A Novel Nano-TiO&lt;sub&gt;2&lt;/sub&gt; Additive Oil-in-Water Lubricant for Hot Steel Rolling

Xia, Wen Zhen; Zhao, Jing; Wu, Hui; Jiao, Sihai; Zhao, Xian Ming; Zhang, Xiao Ming; Jiang, Zhengyi

doi:10.4028/www.scientific.net/msf.861.201

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…They include two-dimensional materials ( e.g., graphene, hexagonal boron nitride (h-BN), MoS 2 , WS 2 ...), − nanoparticles ( e.g. , Cu, Ni, TiO 2 , ZrO 2 , SiO 2 , CaCO 3 ...), − organic oiliness friction modifiers and wear-resistant additives for engine conditions, , and inorganic polymer glasses (borate, silicate, phosphate, borosilicate...) for elevated temperature conditions. − Under sliding conditions at mixed and particularly boundary regimes, these solid lubricants experience thermally induced chemical reactions, adsorption, and diffusion onto the sliding surfaces. , In addition, the stress-shearing not only induces flash temperature but also provides the intermixing effect that organizes and constructs the formation of complex hierarchical layers. − These hierarchical layers, well known as “tribofilm”, have a number of particular properties that either separate the direct contact between the asperities or deliver the low shearing capabilities.…”

Section: Introductionmentioning

confidence: 99%

Smart-Responsive Colloidal Capsules as an Emerging Tool to Design a Multifunctional Lubricant Additive

Pham

Sencadas

Lei

et al. 2021

ACS Appl. Mater. Interfaces

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The microencapsulation technique has been proven as a powerful and flexible tool to design and develop a multifunctional additive for various applications. The significant characteristics of this technique center around the ability to control the release of the core active ingredients by tuning the porosity and the permeability of the shell. However, this original concept has faced a major roadblock in lubricant research since it causes a major breakage of the microcapsules (∼70%) under severe stressed-shearing conditions. The shell fragments generated from such unwanted events significantly influence the friction and wear performances of the counterpart, thus limiting the ongoing research of the microencapsulation technique in tribology. To solve such technical bottlenecks, we develop a new strategy of utilizing the microencapsulation technique which focuses on the smart responsiveness of the shell with the base lubricant and the synergy between the incorporated materials. In this study, the smart-responsive colloidal capsule has been developed based on our proposed concept that demonstrates outstanding performances in improving the lubricity of the conventional melt lubricant (by ∼70%) under hot metal working conditions. An unprecedented oxidation–reduction (by ∼93%) and the first instance of ultralow friction (0.07) at elevated temperatures (880 °C) have been initially achieved. This work opens a new avenue of customizing a multifunctional additive package by utilizing the smart colloidal capsules in lubrication science.

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Section: Introductionmentioning

confidence: 99%

Smart-Responsive Colloidal Capsules as an Emerging Tool to Design a Multifunctional Lubricant Additive

Pham

Sencadas

Lei

et al. 2021

ACS Appl. Mater. Interfaces

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“…Recent studies have confirmed that nanoparticles have potential applications in the steel rolling process [ 10 , 11 ], machine cutting process [ 12 , 13 , 14 ], micro-drilling process [ 15 ], etc. Previous studies reported that nano-TiO 2 has good friction-reducing, anti-wear, and cooling properties, so it can reduce the coefficient of friction and rolling force during the hot rolling process [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

The Role of Nano-TiO2 Lubricating Fluid on the Hot Rolled Surface and Metallographic Structure of SS41 Steel

Meng

Sun

et al. 2018

Nanomaterials

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In this paper, nano-TiO2lubricating fluid was chosen as an advanced rolling lubricant to investigate its effect on the hot rolled surface and metallographic structure of SS41 steel strips. The tribological performances of nano-TiO2 lubricating fluid were measured by a four-ball tribotester. The hot rolling experiments under different lubrication conditions were carried out by a four-high rolling mill. The surface morphology, oxide scales and metallographic structure after hot rolling were observed using a confocal laser scanning microscope and scanning electron microscope (SEM), respectively. The composition of surface attachments was analyzed with X-ray photoelectron spectroscopy (XPS). The results indicate that the nano-TiO2 lubricating fluid has a better tribological performance. The surface defects on the hot rolled surface could be decreased. The phase composition of the surface still appears as a mixture of ferrite and pearlite. The surface of steel strips is not micro-alloyed with titanium as predicted. Additionally, the grain size of rolled steel strips which were lubricated with the nano-TiO2lubricating fluid decreased by nearly 50%, compared with traditional lubricating fluid. Furthermore, it was found that the thickness of the oxide layers on the surface reduced, whilst the Rockwell hardness of the oxide layers was enhanced as nano-TiO2 lubricating fluid was applied.

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Research progress of nanolubrication for rolling process

Ma,

Bai

et al. 2023

Int J Adv Manuf Technol

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A Novel Nano-TiO<sub>2</sub> Additive Oil-in-Water Lubricant for Hot Steel Rolling

Cited by 6 publications

References 16 publications

Smart-Responsive Colloidal Capsules as an Emerging Tool to Design a Multifunctional Lubricant Additive

Smart-Responsive Colloidal Capsules as an Emerging Tool to Design a Multifunctional Lubricant Additive

The Role of Nano-TiO2 Lubricating Fluid on the Hot Rolled Surface and Metallographic Structure of SS41 Steel

Research progress of nanolubrication for rolling process

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