Fe nano-particle coatings for high temperature wear resistance

Walker, J. C. F.; Saranu, S.; Kean, A.H.; Wood, R.J.K.

doi:10.1016/j.wear.2011.01.056

Cited by 14 publications

(6 citation statements)

References 33 publications

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“…As the temperature is increased to 250 C the MML comes out and wear rate is increased. Initially, the formation of oxide layer on the surface of pin protects the surface causing less wear rate (Walker et al 2011). Rajaram et al (2010) have mentioned that the formation of oxide films at higher temperature that reduces the wear rate by avoiding direct metal-to-metal contact.…”

Section: Wear Behavior At Elevated Temperaturesmentioning

confidence: 99%

“…The oxide film may be removed due to continuous sliding action, which results in direct metal-to-metal contact, and exposing new surface to the environment. Above the critical temperature (T c ) which is above 200 C (T c ¼ 0.4 Tm, Tm, where T m is melting temperature of the Al matrix) the matrix becomes more soft and at this temperature, the transition from mild to severe wear occurs (Kumar et al 2013;Walker et al 2011). Therefore, increment in wear rate is because of the removal of large wear particles by the process of plastic deformation of the surface layer, nucleation of subsurface crack followed by crack propagation due to continuous sliding action.…”

Section: Wear Behavior At Elevated Temperaturesmentioning

confidence: 99%

“…The groove marks on debris are due to shearing of the top layer which has occurred in the direction of applied force. The larger size cracked debris having layered structure is due to softening effect of matrix (Hashim et al 1999;Walker et al 2011). The elongated flakes type debris shows groove marks that indicate that the shearing force is operative in direction of applied force has caused detachment (Rajaram et al 2010).…”

Section: Role Of Different Range Of Particle Sizementioning

confidence: 99%

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Role of Different Range of Particle Size on Wear Characteristics of Al–Rutile Composites

Arora

Kumar

Singh

et al. 2015

Particulate Science and Technology

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The present article describes in detail the wear behavior of rutile-reinforced LM13 alloy composite at elevated temperatures. Rutile particles in different amounts were reinforced into LM13 alloy by the stir casting route. The microhardness measured at different areas indicates good interfacial bonding. Wear tests were conducted for composites containing rutile particles in 10 wt.% and 15 wt.% with variation in particle size (50-75 mm and 106-125 mm). The presence of ceramic particle in the matrix improves the hardness, wear resistance, thermal stability, and durability of the materials. The wear of composite at 200 C presented entirely different wear behavior mode than that at 250 C. The wear rate of fine size reinforced composite was substantially lower than that of coarse size reinforced composite with higher load at 200 C. A transition from mild-to-severe wear in composite was observed with higher load above 150 C. The morphology of wear track and debris indicates that nucleation of cracks around the void on the interface of the particles is the main cause of surface damage.

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Section: Wear Behavior At Elevated Temperaturesmentioning

confidence: 99%

Section: Wear Behavior At Elevated Temperaturesmentioning

confidence: 99%

Section: Role Of Different Range Of Particle Sizementioning

confidence: 99%

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Role of Different Range of Particle Size on Wear Characteristics of Al–Rutile Composites

Arora

Kumar

Singh

et al. 2015

Particulate Science and Technology

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“…e hard oxide layers are formed after sliding against pin material, which could help to sustain higher loads at elevated temperatures. Experiments are performed with Ni-P/biocomposite coating applied on EN 8 steel, which was subjected to friction and wear studies [49]. e coated samples resulted in a lower friction coefficient and wear rate than bare substrate material.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pin Geometry and Orientation on Friction and Wear Behavior of Nickel-Coated EN8 Steel Pin and Al6061 Alloy Disc Pair

Yadav¹,

Lakshmikanthan²,

Ranganath

et al. 2022

Advances in Materials Science and Engineering

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Most mechanical systems (in particular, gear transmission system) undergo relative motion which results in increased friction phenomenon (friction coefficient, stresses, and wear rate) and thereby results in loss of efficiency. Mechanical parts undergo relative motion in different geometry configurations and orientations that induce a different state of stress as a result of friction. Till date, attempts are being made to minimize the friction with full sphere pin geometry configuration. The present work focused to reduce the frictional and wear rate, and experiments are conducted with tribo-pairs. i.e., nickel-coated pin surface slide against Al6061 alloy disc. The friction studies are carried out at different loads and geometries of pin surfaces (sphere and hemisphere configured at different orientations such as full sphere and hemisphere configured at 0°, 45°, and 90°) to induce different stress states with reference to sliding directions. Change in the geometry of EN8 pin material and their orientation with reference to sliding direction resulted in a different state of stress. The resulting stress levels were examined under the scanning electron microscope, which revealed the mechanisms of adhesion, abrasion, and extrusion. At a lower magnitude of orientation and load, the extent of asperity breaking lessens and material removal from pin surface decreases. Abrasion wear mechanism was observed corresponding to full sphere configuration on Al 6061 disc, whereas adhesive wear mechanisms are seen with hemisphere pins. The amount of aluminum transfer on pin surface with a hemisphere pin is comparatively more than that of full sphere configuration. At a lower magnitude of state of stress, the mechanism of sliding was dominated by the adhesion effect. At a higher level of state of stress, the mechanism of sliding was dominated by abrasion and extrusion.

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“…Reducing friction and wear is an important way to prolong the life of the hot extrusion dies and wear-resistant parts [8][9][10]. High temperature environment often results in significant loss of mechanical properties of the dies and wear-resistant parts in industrial production [8,11,12]. Commonly, changing the material composition or heat treatment of the material can improve the high temperature wear resistance [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Effects of Temperature on Wear Properties and Mechanisms of HVOF Sprayed CoCrAlYTa-10%Al2O3 Coatings and H13 Steel

Wei

Hong

et al. 2019

Metals

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In this study, the CoCrAlYTa-10%Al2O3 coatings were prepared by the high-velocity oxygen-fuel (HVOF) spraying. A series of ball-on-disk sliding wear tests were conducted to evaluate the tribological properties of the coatings at different temperatures (25 °C, 200 °C, 400 °C, and 600 °C). The results showed that the average coefficients of friction (COFs) of the CoCrAlYTa-10%Al2O3 coatings were lower than that of H13 steel at different temperatures. The average COFs of the CoCrAlYTa-10%Al2O3 coatings and H13 steel both decreased with increasing temperature. The wear rate of the CoCrAlYTa-10%Al2O3 coatings increased first and then decreased. The microhardness of worn surface of the CoCrAlYTa-10%Al2O3 coatings increased with increasing temperature, while the microhardness of worn surface of H13 steel at 25 °C and 200°C was higher than that at 400 °C and 600 °C. The wear mechanism of the two materials was mainly abrasive wear. The tribofilms were formed on the worn surface of the CoCrAlYTa-10%Al2O3 coatings, which had a good protective effect. Due to thermal softening and low binding strength of debris, it was difficult for H13 steel to form the tribofilms. The wear rate of H13 steel was much higher than that of the CoCrAlYTa-10%Al2O3 coatings at 400 °C and 600 °C, indicating that the high temperature wear resistance of the coatings was much better than that of H13 steel.

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Fe nano-particle coatings for high temperature wear resistance

Cited by 14 publications

References 33 publications

Role of Different Range of Particle Size on Wear Characteristics of Al–Rutile Composites

Role of Different Range of Particle Size on Wear Characteristics of Al–Rutile Composites

Effect of Pin Geometry and Orientation on Friction and Wear Behavior of Nickel-Coated EN8 Steel Pin and Al6061 Alloy Disc Pair

Effects of Temperature on Wear Properties and Mechanisms of HVOF Sprayed CoCrAlYTa-10%Al2O3 Coatings and H13 Steel

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