Friction and wear of Inconel 690 and Inconel 600 for steam generator tube in room temperature water

Lim, Minkyu; Oh, Se-Doo; Lee, Young-Ze

doi:10.1016/s0029-5493(03)00187-0

Cited by 63 publications

(16 citation statements)

References 5 publications

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“…A lot of research work has been done to assess the fretting wear characteristics of materials used in nuclear engineering under various mechanical parameters (frequency, displacement amplitude, normal force, etc. ), service condition and materials structures [7,14,16,26]. Gross slip and partial slip regime are the two major domains that can be recognized according to the contact conditions.…”

Section: Fretting Wear Analysis Of Different Tube Materials Used In Hmentioning

confidence: 99%

Fretting Wear Analysis of Different Tube Materials Used in Heat Exchanger Tube Bundle

Abbas¹,

Khushnood²,

Nizam³

et al. 2017

Adv. Sci. Technol. Res. J.

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Research on heat exchange has been carried out for more than five decades because of its importance in process industries and power generation plants. Heat exchanger experiencing cross flow are vulnerable to flow-induced vibration. This vibration causes the interaction of tubes with the baffle resulting in a fretting wear of the tubes. The present study focuses on fretting wear analysis of different tube materials. Fretting wear tests were performed on aluminum, copper and stainless steel instrumented central tubes against mild steel baffle. For each tube material the tests were performed for three different test durations i.e. 60 minutes, 120 minutes and 180 minutes at a cross flow velocity of 0.55 m/s. It was observed that vibrational amplitude of the flexible test tube is affected by its weight. A scanning electron microscope was used to analyze and measure the sizes of wear scar. The results indicated that wear loss in case of aluminum tube is the highest while that in case of stainless steel tube is the lowest.

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Section: Fretting Wear Analysis Of Different Tube Materials Used In Hmentioning

confidence: 99%

Fretting Wear Analysis of Different Tube Materials Used in Heat Exchanger Tube Bundle

Abbas¹,

Khushnood²,

Nizam³

et al. 2017

Adv. Sci. Technol. Res. J.

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“…Fretting wear between the tube and anti-vibration supporter can be induced by the flow-induced vibration [ 11 ]. In the field of fretting in SG tubing, materials such as alloy 690 and 600 and numerous factors like normal force [ 12 , 13 , 14 ], displacement amplitude [ 14 , 15 , 16 , 17 ], cycle number [ 18 , 19 ], vibration frequency [ 16 ], environment [ 20 , 21 ], material [ 22 , 23 , 24 , 25 , 26 ], water chemistry [ 11 , 27 , 28 , 29 , 30 , 31 ], and temperature [ 32 ] have been investigated. However, the fretting behavior and wear mechanism in a reducing environment, such as nitrogen, has not been fully understood.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Displacement Amplitude on Fretting Wear Behavior and Damage Mechanism of Alloy 690 in Different Gaseous Atmospheres

et al. 2021

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The effect of displacement amplitude on fretting wear behavior and damage mechanisms of alloy 690 in air and nitrogen atmospheres was investigated in detail. The results showed that in air, the friction coefficient gradually increased with the increase in displacement amplitude which conformed to the universal law. In nitrogen, however, it had the highest point at the displacement amplitude of 60 μm due to very strong adhesion. Whether in air or nitrogen, the wear volume gradually increased with the increase in displacement amplitude. The wear volume in air was larger than that in nitrogen except at 30 μm. At 30 μm, the wear volume in air was slightly smaller. With an increase in displacement amplitude, a transformation of fretting running status between partial slip, mixed stick-slip, and final gross slip occurred along with the change of Ft-D curves from linear, to elliptic, to, finally, parallelogrammical. Correspondingly, the fretting regime changed from a partial slip regime to a mixed regime to a gross slip regime. With the increase in displacement amplitude, the transition from partial slip to gross slip in nitrogen was delayed as compared with in air due to the strong adhesion actuated by low oxygen content in a reducing environment. Whether in air or nitrogen, the competitive relation between fretting-induced fatigue and fretting-induced wear was prominent. The cracking velocity was more rapid than the wear. Fretting-induced fatigue dominated at 30 μm in air but at 30–60 μm in nitrogen. Fretting-induced wear won the competition at 45–90 μm in air but at 75–90 μm in nitrogen.

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“…[5][6][7] Thus, fretting wear in steam generator tubes has been extensively investigated experimentally. [8][9][10][11] Previous studies indicated that frequency, 12 displacement, 12,13 load, 14 temperature, and environment [15][16][17][18][19][20] are significant variables on the tangential fretting wear for Inconel 690 alloy. Studies on fretting damage and its mechanism under alternating load conditions are limited.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the fretting wear behavior of Inconel 690 alloy under alternating load conditions

Zhang

Cai

Peng

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part J:

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This study investigated the fretting wear behavior of the nuclear power material Inconel 690 alloy. An improved PLINT high-temperature fretting tester was used on an Inconel 690 tube against a 1Cr13 cylinder at different temperatures (25 C and 300 C) under alternating load conditions. The fretting-wear mechanism and the kinetic characteristic of Inconel 690 alloy were analyzed. Results showed that the fretting running behavior was closely related to the normal excitation frequency. In parallelogram shaped F t-D curves, the friction fluctuates periodically, and accordingly the fretting was running in the slip regime. The steady-state friction force at room temperature in air was higher than that at 300 C. Moreover, the damage behavior of the fretting for Inconel 690 alloy strongly depended on the normal load, displacement amplitude, temperature, and excitation frequency in atmospheric environment. A superposition effect of fretting wear behavior was discovered because of the combined effect of alternating normal and tangential forces; thus, delamination became more significant. Abrasive wear and delamination were the major mechanisms in Inconel 690 alloy at room temperature in ambient air. The dominant mechanisms at 300 C were the abrasive wear, oxidation wear, and delamination.

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Friction and wear of Inconel 690 and Inconel 600 for steam generator tube in room temperature water

Cited by 63 publications

References 5 publications

Fretting Wear Analysis of Different Tube Materials Used in Heat Exchanger Tube Bundle

Fretting Wear Analysis of Different Tube Materials Used in Heat Exchanger Tube Bundle

The Effect of Displacement Amplitude on Fretting Wear Behavior and Damage Mechanism of Alloy 690 in Different Gaseous Atmospheres

Experimental study of the fretting wear behavior of Inconel 690 alloy under alternating load conditions

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