Fretting wear behaviors and mechanism of a high Nb–TiAl alloy with full lamellar microstructure at ambient temperature

Song, Qiang; Liu, Lihua; Wen, Daosheng; Wang, Yanjun; Wang, Gaoqi; Yin, Ziqiang; Wang, Shouren

doi:10.1007/s10853-022-07605-x

Cited by 6 publications

(2 citation statements)

References 30 publications

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“…A certain degree of elastic recovery of the material occurs due to the release of residual stresses after the nanoindentation process. Song et al [27] simulated the abrasive wear process of γ-phase RT oriented layers of different layer thicknesses of TiAl alloys. The results showed that the presence of RT layered interfaces led to the accumulation of dislocations, local stress concentration, and grain refinement to some extent, which improved the material properties and enhanced the wear resistance of the alloy.…”

Section: Introductionmentioning

confidence: 99%

Compression and fretting wear studies of γ/α ₂ duplex TiAl alloys at the nanoscale

Zheng,

Han,

et al. 2024

Phys. Scr.

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The nanofabrication behavior of γ/α2 duplex TiAl alloys by downward pressure followed by reciprocating friction with investigating diamond grinding balls via MD simulation. It was found that a certain number of dislocations in the workpiece was low and the resilience was high during the initial pressing stage, and the number of dislocations increased, the resilience decreased and the plastic deformation capacity was enhanced under continuous pressing. The α2 phase did not deform significantly during the compression process. The presence of the α2 phase increases the overall hardness of the material, and elastic-plastic deformation occurs mainly where the γ phase is present， The endowment layer dislocations generated during the intrinsic stacking fault rebound via the phase boundary to form V-shaped dislocations. During the reciprocating friction of the workpiece, forward friction produces Vshaped dislocations, and reverse friction makes the dislocations disappear. This process results in the forward average friction force being greater than the reverse average friction force. γ/α2 phase boundary has an impeding effect on the downward proliferation of defects, and the existence of the phase boundary makes the temperature transfer appear discontinuous. During friction, the certain number of vacancy atoms in the γ-phase increases and the transition between FCC and HCP occurs.

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Section: Introductionmentioning

confidence: 99%

Compression and fretting wear studies of γ/α ₂ duplex TiAl alloys at the nanoscale

Zheng,

Han,

et al. 2024

Phys. Scr.

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“…When two contact bodies are subjected to external compression and serve in a vibration environment, the fretting wear phenomenon usually occurs. There are many influence factors of fretting wear, mainly including material properties, contact forms, displacement amplitude, normal force, frequency, and external environment [ 17 , 18 ]. Fretting wear is a process involving multiple interrelated behaviors, including plastic deformation, crack formation and propagation, and debris evolution.…”

Section: Introductionmentioning

confidence: 99%

Fretting Wear Behaviors of Silicone Rubber under Dry Friction and Different Lubrication Conditions

Liu,

Su,

Zhang

et al. 2024

Materials

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The fretting wear behaviors of silicone rubber under dry friction and different lubrication conditions are studied experimentally. Water, engine oil, dimethyl silicone oil (DSO), and dimethyl silicone oil doped with graphene oxide (DSO/GO) are selected as lubricants. Under the liquid lubrication conditions, the silicone rubber samples are always immersed in the same volume of lubricant. The contact model of a 440C steel ball and silicone rubber sample is the sphere-on-flat contact. The reciprocating fretting wear experiments are carried out using the reciprocating friction wear tester. A scanning electron microscope and three-dimensional white-light interference profilometer are used to detect the surface wear morphology and obtain the wear volume, respectively. The influences of normal force, lubrication condition, and displacement amplitude on fretting wear behavior are discussed. The fretting wear performances of silicone rubber under different fretting states and lubrication conditions are compared. The results show that for a small normal force, silicone rubber has the best wear resistance under DSO/GO lubrication. While for a large normal force, silicone rubber has the best wear resistance under engine oil lubrication.

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The fretting tribocorrosion properties of CrAlTiN coating on the Inconel 690 alloy

Kang

Qiu

et al. 2023

J Mater Sci

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Fretting wear behaviors and mechanism of a high Nb–TiAl alloy with full lamellar microstructure at ambient temperature

Cited by 6 publications

References 30 publications

Compression and fretting wear studies of γ/α ₂ duplex TiAl alloys at the nanoscale

Compression and fretting wear studies of γ/α ₂ duplex TiAl alloys at the nanoscale

Fretting Wear Behaviors of Silicone Rubber under Dry Friction and Different Lubrication Conditions

The fretting tribocorrosion properties of CrAlTiN coating on the Inconel 690 alloy

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Fretting wear behaviors and mechanism of a high Nb–TiAl alloy with full lamellar microstructure at ambient temperature

Cited by 6 publications

References 30 publications

Compression and fretting wear studies of γ/α 2 duplex TiAl alloys at the nanoscale

Compression and fretting wear studies of γ/α 2 duplex TiAl alloys at the nanoscale

Fretting Wear Behaviors of Silicone Rubber under Dry Friction and Different Lubrication Conditions

The fretting tribocorrosion properties of CrAlTiN coating on the Inconel 690 alloy

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Product

Resources

About

Compression and fretting wear studies of γ/α ₂ duplex TiAl alloys at the nanoscale

Compression and fretting wear studies of γ/α ₂ duplex TiAl alloys at the nanoscale