Influence of plasma molybdenizing and shot-peening on fretting damage behavior of titanium alloy

Tang, Changbin; Liu, Daoxin; Tang, Bin; Zhang, Xiaohua; Qin, Lin; Liu, Chengsong

doi:10.1016/j.apsusc.2016.08.146

Cited by 45 publications

(14 citation statements)

References 27 publications

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“…A ball-on-flat geometric configuration was used to evaluate the fretting wear (FW) performance of the Cu/Ni multilayer films. All FW tests were carried out on a SDS100 electro-hydraulic servo machine, which is fully computer-controlled [ 11 ]. The flat with films was fixed and the Ti-811 ball reciprocated.…”

Section: Methodsmentioning

confidence: 99%

“…For example, surface-hardening treatments can effectively improve the wear resistance of materials, but (in many cases) this increased surface hardness is realized at the expense of the fracture toughness and, hence, the fatigue properties [ 10 ]. Our research has shown that plasma nitriding is detrimental to the FFR of Ti-6Al-4V alloy, although this surface treatment results in improved hardness and wear resistance of the material [ 11 ]. Achieving a suitable combination of hardness, wear resistance, fatigue resistance, toughness, and low-friction is essential for many applications, and this combination may be realized via multilayered films.…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Modulation Ratio of Cu/Ni Multilayer Films on the Fretting Damage Behaviour of Ti-811 Titanium Alloy

Zhang

Liu

et al. 2017

Materials

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To improve the fretting damage (fretting wear and fretting fatigue) resistance of Ti-811 titanium alloy, three Cu/Ni multilayer films with the same modulation period thickness (200 nm) and different modulation ratios (3:1, 1:1, 1:3) were deposited on the surface of the alloy via ion-assisted magnetron sputtering deposition (IAD). The bonding strength, micro-hardness, and toughness of the films were evaluated, and the effect of the modulation ratio on the room-temperature fretting wear (FW) and fretting fatigue (FF) resistance of the alloy was determined. The results indicated that the IAD technique can be successfully used to prepare Cu/Ni multilayer films, with high bonding strength, low-friction, and good toughness, which yield improved room-temperature FF and FW resistance of the alloy. For the same modulation period (200 nm), the micro-hardness, friction, and FW resistance of the coated alloy increased, decreased, and improved, respectively, with increasing modulation ratio of the Ni-to-Cu layer thickness. However, the FF resistance of the coated alloy increased non-monotonically with the increasing modulation ratio. Among the three Cu/Ni multilayer films, those with a modulation ratio of 1:1 can confer the highest FF resistance to the Ti-811 alloy, owing mainly to their unique combination of good toughness, high strength, and low-friction.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Effect of Modulation Ratio of Cu/Ni Multilayer Films on the Fretting Damage Behaviour of Ti-811 Titanium Alloy

Zhang

Liu

et al. 2017

Materials

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“…They are widely used for manufacturing components of various technical equipment which work under fretting-initiated damage conditions. Hence, an improvement in the fretting damage resistance of titanium alloys is very important problem [1,2]. As fretting damage of titanium alloys is surface dependent, surface modification treatment is a promising approach for improving fretting fatigue resistance of the alloys.…”

Section: Richment Of the Alloy Surface By Nitrogen: The Bands At 1634mentioning

confidence: 99%

Surface Properties of Titanium Alloy Vt 6 After Plasma Electrolytic Treatment

Parfenyuk¹,

Tesakova²,

Lutovac

et al. 2018

IVUZKKT

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Surface modification of titanium alloy VT 6 in aqueous solution containing 5 wt% of ammonium hydrate and 10 wt% of ammonium chloride in a temperature range of 650- 900 ºC by plasma electrolitic treatment was carried out. Characterization of surface layers of the alloy after plasma electrolytic treatment was done by Fourier Transform Infrared spectroscopy (FTIR) and powder X-ray diffraction (XRD). The FTIR spectra were recorded on a spectrometer BrukerVertex80 at room temperature in the range of 7500-350 cm-1. The spectra show the presence of rutile phase on the alloy surface after the plasma electrolytic treatment in the electrolyte solution of the indicated composition. The intensive bands at 654-643 cm-1, the weak bands near 560 cm-1 and the bands at 425-416 cm-1 can be assigned to rutile. The bands at 466-462 cm-1 are related to Ti-O-Ti stretching vibrations. With increasing temperature the relative intensity of the bands assigned to rutile increase. The plasma electrolytic treatment leads to appearence of the bands testifying enrichment of the alloy surface by nitrogen: the bands at 1634-1622 см-1 can be assigned to asymmetric bending of NH4+; the bands about 1539 cm-1 are related to N-H bending or symmetric bending of NH4+. The bands about 1428-1426 cm-1 can be also assigned to NH4+ bending vibrations. The plasma electrolytic treatment in the temperature range of 650-750 ºС results in appearance of the bands at 1069-1064 см-1. According to literature data, the bands can be assigned to vibrations of Ti-O-N. X-ray diffraction analysis allowed to ascertain crystal structure, phase identiﬁcation of the titanium alloy VT 6 after its plasma electrolytic treatment. The measurements were performed using a Bruker D8 Advance diffractometer with Mo Kα radiation (λ=0.07107 nm). Analysis of XRD patterns showed that titanium oxide in the samples is present as hongquiite phase (γ- monoclinic singony) and magnesium phase (hexagonal singony). Besides the peaks of TiO, the peaks which are characteristic for hamrabevit TiC in halite phase (cubic syngony) and Ti2O3 in corundum phase (trigonal syngony) were observed.Forcitation:Parfenyuk V.I., Tesakova M.V., Lutovac M., Kusmanov S.A., Lutovac B., Belkin P.N., Parfenyuk E.V. Surface properties of titanium alloy VT 6 after plasma electrolytic treatment. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2018. V. 61. N 3. P. 58-63

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“…Surface mechanical attrition treatment, ultrasonic shot peening, laser shock peening, ultrasonic surface rolling processing, ultrasonic cold forging technology, et al are feasible mechanical processes. These technologies have been shown to improve the mechanical properties without changing the chemical composition of materials, such as fatigue performance [2][3][4], fretting properties [5], corrosion behavior [6,7], tensile strength [8], wear resistance [9], and so on. In the above references, both the grain refining and the high compressive residual stress are considered the reasons for the improvement of fracture toughness.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Fracture Characteristics of Ti6Al4V Subjected to Ultrasonic Nanocrystal Surface Modification

Cao

et al. 2018

Metals

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Abstract:The influence of ultrasonic nanocrystal surface modification (UNSM) on the fatigue fracture characteristics of Ti6Al4V was investigated. Two groups of specimens were separated due to different heat treatment conditions. Group one was stress-relief annealed at 650 • C, and group two was then treated with solid solution-aging. UNSM with the conditions of a static load of 25 N, vibration amplitude of 30 µm, and 36,000 strikes per unit produced about 40 µm surface severe plastic deformation (SPD) layers on both groups of specimens. UNSM improved the microhardness and the compressive residual stress. UNSM also helped achieve a neat surface, almost without changing the surface roughness. The fatigue strengths of these two groups were improved by 7% and 11.7%, respectively. After UNSM, fatigue cracks mainly initiated from the surface of the specimen before the fatigue life of 10 6 cycles, while they appeared at the internal compress deformed α-phase at the zone between the SPD layer and the core after the fatigue life of 106 cycles. The cracks usually extended along the deformation overflow bands and the process traces on the surface. Through the change of micro-dimples in the fatigue final rupture region, nanocrystals were achieved in the SPD layer. The crystal slip and the surface remodeling together influenced the energy field of crack evolution.

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Influence of plasma molybdenizing and shot-peening on fretting damage behavior of titanium alloy

Cited by 45 publications

References 27 publications

The Effect of Modulation Ratio of Cu/Ni Multilayer Films on the Fretting Damage Behaviour of Ti-811 Titanium Alloy

The Effect of Modulation Ratio of Cu/Ni Multilayer Films on the Fretting Damage Behaviour of Ti-811 Titanium Alloy

Surface Properties of Titanium Alloy Vt 6 After Plasma Electrolytic Treatment

Fatigue Fracture Characteristics of Ti6Al4V Subjected to Ultrasonic Nanocrystal Surface Modification

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