The influence of rolling mill process parameters on roll thermal fatigue

Weidlich, Felipe; Braga, Ana Paola Villalva; Lima, Luiz Gustavo Del Bianchi da Silva; Júnior, Mário Boccalini; Souza, R.M.

doi:10.1007/s00170-019-03293-1

Cited by 13 publications

(5 citation statements)

References 16 publications

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“…Other topics included the tribological behaviour of plasma-sprayed coatings [255] and water lubrication of ceramic materials [256]. For the tribological behaviour of rolling mill rolls [257], studies were combined with different aspects of forging to provide a broader view of hot-forming tools. These activities were part of a project of IPT and LFS, funded by BNDES and Gerdau (currently Gerdau-Summit).…”

Section: Brazilian Tribology: Status Quomentioning

confidence: 99%

Brazilian Tribology: origin, status quo and future perspectives

de Mello,

Costa

2023

Surf. Topogr.: Metrol. Prop.

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This first regional issue published in STMP highlights the potential and importance of the research carried out in Latin America regarding surface engineering and tribology. In order to celebrate this important initiative, a complete historical account of Brazilian tribology is presented for the first time. It initiates with the first steps of Brazilian tribology in the 1980s, followed by the evolution and expansion of tribology research both in academic centres and industry. Focus is given to two outstanding achievements of Brazilian tribology: the fully flexible engines that run at any proportion of ethanol and gasoline and a fully innovative, completely oil-less family of hermetic compressors. The status-quo of the current research groups on tribology is described. Finally, the future trends envisaged by the Brazilian tribology community are presented.

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Section: Brazilian Tribology: Status Quomentioning

confidence: 99%

Brazilian Tribology: origin, status quo and future perspectives

de Mello,

Costa

2023

Surf. Topogr.: Metrol. Prop.

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“…Some studies have been conducted to investigate the relationship between the thermo-mechanical fatigue behavior of cylinders and their wear [9], [10]. Gao et al studied the temperature variations of the rolling cylinders in order to determine the thermal field distribution inside them, based on the finite element analysis [11].…”

Section: Introductionmentioning

confidence: 99%

Influence of thermal stresses on the phenomenon of thermal fatigue of rolling cylinders

Pinca‐Bretotean

Josan

Sharma³

2023

J. Phys.: Conf. Ser.

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Hot rolling cylinders are the most important machine parts in plastic deformation equipment. They are taken out of operation due to breakage caused by the predominant action of thermal stresses which cause accidental breakdowns of rolling mills. In view of these aspects, the question arose is to knowing the nature of these stresses, as well as their evaluation. This paper will experimentally determine the mechanical and thermal stresses that arise in the process of plastic deformation of hot rolling cylinders. The purpose of this paper is to evaluate the thermal stresses and compare them with the mechanical ones, as well as to highlight their influence on the thermal fatigue phenomenon. The study shows that the stresses in rolling cylinders are cyclical and occur at each rotation of the cylinders. The thermal stresses are mainly the result of the action of symmetric and asymmetric temperature fields. The overall action of thermal stresses presents an aspect of destruction of the surface layer that characterizes the effect of thermal fatigue phenomenon. The separation of the temperature fields that produce thermal stresses in symmetric and asymmetric and their experimental confirmation represents the originality of the research presented in this paper.

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“…The microstructure model containing micro-inclusions was established by Voronoi method, and the distribution and motion of micro-stress under multi-field coupling were solved to predict the rolling contact fatigue life of bearings. Weidlich et al [23][24][25] discussed the influence of roll surface temperature and heat-penetration depth on roll contact fatigue surface damage. The change of surface temperature will affect the size of plastic strain inside parts.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the heat energy and multi‐level load on subsurface fatigue damage evolution via multi‐scale method

Hao

Qian

et al. 2023

Fatigue Fract Eng Mat Struct

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The relationship between heat energy and initial fatigue life of different metals under multi-level loading stress and elevated temperature is introduced. The fatigue damage evolution model was established from the microscopic and mesoscopic perspectives to explore the fatigue damage and the crack initiation location at elevated temperature. Based on the method of continuous damage mechanics, the influence of multi-level loads on fatigue cracking life and heat energy on strain energy of distribution were investigated. The mathematical model is verified by the experimental data. The model has important engineering significance for predicting the service life of parts at elevated temperature. K E Y W O R D S elevated temperature, fatigue crack, heat energy, multi-level load, multi-scale Highlights 1. Fatigue damage model is established by the coupling of microcosmic and microcosmic.2. The relationship between heat energy and fatigue life is discussed.3. The influence of heat energy on sub-surface damage of parts was investigated.4. Considering the influence of heat energy to improve the accuracy of fatigue model.

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The influence of rolling mill process parameters on roll thermal fatigue

Cited by 13 publications

References 16 publications

Brazilian Tribology: origin, status quo and future perspectives

Brazilian Tribology: origin, status quo and future perspectives

Influence of thermal stresses on the phenomenon of thermal fatigue of rolling cylinders

Investigation of the heat energy and multi‐level load on subsurface fatigue damage evolution via multi‐scale method

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