Remarks on Wear Transitions Related to Hardness and Size of Abrasive Particles

Pintaúde, Giuseppe

doi:10.5772/intechopen.99324

Cited by 2 publications

(2 citation statements)

References 52 publications

(79 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following equation (1), the wear coefficient can be calculated by assuming a hardness of the aluminum of 1,500 MPa. The calculated Archard wear coefficients, k , are in the range of 0.003 to 0.007 which is close to the severe wear values in Giuseppe (2021).…”

Section: Resultssupporting

confidence: 72%

See 1 more Smart Citation

The effect of sand on the wear of anodized aluminum

Pope,

Jackson

2023

ILT

View full text Add to dashboard Cite

Purpose The purpose of this paper is to use a wear test to determine the effect of sand on the wear rates of materials typically used in aerospace applications. Once a repeatable wear test has been established, it can be used to test any combination of materials or coatings. The effectiveness of several different test methods will also be evaluated, including the sample height, surface roughness and mass difference. In addition, the current work will observe the differences between applying sand before the samples are brought into contact or after. The wear rates obtained from these tests could also be used to predict the wear of other components in similar abrasive particulate environments. Design/methodology/approach A modified block-on-flat wear test of anodized aluminum on hard coat anodized aluminum was used to study this. The experiments were performed with and without sand to study the effects of the sand. Two methods of adding sand were also evaluated. Weighing and profilometry were used to study the differences between the tests. Findings Wear rates have been calculated based on both the change in the masses of the samples and the change in the height between the upper and lower samples over the course of each test. The wear rates from the change in the masses are repeatable with and without sand, but the results for the change in height show no repeatability without sand. In addition, only in the presence of sand do the trends for the two methods agree. The wear rate was found to be non-linear as a function of load and therefore not in agreement with Archard’s Wear Law. The wear rate also increased significantly when sand was present in the contact for the duration of the test. The sand appears to change the wear mechanism from an adhesive to an abrasive mechanism. Black wear particles formed both when there was sand and when there was not sand. The source of these particles has been investigated but not determined. Originality/value This work has not been previously published and is the original work of the authors.

show abstract

Section: Resultssupporting

confidence: 72%

“…Following the wear mechanism description for third-body abrasive wear in Giuseppe (2021), the wear mechanism with sand appears to fall into the severe abrasive wear category. Following equation ( 1), the wear coefficient can be calculated by assuming a hardness of the aluminum of 1,500 MPa.…”

Section: Resultsmentioning

confidence: 99%

The effect of sand on the wear of anodized aluminum

Pope,

Jackson

2023

ILT

View full text Add to dashboard Cite

show abstract

Wear Resistance of Fe–Cr–C Hardfacing Deposited by Flux-Core-Double-Wire GTAW in Rubber Wheel Abrasion Test

Colaço,

Turazi,

Stryhalski

et al. 2023

Materials Performance and Characterization

View full text Add to dashboard Cite

The wear resistance of metals can be improved by using the hardfacing technique. Different processes can produce it with the desirable microstructures and mechanical properties. This study presents an original method, flux-core-double-wire of gas-shielded tungsten arc welding, in which wires of different compositions are used simultaneously to obtain different microstructures. The deposition was controlled through the following parameters: welding speed, deposition current, standoff distance, torch angle, and pulse frequency of wire feed. Four coatings were deposited on AISI 1020 steel substrate by combining the cored wires: Fe–Cr–C, Fe–Cr–C–Nb, Fe–Cr–C–Mo–Nb, and Fe–Cr–C–Mo–Ti. The combination of these wires resulted in a hypoeutectic microstructure with niobium and titanium carbides, with an average hardness of 650 HV0.3. The hypereutectic microstructures were formed by different niobium contents, with a microhardness range from 820 to 1,020 HV0.3. The performance of the hardfacing was evaluated in the rubber wheel abrasion test described by ASTM G65, Standard Test Method for Measuring Abrasion Using the Dry Sand/Rubber Wheel Apparatus (Superseded), procedure B. The results revealed that the carbide cracking distinguished the wear resistance, and the hardness was not enough to separate the wear behavior. Still, the volume fraction of carbides was a decisive microstructural parameter.

show abstract

Remarks on Wear Transitions Related to Hardness and Size of Abrasive Particles

Cited by 2 publications

References 52 publications

The effect of sand on the wear of anodized aluminum

The effect of sand on the wear of anodized aluminum

Wear Resistance of Fe–Cr–C Hardfacing Deposited by Flux-Core-Double-Wire GTAW in Rubber Wheel Abrasion Test

Contact Info

Product

Resources

About