Theoretical and experimental investigation of thermal and oxidation behaviours of a high speed steel work roll during hot rolling

Deng, Guanyu; Zhu, Hongtao; Su, Lihong; Reid, Mark; Zhang, L C; Wei, Peitang; Zhao, Xingfeng; Wang, Hui; Zhang, Jiangshan; Li, Jintao; Ta, Thi D.; Zhu, Qiang; Kong, Charlie; Wu, Qiong

doi:10.1016/j.ijmecsci.2017.08.024

Cited by 40 publications

(38 citation statements)

References 51 publications

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“…During the contact with the product, the MFCs surface often heats up from room temperature to 500-600 • C (due to conduction, deformation and friction) and is subsequently cooled down by a water spray (Colás et al, 1999). The cyclic fatigue due to thermal and mechanical loads promotes compressive stresses during heating, and tensile stresses upon cooling, resulting in degradation of the MFC surface (Fedorciuc-Onisa and Farrugia, 2008; Garza-Montes- de-Oca et al, 2011;Deng et al, 2017). In addition, MFCs also suffer abrasive and oxidative wear.…”

Section: Metal Formingmentioning

confidence: 99%

An Overview: Laser-Based Additive Manufacturing for High Temperature Tribology

et al. 2019

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Laser-based additive manufacturing (LBAM) is a versatile manufacturing technique, extensively adopted to fabricate metallic components of enhanced properties. The current review paper provides a critical assessment of the fabricated metallic coatings and parts through LBAM-processes [e.g., laser metal deposition (LMD) and selective laser melting (SLM)] for high temperature tribological applications. A succinct comparison of LBAM-fabrication and conventional manufacturing is given. The review provides an insight into the sophisticated application-driven material design for high temperature tribological contacts. The review highlights the major mechanisms behind the improvement in the tribology of the laser-deposits; properties evolving as a consequence of the microstructure, lamellar solid lubricants, sulfides, soft metals, lubricious oxides, and self-lubricating surfaces.

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Section: Metal Formingmentioning

confidence: 99%

An Overview: Laser-Based Additive Manufacturing for High Temperature Tribology

et al. 2019

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“…High manufacturing costs make any attempts to increase the operating time of the rolls and improve the surface quality of the rolled products enticing [2][3][4]. The oxidation process of rolls has a strong influence on the complex degradation process of the roll surface layer [4][5][6][7][8][9][10][11][12][13]. The degradation of the roller surface is related to the microstructure, the temperature and the thermal stresses acting on it.…”

Section: Introductionmentioning

confidence: 99%

“…It is generally very complex, as temperature, time, environmental conditions and microstructure are intertwined [3,. The oxidation behavior of roller material at high temperatures was investigated by oxidation studies [4,15,22,23,28,[34][35][36][37][38], tribological tests [3,[9][10][11]14,16,25,26,33,35,[39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57] and thermal fatigue tests [5,6,12,[29][30][31]. The tribological tests were performed with disc-on-disc tests [3,[9][10][11]…”

Section: Introductionmentioning

confidence: 99%

“…In addition, different oxidation rates were observed for the different carbide types in the matrix, which is the basis for the formation of relatively small oxidation tongues. In the studies [5,6,12,[29][30][31] thermal fatigue tests were used to demonstrate that oxidation accelerates crack growth and other degradation processes (i.e., chipping and spalling). However, the oxidation penetration was not investigated.…”

Section: Introductionmentioning

confidence: 99%

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Mechanisms of Oxidation Degradation of Cr12 Roller Steel during Thermal Fatigue Tests

Bombač

Gintalas

Kugler

et al. 2020

Metals

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Degradation by the penetration of oxidation into the Cr12 roller steel is evaluated during thermal fatigue tests in the laboratory in the temperature range of 500–700 °C. A qualitative assessment is carried out with regard to the thermal load, the microstructure and the test temperature. The results show that the specific properties of the microstructure with respect to thermal stress and temperature have a significant influence on the oxidation behavior as well as on the crack propagation mode and crack growth. The conditions that lead to an increase in the oxidation rate and thus to premature and sudden local chipping of the roll surface layer are analyzed and explained.

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“…It is still very challenging to slow the timescale of MD down to realistic vales, although many efforts have been devoted to approaching such a target, such as accelerated molecular dynamics [13] and multiscale simulations [14][15][16]. The finite element method (FEM), based on the framework of continuum mechanics, has also been widely 2 of 14 used to study the elastic and elastic-plastic contact between rough surfaces and deformations [17][18][19][20]. However, capturing the accurate information at the atomic scale is difficult by using FEM due to incorrect constitutive law.…”

Section: Introductionmentioning

confidence: 99%

Concurrent Multiscale Simulations of Rough Lubricated Contact of Aluminum Single Crystal

Zhang

Wang

2020

Metals

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In this paper, a concurrent multiscale simulation strategy coupling atomistic and continuum models was proposed to investigate the three-dimensional contact responses of aluminum single crystal under both dry and lubricated conditions. The Hertz contact is performed by using both the multiscale and full molecular dynamics (MD) simulations for validation. From the contact area, kinetic energy and stress continuity aspects, the multiscale model shows good accuracy. It can also save at least five times the computational time compared with the full MD simulations for the same domain size. Furthermore, the results of lubricated contact show that the lubricant molecules could effectively cover the contact surfaces; thereby separating the aluminum surfaces and bearing the support loads. Moreover, the surface topography could be protected by the thin film formed by the lubricant molecules. It has been found that the contact area decreases obviously with increasing the magnitude of load under both dry and lubricated contacts. Besides, a decrease in contact area is also seen when the number of lubricant molecules increases. The present study has confirmed that the dimension of lubricated contacts could be greatly expanded during the simulation using the proposed multiscale method without sacrificing too much computational time and accuracy.

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Theoretical and experimental investigation of thermal and oxidation behaviours of a high speed steel work roll during hot rolling

Abstract: Theoretical and experimental investigation of thermal and oxidation behaviours Theoretical and experimental investigation of thermal and oxidation behaviours of a high speed steel work roll during hot rolling of a high speed steel work roll during hot rolling

Cited by 40 publications

References 51 publications

An Overview: Laser-Based Additive Manufacturing for High Temperature Tribology

An Overview: Laser-Based Additive Manufacturing for High Temperature Tribology

Mechanisms of Oxidation Degradation of Cr12 Roller Steel during Thermal Fatigue Tests

Concurrent Multiscale Simulations of Rough Lubricated Contact of Aluminum Single Crystal

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