications each year (not limited to Nature Index journals).

Technical terms

Abrasive wear: Material loss caused by hard particles or protuberances sliding or rolling against a surface.

Hardness: A measure of a material’s resistance to localised plastic deformation or penetration by an indenter.

Fracture toughness: The ability of a material containing a crack to resist fracture, reflecting energy absorption before crack propagation.

Microstructure: The arrangement of phases, grains and defects within a material as observed at the microscale.

Retained austenite: Metastable austenitic phase preserved at room temperature that can transform under stress to enhance work hardening.

TRIP effect: Transformation-induced plasticity, wherein stress- or strain-driven phase transformation contributes to ductility and work hardening.

White layer: An ultrahard, nanocrystalline surface layer formed by severe plastic deformation or thermal effects during erosion or machining.

References

1. Role of fracture toughness in impact-abrasion wear. Wear (2019).
2. The influence of boron on the resistance to abrasion of quenched low-alloy steels. Wear (2022).
3. Formation of nanostructured surface layer, the white layer, through solid particles impingement during slurry erosion in a martensitic medium-carbon steel. Wear (2022).
4. Influence of fracture toughness on two-body abrasive wear of nanostructured carbide-free bainitic steels. Wear (2020).
5. Effect of retained austenite on adhesion-dominated wear of nanostructured carbide-free bainitic steel. Tribology International (2020).