Study on improving fretting wear properties of AISI 4135 steel via diverse surface modifications under grease lubrication

Abstract To improve the fretting wear performance of 18CrNi4A steel, DLC, TiAlN and DLC/TiAlN coatings were deposited on the surface of carburized 18CrNi4A steel, respectively. The microstructure morphologies, chemical compositions, and mechanical properties of these coatings were evaluated. The fretting tribological properties of pad/flat contact pairs for carburized 18CrNi4A steel, DLC, TiAlN and DLC/TiAlN coatings were investigated in different lubricant environments including dry sliding and #RIPP 7254 aviation grease. The results show that DLC, TiAlN and DLC/TiAlN coatings deposited on the carburized 18CrNi4A steel surface can improve surface roughness, hardness, fracture toughness and resistance to plastic deformation. DLC, TiAlN and DLC/TiAlN coatings deposited on the surface of carburized 18CrNi4A steel can make the surface of the substrate have excellent fretting wear properties. DLC and DLC/TiAlN coatings have lower coefficient of friction and better fretting wear resistance than TiAlN coatings in dry sliding condition, and DLC/TiAlN coatings have the lowest wear rate in #RIPP 7254 grease lubrication condition. In addition, the wear mechanisms of carburized 18CrNi4A steel, DLC, TiAlN and DLC/TiAlN coatings in dry sliding and #RIPP 7254 aviation grease conditions were analyzed.

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Evolution of Fretting Wear Behaviors and Mechanisms of 20CrMnTi Steel after Carburizing

Metals ◽

10.3390/met10020179 ◽

2020 ◽

Vol 10 (2) ◽

pp. 179 ◽

Cited By ~ 2

Author(s):

Jinchi Tang ◽

Xiongfeng Hu ◽

Fuqiang Lai ◽

Xiaolong Guo ◽

Shengguan Qu ◽

...

Keyword(s):

Wear Mechanism ◽

Engine Speed ◽

Wear Test ◽

Fretting Wear ◽

Wear Volume ◽

Wear Properties ◽

The Coefficient Of Friction ◽

Correlation Trend ◽

First Time ◽

Engine Power

In this paper, the fretting wear properties of 20CrMnTi steel, a common material for a rocker bracket, was discussed for the first time after it was suffered carburizing treatment. Subsequently, the fretting wear behaviors of virgin, quenched, and carburized states were studied. The effect of loads (corresponding to different engine power output) and reciprocating frequencies (corresponding to different engine speed) on wear behaviors and mechanisms of carburized specimen were further discussed. The results showed that the coefficient of friction (CoF) and wear volume loss (WVL) of the carburized specimens were significantly lower than that of virgin and quenched states. During the wear test, the surface CoF decreased gradually with the increase of applied load, while the linear correlation trend was not observed with the increase of fretting frequency as it showed an increase first and then a decrease. It was observed that the WVL increased gradually with the increase of load and frequency. With an increase of the load, the wear mechanism gradually deteriorated from the initial adhesive wear to the mixed wear mechanism. When the load was high, the oxidative wear became more severe. However, no significant effect of frequency was observed on the wear mechanism.

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The Effect of the Strain Rate on the Fretting Wear Properties of Thermally Compressed Inconel 625 Alloy

Advanced Engineering Materials ◽

10.1002/adem.202070046 ◽

2020 ◽

Vol 22 (11) ◽

pp. 2070046

Author(s):

Zhi Jia ◽

Yanjiang Wang ◽

Jinjin Ji ◽

Xuan Sun ◽

Baolin Wei

Keyword(s):

Strain Rate ◽

Fretting Wear ◽

Inconel 625 ◽

Wear Properties ◽

Inconel 625 Alloy

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Fretting wear properties of HVOF-sprayed CoMoCrSi coatings with different spraying parameters

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2018.12.039 ◽

2019 ◽

Vol 358 ◽

pp. 994-1005 ◽

Cited By ~ 5

Author(s):

Wen-jin Yang ◽

Lang Zou ◽

Xiao-ying Cao ◽

Jian-hua Liu ◽

Ding-jun Li ◽

...

Keyword(s):

Fretting Wear ◽

Wear Properties ◽

Spraying Parameters

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Investigations on torsional fretting wear properties of CuAlNi processed by ultrasonic vibration-assisted milling

Tribology International ◽

10.1016/j.triboint.2020.106238 ◽

2020 ◽

Vol 146 ◽

pp. 106238 ◽

Cited By ~ 4

Author(s):

Xin Chen ◽

Wenzheng Zhai ◽

Song Dong ◽

Kan Zheng ◽

Runzhou Xu ◽

...

Keyword(s):

Ultrasonic Vibration ◽

Fretting Wear ◽

Wear Properties ◽

Torsional Fretting

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Surface modification of aluminum alloy to improve fretting wear properties

Tribology International ◽

10.1016/j.triboint.2015.01.022 ◽

2016 ◽

Vol 93 ◽

pp. 702-708 ◽

Cited By ~ 8

Author(s):

Kenji Nimura ◽

Takashi Sugawara ◽

Tatsuhiro Jibiki ◽

Satoshi Ito ◽

Masayuki Shima

Keyword(s):

Surface Modification ◽

Aluminum Alloy ◽

Fretting Wear ◽

Wear Properties

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308 Impact-Fretting Wear Properties of Carbon Steels in High Temperature Pure Water

The Proceedings of Autumn Conference of Tohoku Branch ◽

10.1299/jsmetohoku.2013.49.85 ◽

2013 ◽

Vol 2013.49 (0) ◽

pp. 85-86

Author(s):

Akito OYAKAWA ◽

Akira IWABUCHI ◽

Michimasa UCHIDATE ◽

Hitoshi YASHIRO ◽

Yoshiki SATO

Keyword(s):

High Temperature ◽

Pure Water ◽

Carbon Steels ◽

Fretting Wear ◽

Wear Properties

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Tribological Studies of Epoxy Composites With UHMWPE and MoS2 Fillers Coated on Bearing Steel: Dry Interface and Grease Lubrication

Journal of Tribology ◽

10.1115/1.4046015 ◽

2020 ◽

Vol 142 (5) ◽

Author(s):

Neha Singh ◽

Sujeet K. Sinha

Keyword(s):

Film Formation ◽

Normal Load ◽

Bearing Steel ◽

Transfer Film ◽

Wear Properties ◽

Grease Lubrication ◽

Pure Epoxy ◽

Tribological Coatings ◽

Pin On Disc ◽

The Coefficient Of Friction

Abstract Epoxy with ultra-high molecular weight polyethylene (UHMWPE) and MoS2 fillers was coated on a bearing steel (SAE 52100). Frictional and wear properties of the coated samples in sliding contact were investigated on a pin-on-disc tribometer under a normal load of 10 N and a linear sliding speed of 1 m/s against a bearing steel ball. The optimized coating composition (72 wt% Epoxy + 7 wt% hardener + 18 wt% UHMWPE + 3 wt% MoS2) showed highly improved tribological properties compared to pure epoxy and other epoxy-based composites. There was 75% reduction in the coefficient of friction (COF) in the dry interfacial condition (COF reduced from 0.2 to 0.05) over pure epoxy and 80% reduction with grease as the lubricant. The specific wear-rate of the composite was lower by five orders of magnitude over that of pure epoxy. Other mechanical properties such as hardness, tensile strength, and Young's modulus of the composite showed increments of 86%, 121%, and 43%, respectively, with respect to those of pure epoxy. 2–3 wt% of MoS2 had drastic effects on improving strength and reducing friction and wear of the composites. For dry sliding, initial abrasive and adhesive wear mechanisms led to transfer film formation on the steel counterface, and the shearing was mainly within the transfer film. For the grease-lubricated case, a thin layer of grease helped in easy shearing, and the transfer film formation was avoided. This epoxy-based composite will have applications as tribological coatings for journal bearings.

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