Study on the fretting maps of Zircaloy-4 alloy against Inconel 718 alloy

Yuan, Xinlu; Zhang, Xiaoyu; Zhang, Qiang; Pu, Jian; Li, Gen; Ren, Pingdi; Zhu, Minhao

doi:10.1016/j.triboint.2021.107024

Cited by 33 publications

(6 citation statements)

References 51 publications

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“…The Ft-D-N curve (The Ft-D curve (tangential friction force Ft versus displacement amplitude D) with the number of cycles N) is a dynamic variation curve of the Ft-D curve with the number of cycles N. It reflects alterations in contact and fretting states throughout the fretting process and is a crucial indicator for exploring fretting running characteristics. [24][25][26][27][28] contact surface is relatively small. As N increases, the Ft-D curve gradually expands into a larger parallelogram shape, and the oxide film on the surface of 60Si2MnA steel is removed, resulting in a gradual increase in the tangential friction force, and the fretting is gradually entering the second stage.…”

Section: Ft-d-n Curvesmentioning

confidence: 99%

Fretting wear characteristics evolution mechanism of 60Si2MnA steel for high-speed railway fastener clips

Zeng,

Qin,

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part J:

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The fastener clips of the high-speed railway may fracture due to accumulated fretting damage, posing a hazard to train operation safety. To investigate the evolution mechanism of fretting wear characteristics of high-speed railway fastener clips, this paper conducted fretting wear tests on 60Si2MnA steel used for clips and analyzed the fretting wear characteristics under different number of fretting cycles ( N). The results indicate that as N increases, the friction coefficient rises initially, then falls, slightly rises again, and eventually stabilizes. Furthermore, the surface wear volume and depth of 60Si2MnA steel material increase continuously, and its fretting wear mechanism undergoes a transformation. Specifically, at 20,000 cycles, surface plastic deformation primarily causes material damage. While at 40,000 cycles, an oxide plastic deformation layer appears on the material surface, where adhesive wear and oxidation wear become the primary wear mechanisms. When N increases to 80,000, plastic strain accumulates continually on the material surface, causing the oxide plastic deformation layer in the outer contact area to break and detach gradually. Adhesive wear transforms into abrasive wear, cracks occur inside the material, and fatigue wear becomes a significant wear mechanism. This study fills the research gap in the fretting wear evolution mechanism of 60Si2MnA steel.

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Section: Ft-d-n Curvesmentioning

confidence: 99%

Fretting wear characteristics evolution mechanism of 60Si2MnA steel for high-speed railway fastener clips

Zeng,

Qin,

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…In this study, the normal force is only 6 N, and the sliding amplitude is 80 μm. The relatively low normal force and high sliding amplitude determines that the fretting is in the gross slip regime [24]. In this regime, the obvious materials response is that adhesion junction is completely eliminated from the contact surface and sliding wear takes place.…”

Section: Failure Mechanism Of the Materials 331 Wear Mode Analysismentioning

confidence: 99%

“…The fretting wear behavior of various kinds of zirconium alloys without shot peening has been studied in other environments (air, low temperature water or HTHPW) [20][21][22][23][24][25]. Cai and Zhou [26] reviewed the research about fretting wear of zirconium alloys and concluded that the testing environment is one of the most important parameters determining the fretting wear behavior.…”

Section: Introductionmentioning

confidence: 99%

Understanding the fretting corrosion mechanism of zirconium alloy exposed to high temperature high pressure water

Guo

Lai

et al. 2022

Corrosion Science

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“…The data acquisition interval of the displacement and friction force was 10 -4 s, and hence a friction loop included about 200 points under 50 Hz, which was enough to obtain the exact shape of F t − D curve. According to F t − D curves [36,37], not only friction coefficient and dissipated energy can be calculated, but the variation of fretting regime can also be judged during the fretting process. In addition, in this research, the immersion time was 18 h in the HTP water before the fretting wear test.…”

Section: Fretting Wear Testmentioning

confidence: 99%

Effect of Normal Force on Fretting Wear Behavior of Zirconium Alloy Tube in Simulated Primary Water of PWR

Zhang

Jiang

Ming

et al. 2022

Acta Metall. Sin. (Engl. Lett.)

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The effect of normal force on fretting wear behavior of zirconium alloy tube mated with grid dimple in simulated primary water of pressurized water reactor nuclear power plant was investigated. Results showed that the maximum wear depth, wear volume and wear coefficient of Zr alloy tube in simulated primary water at 315 °C gradually increased with increasing normal force, while the friction coefficient gradually decreased. Fretting process could be divided into four stages according to the variation of friction coefficient during test. When normal force exceeds 30 N, the fretting regime would transition from gross slip regime to partial slip regime after 3 × 10 7 cycles. Delamination was aggravated with increasing normal force, while abrasive wear became slighter. A thicker third-body layer with monoclinic ZrO 2 was formed by the tribo-sintering mechanism under higher normal force. In addition, the schematic evolution processes of delamination and third-body layer formation were displayed according to morphology observation. Keywords Zirconium alloy tube • Fretting wear • Grid-to-rod • High-temperature pressurized water • Normal force

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Study on the fretting maps of Zircaloy-4 alloy against Inconel 718 alloy

Cited by 33 publications

References 51 publications

Fretting wear characteristics evolution mechanism of 60Si2MnA steel for high-speed railway fastener clips

Fretting wear characteristics evolution mechanism of 60Si2MnA steel for high-speed railway fastener clips

Understanding the fretting corrosion mechanism of zirconium alloy exposed to high temperature high pressure water

Effect of Normal Force on Fretting Wear Behavior of Zirconium Alloy Tube in Simulated Primary Water of PWR

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