The Delamination Theory of Wear

Suh, Nam P.; Saka, Nannaji; Jahanmir, Said; Fleming, J.R.; Teixeira, J J Pamies

doi:10.21236/ada003583

Cited by 167 publications

(76 citation statements)

References 7 publications

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“…Under these situations, preferential cracking of the subsurface occurs along the sliding direction, which in turn results in the detachment of the wear particles in the form of sheets or flakes in a manner described by Suh [39].…”

Section: Wear Mechanismsmentioning

confidence: 99%

Wear Behavior of Nanostructured Al and Al–B4C Nanocomposites Produced by Mechanical Milling and Hot Extrusion

Alizadeh

Taheri-Nassaj

2011

Tribol Lett

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Wear properties of a nanostructured matrix of Al prepared via mechanical milling and hot extrusion were investigated before and after incorporation of B 4 C nanoparticles. The sample powders were milled for a period of 20 h to produce nanopowders. Mechanical milling was used to prepare nanocomposite samples by addition of 2 and 4 wt% of B 4 C nanoparticles into the Al matrix. A pinon-disk setup was used to evaluate the wear properties of the hot extruded samples under dry condition. The results revealed a lower friction coefficient and a lower wear rate for the nanostructured matrix of Al in contrast to a commercial coarse grained Al matrix. The same pattern was also observed in the nanocomposite samples with respect to the base matrix. Hardness values were used to discuss the observed results. Scanning electron microscopy (SEM) was used to analyze the worn surface and wear debris.

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Section: Wear Mechanismsmentioning

confidence: 99%

Wear Behavior of Nanostructured Al and Al–B4C Nanocomposites Produced by Mechanical Milling and Hot Extrusion

Alizadeh

Taheri-Nassaj

2011

Tribol Lett

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“…Because the crack's initiation is the result of superposition of local stress concentration and the shear stress component of load, at 90 ° impact angle, the maximum shear stress area was at 0.78b (b means the half-width of contact zone) distance to wear surface, and the sheer stress was lower nearby surface and then increased followed by decreasing according to Hezz's stress theory [15] . So, with the impact energy being increased, the thickness of hardened layer will be increased, and the area, where the condition of crack initiation and propagation can be met by superposition of local stress concentration and shear stress component, will approach to maximum shear stress area and depart from the wear surface.…”

Section: Methodsmentioning

confidence: 99%

Influence of impact energy on impact corrosion-abrasion of high manganese steel

Ding

Wang

et al. 2007

J. Wuhan Univ. Technol.

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The impact corrosion-abrasion properties and mechanism of high manganese steel were investigated under different impact energies. The result shows that the wearability of the steel decreases with the increase of the impact energy. The dominant failure mechanism at a lower impact energy is the rupture of extrusion edge along root and a slight shallow-layer spalling. It transforms to shallow-layer fatigue flaking along with serious corrosion-abrasion when the impact energy is increased, and finally changes to bulk flaking of hardened layer caused by deep work-hardening and heavy corrosion-abrasion.

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“…Figure 5b shows some grooves, which are the characterizations of severe abrasion wear. Figure 6c displays a lot of sheets, which are clear proofs for fatigue/delamination wear [22].…”

Section: Wear Behaviormentioning

confidence: 99%

Correlation Between the Structure and Wear Behavior of Chromium Coatings Electrodeposited from Trivalent Chromium Baths

Zeng

Zhang

2008

Tribol Lett

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Amorphous and nanocrystalline chromium are obtained from trivalent chromium baths by electrodeposition and sequent heat treatment, and microcrystalline chromium is obtained by sintering. The relationship between the structure and wear behavior of chromium is studied. Results show that the wear resistance and wear mechanism are significantly affected by the structure. Nanocrystalline chromium exhibits higher resistance against the abrasion, adhesion, and fatigue wear than amorphous and microcrystalline chromium.

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The Delamination Theory of Wear

Cited by 167 publications

References 7 publications

Wear Behavior of Nanostructured Al and Al–B4C Nanocomposites Produced by Mechanical Milling and Hot Extrusion

Wear Behavior of Nanostructured Al and Al–B4C Nanocomposites Produced by Mechanical Milling and Hot Extrusion

Influence of impact energy on impact corrosion-abrasion of high manganese steel

Correlation Between the Structure and Wear Behavior of Chromium Coatings Electrodeposited from Trivalent Chromium Baths

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