Mild and Severe Wear of Titanium Alloys

Li, X. X.; Zhang, Q. Y.; Zhou, Yuhua; Liu, J. Q.; Chen, K. M.; Wang, S. Q.

doi:10.1007/s11249-015-0637-8

Cited by 27 publications

(19 citation statements)

References 29 publications

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“…It has been reported that the reaction is triggered by the flash temperature in the contacted asperities generated by the high Hertzian pressure and friction force . And the detected Al‐O peaks (74.15ev and 75.20ev) should belong to the alumina and its hydrates, which are generated from the galvanic corrosion of CuAl coating as has been discussed earlier.…”

Section: Resultsmentioning

confidence: 99%

Sliding friction and wear behaviors of plasma sprayed aluminum-bronze coating in artificial seawater

Yang

Hou

et al. 2014

Surf. Interface Anal.

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The friction and wear behaviors of plasma sprayed aluminum–bronze (CuAl) coating sliding against silicon nitride (Si3N4) in artificial seawater were investigated and compared with those in pure water and dry sliding. The morphologies of the worn surfaces were analyzed by three‐dimensional non‐contact surface mapping and scanning electron microscopy. Moreover, chemical states of the tribochemical products of CuAl/Si3N4 in seawater were characterized by X‐ray photoelectron spectroscopy. Results show that the plasma sprayed CuAl coating possessed a specific wear rate (in order of 10−7 mm3/Nm) in seawater more than 600 times smaller than that in dry sliding due to the great alleviation in abrasion wear and splats delamination. Besides, the CuAl/Si3N4 had a friction coefficient of 0.06 in seawater, significantly lower and more stable than those in pure water and dry sliding. The tribochemical products of CuAl/Si3N4 in seawater, which were proved to be silica, alumina, and their hydrates, transformed into a loosened wear‐debris layer under the coagulation effect of the seawater and dominated the excellent lubrication state in artificial seawater. Copyright © 2014 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

Sliding friction and wear behaviors of plasma sprayed aluminum-bronze coating in artificial seawater

Yang

Hou

et al. 2014

Surf. Interface Anal.

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“…Wear tests were performed on an MPX-2000 type friction and wear tester, whose principle was described in detail elsewhere. 20 For each test, a new set of disc and pin was used. The sliding wear tests were conducted at the room temperature of 20 ℃ to 25 ℃, the relative humidity of 40% to 55%, the load of 20 N, 50 N, 80 N, and 100 N, and sliding speeds of 0.5 m/s, 0.75 m/s, 1.5 m/s, 2.68 m/s, and 4 m/s, with a fixed sliding distance of 850 m. After each wear test, the mass loss of the pins was measured using an E180 electronic analytical balance with an accuracy of 0.01 mg.…”

Section: Methodsmentioning

confidence: 99%

Effect of sliding speed and hardness on wear behavior and mechanism of AISI H13 steel

Jiang

Shou-xing²,

Wang

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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Dry sliding tests were performed under various sliding speeds and loads in air for AISI H13 steel with different hardness values. Through investigating morphologies, compositions and phases of worn surfaces, the wear behaviors and mechanisms of AISI H13 steel as a function of sliding speed and hardness were explored, and especially, the effects of friction-oxide layers and their stability were disclosed. Sliding speed and the hardness of the steel significantly affected the wear behavior and mechanism due to the evolution of friction-oxide layers. With an increase of sliding speed, more oxides were produced by the process of friction oxidation. The stability of friction-oxide layers became a key factor in determining wear rate, which was closely related with the hardness of the steel. Those friction-oxide layers formed on the quenched and tempered steel with lower hardness remained stable, providing more protection from wear. Three types of wear mechanisms were found to prevail. Adhesive and abrasive wear were dominant accompanied with oxidation mild wear at relatively low sliding speeds, where the wear resistance was proportional to the hardness of the steel. As sliding speed increased, oxidation mild wear became dominating, where the wear resistance was not related to the hardness of the steel. As the sliding speed further increased, the wear fell in oxidation mild-to-severe wear transition region, in which the wear resistance was inversely proportional to the hardness of the steel.

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“…4 One of the main factors limiting the use of titanium and its alloys are their poor tribological properties caused by their insufficient hardness as well as high and unstable friction coefficient. 8,[17][18][19][20][21] The development of surface engineering methods creates completely new areas of potential applications of modified titanium and its alloys. Tribological properties may be improved by means of an appropriate modification of the surface without affecting other advantageous properties of the material.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of the tribological properties of oxide layers obtained via thermal oxidation on titanium Grade 2

Aniołek

Kupka

Barylski

2018

Proceedings of the Institution of Mechanical Engineers, Part J:

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Thermal oxidation is an effective technique for modifying the surface of titanium and its alloys in order to improve their poor tribological properties. This paper presents the results of tests concerning titanium Grade 2 subjected to thermal oxidation at 600 ℃ and 700 ℃ for 72 h. The morphology of the surface of the formed oxide scale was determined. The surface of a specimen oxidised at 600 ℃ was unevenly covered by very fine oxide particles. Raising the temperature to 700 ℃ made it possible to cover the entire examined surface with an oxide layer. The obtained scale was characterised by the presence of large irregularly shaped agglomerated oxide particles. Tribological tests showed that the presence of an oxide layer on the surface of titanium significantly improved the resistance of the interacting tribological couple to sliding wear. The obtained 3D isometric images of the trace of wear showed that the formed traces differed in terms of width, depth and shape. It was shown that the area of the cross section of the trace of wear decreased as the temperature of thermal oxidation increased. Scanning electron microscopic observations of traces of wear formed following tribological interaction with an Al2O3 ball showed, in a non-oxidised specimen and a specimen oxidised at 600 ℃, the presence of alternating morphologically varied areas formed as a result of corrugation wear. The oxide layer obtained at 700 ℃ has the highest resistance to sliding wear and completely eliminates the adverse corrugation wear phenomenon.

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Mild and Severe Wear of Titanium Alloys

Cited by 27 publications

References 29 publications

Sliding friction and wear behaviors of plasma sprayed aluminum-bronze coating in artificial seawater

Sliding friction and wear behaviors of plasma sprayed aluminum-bronze coating in artificial seawater

Effect of sliding speed and hardness on wear behavior and mechanism of AISI H13 steel

Characteristics of the tribological properties of oxide layers obtained via thermal oxidation on titanium Grade 2

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