Torsional fretting wear behavior of CuNiAl against 42CrMo4 under flat on flat contact

Zhang, Po; Lu, Wenlong; Liu, Xiaojun; Zhou, Mingzhuo; Zhai, Wenzheng; Zhang, Gengpei; Zeng, Wenhan; Jiang, Xiangqian

doi:10.1016/j.wear.2017.03.002

Cited by 26 publications

(15 citation statements)

References 24 publications

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“…Reducing the contact area can help to increase the contact pressure. Under the same normal load and during the same test duration, the wear depth can be increased, which improves the measurement accuracy of wear volume [24].…”

Section: Specimensmentioning

confidence: 99%

“…Coatings 2019, 9, x FOR PEER REVIEW 3 of 16 contact pressure. Under the same normal load and during the same test duration, the wear depth can be increased, which improves the measurement accuracy of wear volume [24]. The TiCN coating was prepared on the lower specimens with reactive ion plating by Baotai Coating Technology Co., Ltd (Dongguan, China).…”

Section: Specimensmentioning

confidence: 99%

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Torsional Fretting Wear Behavior of PVD TiCN Coated CuNiAl Blade Bearing in Oil and Artificial Seawater

Zhang

Wang

2019

Coatings

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The feasibility of alleviating torsional fretting wear of the blade bearing by preparing PVD TiCN coating was studied. The results show that the friction torque was highly influenced by the wear debris acting as the solid lubricant. The TiCN coating reduced the wear volume by 97.6% and 62.3% in oil and artificial seawater, respectively, which was mainly due to an increase in surface hardness. In oil, the produced sulfates and phosphates prevent seizures between the friction pair and the worn surface was characterized by polishing wear. In artificial seawater, the wear mechanism was a combination of mechanical wear and corrosion wear. This study reveals that the TiCN coating is suitable for alleviation of fretting wear in the blade bearing.

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Section: Specimensmentioning

confidence: 99%

Section: Specimensmentioning

confidence: 99%

Torsional Fretting Wear Behavior of PVD TiCN Coated CuNiAl Blade Bearing in Oil and Artificial Seawater

Zhang

Wang

2019

Coatings

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“…Since increment of wear volume is relative pronounced at the highest load of 106 N, the wear still remains slight. The critical load, at which the transition from mild to severe wear occurs, is primarily a material property [40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55]. The propagation of cracks which can result in the significant wear becomes more difficult as the fracture toughness of the material increases.…”

Section: Tribological Testsmentioning

confidence: 99%

3D Printing of Metals

2019

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Research Network and among the top 2.5% of scientists as per ResearchGate. He is credited with (i) the disintegrated melt deposition technique and (ii) the hybrid microwave sintering technique, an energy-efficient, solid-state processing method to synthesize alloys/micro/nanocomposites. He has published over 525 peer-reviewed journal papers and owns two US patents and one trade secret.His current h-index is 61, RG index is >47, and citations are greater than 14,000.Featured Application: This paper proposes a hybrid manufacturing process combining wire arc additive manufacturing with milling, which provides a cost-effective and efficient way to fabricate stiffened panels that have wide applications in aviation, aerospace, and automotive industries, etc.Abstract: This paper proposes a hybrid WAAM (wire arc additive manufacturing) and milling process (HWMP), and highlights its application in the fabrication of stiffened panels that have wide applications in aviation, aerospace, and automotive industries, etc. due to their light weight and strong load-bearing capability. In contrast to existing joining or machining methods, HWMP only deposits stiffeners layer-by-layer onto an existing thin plate, followed by minor milling of the irregular surfaces, which provides the possibility to significantly improve material utilization and efficiency without any loss of surface quality. In this paper, the key performances of HWMP in terms of surface quality, material utilization and efficiency are evaluated systematically, which are the results of the comprehensive effects of the deposition parameters (e.g., travel speed, wire-feed rate) and the milling parameters (e.g., spindle speed, tool-feed rate). In order to maximize its performances, the optimization is also performed to find the best combination of the deposition and the milling parameters. The case study shows that HWMP with the optimal process parameters improves the material utilization by 57% and the efficiency by 32% compared against the traditional machining method. Thus, HWMP is believed to be a more environmental friendly and sustainable method for the fabrication of stiffened panels or other similar structures.Featured Application: This research helps improve the capability of wire and arc-based additive manufacturing in fabricating thin-walled structures in terms of geometric accuracy, productivity, and microstructure.Abstract: Wire and arc-based additive manufacturing (WAAM) is a rapidly developing technology which employs a welding arc to melt metal wire for additive manufacturing purposes. During WAAM of thin-walled structures, as the wall height increases, the heat dissipation to the substrate is slowed down gradually and so is the solidification of the molten pool, leading to variation of the bead geometry. Though gradually reducing the heat input via adjusting the process parameters can alleviate this issue, as suggested by previous studies, it relies on experience to a large extent and inevitably sacrifices the deposition rate because the wire feed rate ...

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“…The fretting and sliding tests were evaluated on a flat on flat contact torsional wear test rig, which has been described in detail in previous research papers [15] ; [16]. Basically, a closed-loop control step motor (resolution of rotational angle, 0.018°) was used to drive the relative movement between the upper and lower specimens.…”

Section: Torsional Fretting and Torsional Sliding Testsmentioning

confidence: 99%

Torsional fretting and torsional sliding wear behaviors of CuNiAl against 42CrMo4 under dry condition

Zhang

Liu

et al. 2018

Tribology International

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Many wear failures are caused by a combination of fretting wear and sliding wear. In this study, the torsional fretting and torsional sliding wear properties of CuNiAl against 42CrMo4 were comparatively investigated under dry condition using a flat on flat contact tester. Experimental results showed that the sliding friction coefficients declined more dramatically than the fretting friction coefficients when the normal load increased. The fretting wear rate was lower than the sliding wear rate, which was partly due to the solid lubrication effect of the wear debris and strain hardening of the worn surfaces. The dominant wear mechanisms for the fretting tests were oxidation, cracks and delamination, while for the sliding tests were abrasion combined with plastic deformation.

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Torsional fretting wear behavior of CuNiAl against 42CrMo4 under flat on flat contact

Cited by 26 publications

References 24 publications

Torsional Fretting Wear Behavior of PVD TiCN Coated CuNiAl Blade Bearing in Oil and Artificial Seawater

Torsional Fretting Wear Behavior of PVD TiCN Coated CuNiAl Blade Bearing in Oil and Artificial Seawater

3D Printing of Metals

Torsional fretting and torsional sliding wear behaviors of CuNiAl against 42CrMo4 under dry condition

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