Thermal-fatigue resistant work rolls for hot rolling mills
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Vyacheslav Goryany
Abstract
Cyclic temperature changes in the working layer of a roll during hot rolling cause thermal stress which leads to damage on the surface layer of the roll due to thermal fatigue. The pre-conditions of crack initiation are described. The intensity of crack propagation could be influenced by optimizing the chemical composition and physical-mechanical properties of the material on the working layer. This reduces the tendency of the material with respect to damage due to thermal fatigue and extends the lifetime of the rolls. The microstructure as well as the operational characteristics of the developed HSS working rolls resistant to thermal fatigue are presented.
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© 2019, Carl Hanser Verlag, München
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Articles in the same Issue
- Fachbeiträge/Technical Contributions
- Thermal-fatigue resistant work rolls for hot rolling mills
- Investigation of fused deposition modeling processing parameters of 3D PLA specimens by an experimental design methodology
- Strength and hardness of post-weld heat-treated thick section 7075 Al alloy friction stir welds
- Experimental and numerical study on the thermoforming process of amorphous thermoplastic polymers
- Ballistic tests of lightweight hybrid composites for body armor
- Stiffness degradation of GFRP pipes under fatigue loading
- Effect of heat treatment on the wear behavior of GX200Cr13Ni6WMoMn
- Influence of natural aging on the mechanical properties of high pressure die casting (HPDC) EN AC 46000-AlSi9Cu3(Fe) Al alloy
- Effect of rolling temperature on the microstructure and mechanical properties of 6201 Al alloy
- Performance test to evaluate the corrosion resistance of stainless steel in concrete
- Effect of support plates on the micro-drilled hole form quality in CFRP laminates
- Uncertainty analysis of milling parameters using Monte Carlo simulation, the Taguchi optimization method and data-driven modeling
- Strengthening of reinforced concrete buildings with soft story irregularity
- Determination of the hardening depth by using inversely determined micro-magnetic characteristics