Effects of sliding amplitude and normal load on the fretting wear behavior of alloy 690 tube exposed to high temperature water

Guo, Xianglong; Lai, Ping; Tang, Lichen; Wang, Jiamei; Zhang, Lefu

doi:10.1016/j.triboint.2017.07.001

Cited by 78 publications

(21 citation statements)

References 34 publications

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“…The wear rates at different temperature are 2.71 × 10 −16 , 6.47 × 10 −16 and 2.11 × 10 −16 Pa −1 , respectively, which are calculated using the same method in Ref. [14]. It is obvious that the sample at 100 °C has the highest wear rate while the sample at 200 °C has the lowest one.…”

Section: Profile Lines Wear Volumes and Maximum Wear Depths Of The Wmentioning

confidence: 99%

“…Plenty of researchers have focused on the fretting wear behavior of Alloy 690TT alloy between various materials [6][7][8][9][10]. It is doubtless that mechanical parameters, including displacement amplitude [11,12], normal force [13,14] and frequency [15,16] are crucial factors affecting the fretting wear process.…”

Section: Introductionmentioning

confidence: 99%

“…However, up to now, most of the researches were carried out in the water lower than 100 °C, at low frequency or with fairly large displacement, which may alter the result from the ones in actual operating conditions in NPPs [6,9]. Some researches performed in hightemperature high-pressure (HTHP) water are reported [14,24,25]; however, the test term during the fretting corrosion tests is a little short. The research on long-term (≥ 10 6 fretting cycles) fretting corrosion characteristics of Alloy 690TT alloy in HTHP water is still devoid.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Temperature on Fretting Corrosion Between Alloy 690TT and 405 Stainless Steel in Pure Water

Xingchen

Ming

Zhang

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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In pressurized water reactor, fretting corrosion has become the main reason for the failure of 690TT heat exchanger tubes. The effect of temperature on the fretting corrosion behavior between 690TT tube and 405 stainless steel (SS) bar has been studied during 10 6 fretting cycles. The overall average coefficient of friction (COF) values descends with an increase in test temperature, while the width of worn scar becomes wider. The severest fretting corrosion happens when the test temperature is at 100 °C. The wear mechanism differs at different test temperatures, from adhesive wear at room temperature to abrasive wear and delamination at 100 °C, to abrasive wear at 200 °C. Deformation slips, high residual strain concentration, and micro-cracks are found which are disadvantageous for the further service performance of the tubes.

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Section: Profile Lines Wear Volumes and Maximum Wear Depths Of The Wmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Temperature on Fretting Corrosion Between Alloy 690TT and 405 Stainless Steel in Pure Water

Xingchen

Ming

Zhang

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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“…The 690 alloy was widely used in heat transfer tubes in the second generation of pressurized water reactors due to its excellent intergranular corrosion and intergranular stress corrosion cracking properties [ 7 ]. In recent years, fretting wear research on Inconel 690 alloys has covered contact forms [ 8 , 9 ], environment and temperatures [ 10 , 11 , 12 ], loads, and displacements [ 13 , 14 , 15 , 16 ]. In addition, a number of studies have focused on the effects of grain size and hardness [ 17 ], carbide size, and spacing [ 18 ] on the fretting wear properties of Inconel 690.…”

Section: Introductionmentioning

confidence: 99%

Effects of Temperature on the Fretting Wear Behavior of 2.25Cr-1Mo Tubes against Gr5C12 Rods

et al. 2020

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In the heat exchangers of sodium-cooled fast reactors, sodium flow can cause the tubes to vibrate, resulting in fretting wear damage due to the contact between the tubes (2.25Cr-1Mo steel) and their support plate (Gr5C12 alloy). In this work, the effects of temperature on the fretting wear behavior of a 2.25Cr-1Mo heat transfer tube on a Gr5C12 alloy rod were studied. The results showed that the coefficient of friction (COF) and wear volume increased first and then decreased with the increase in temperature. Moreover, 2.25Cr-1Mo showed great wear performance at high temperatures than at room temperature and 80 °C, because of the antifriction nature of the oxidative layer and the high hardness of the tribological transformed structure layer. As the temperature increased, material transfer and plastic deformation became increasingly obvious, but average wear depth decreased. This provides data support for the practical engineering application of 2.25Cr-1Mo steel at elevated temperatures. Wear mechanisms were found to depend modestly on temperature and largely on normal load. As temperature increases, the wear mechanism gradually changes from abrasive wear to adhesive wear.

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“…The other is the chemical degradation which can be accelerated by fretting. In recent years, many investigations on fretting corrosion of Inconel 690TT have been carried out with the fretting parameters including displacement amplitude [ 6 , 7 ], normal force [ 6 , 7 , 8 ], cycle number [ 9 , 10 ], temperature [ 3 , 11 , 12 , 13 ], and microstructure evolution [ 14 , 15 , 16 , 17 , 18 ]. However, the electrochemical effects are ignored under such a corrosive environment, especially the evolution of passive film.…”

Section: Introductionmentioning

confidence: 99%

Effects of Normal Force on the Tribocorrosion Behavior of a Nickel-Based Superalloy in Alkaline Solution: An Electrochemical Study

Xin

Jiang

2020

Materials

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The tribocorrosion behavior of Inconel 690TT in NaOH (pH = 9.8) solution at different normal forces was investigated by an electrochemical method. The results indicated that normal force had a great effect on the tribocorrosion behavior and mechanism. When normal force increased from 15 to 30 N, fretting regime was in gross slip regime (GSR), and wear volume gradually increased. When normal force further increased to 45 N, wear volume significantly decreased due to the fretting regime changing from GSR to partial slip regime (PSR). When fretting ran in GSR, the corrosion resistance decreased with the negative shift of open circuit potential (OCP). However, when the fretting regime changed to PSR, the corrosion reaction significantly decreased due to the adhesive wear. Fretting wear broke the passive film at the contacting surface, which caused the worn surface to be more active and prone to corrosion. However, the broken passive film was quickly repaired in subsequent oxidation. The break and repair of passive film strongly depended on normal force. In GSR, the increase in normal force aggravated the break of passive film. In PSR, the passive film was not easy to break with a further increase of normal force.

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Effects of sliding amplitude and normal load on the fretting wear behavior of alloy 690 tube exposed to high temperature water

Cited by 78 publications

References 34 publications

Effects of Temperature on Fretting Corrosion Between Alloy 690TT and 405 Stainless Steel in Pure Water

Effects of Temperature on Fretting Corrosion Between Alloy 690TT and 405 Stainless Steel in Pure Water

Effects of Temperature on the Fretting Wear Behavior of 2.25Cr-1Mo Tubes against Gr5C12 Rods

Effects of Normal Force on the Tribocorrosion Behavior of a Nickel-Based Superalloy in Alkaline Solution: An Electrochemical Study

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