scholarly journals Effet de la Température sur la Microstructure des Couches d’Oxydes Formées sur l’Acier Extra dur Durant le Processus de Laminage à Chaud = Effect of Temperature on the Microstructure of the Oxide Layers Formed on the High Carbon Steel during Hot Rolling Process

2015 ◽  
pp. 101-107
Author(s):  
Gérard Moulin ◽  
Jérôme Favergeon ◽  
Amine Makni
Keyword(s):  
Carbon Steel ◽  
Hot Rolling ◽  
High Carbon Steel ◽  
Rolling Process ◽  
Effect Of Temperature ◽  
High Carbon ◽  
Oxide Layers ◽  
Hot Rolling Process

Carbide Fragmentation and Dissolution in a High-Carbon High-Chromium Steel Using Hot Rolling Process: Microstructure Evolution, Wear, High-Temperature Oxidation, and Chloride-Induced Corrosion Properties

CORROSION ◽  
10.5006/2749 ◽  
2018 ◽  
Vol 74 (9) ◽  
pp. 958-970 ◽  
Author(s):  
Majid Shahsanaei ◽  
Sadegh Pour-Ali ◽  
Ali-Reza Kiani-Rashid ◽  
Sannakaisa Virtanen
Keyword(s):  
High Temperature ◽  
Corrosion Behavior ◽  
Hot Rolling ◽  
High Temperature Oxidation ◽  
Rolling Process ◽  
High Carbon ◽  
Corrosion Properties ◽  
Temperature Oxidation ◽  
High Chromium ◽  
Hot Rolling Process

A series of hot rolling processes with different reduction percentages (10%, 30%, and 50%) were applied to a high-carbon high-chromium tool steel (2HCTS). Microstructural evolutions, wear behavior, high-temperature oxidation, and aqueous corrosion properties were investigated. The results revealed the breakage and dissolution of primary carbides and a uniform carbide distribution after the hot rolling process. It was proposed that the presence of higher amounts of dissolved chromium in the hot rolled samples leads to the formation of Cr-rich oxides with more protection and less porosity at high temperatures, as well as an improved corrosion behavior in 3.5 wt% NaCl solution. This improvement in the corrosion behavior is not at the expense of the degradation of wear resistance. Probable mechanisms for carbides dissolution are also discussed.

scholarly journals ESTIMATION OF DEFORMABILITY OF HIGH-CARBON STEEL UNDER FORGING

2019 ◽  
Vol 61 (12) ◽  
pp. 995-996
Author(s):  
G. A. Orlov ◽  
Е. N. Shestakova
Keyword(s):  
Wear Resistance ◽  
Carbon Steel ◽  
Hot Rolling ◽  
Hot Deformation ◽  
Finite Temperature ◽  
High Carbon Steel ◽  
Alloying Elements ◽  
Temperature Deformation ◽  
High Carbon ◽  
Hypereutectoid Steel

The article presents high-carbon hypereutectoid steel for production of hot rolling forged rolls. The steel contains 1.2 – 1.4 % of carbon, carbide forming alloying elements Cr, Mo, V and Nb improving  wear  resistance  of  the  rolls,  and  Ni  increasing  hardening  capacity.  It  has  been  found  that  steel  of  proposed  composition  provides  ductility  sufficient  for  hot  deformation  (forging)  by  moderate  single  compressions. Temperature range of ingot deformation has been detected: finite  temperature deformation should not be below 900 °C, forging temperature – 1150 °C. According to its properties steel can be recommended  for manufacturing solid-forged rolls and bandages for composite rolls  of hot rolling from ingots of up to 10 tons weight.

The Mathematic Model of Deformation Resistance of S50C Medium Carbon Steel in Hot Rolling Process

2013 ◽  
Vol 652-654 ◽  
pp. 2043-2047
Author(s):  
Jing Long Liang ◽  
Yun Li Feng ◽  
Jin Zhi Yin ◽  
Da Qiang Cang ◽  
Hui Li
Keyword(s):  
Carbon Steel ◽  
Hot Rolling ◽  
Deformation Rate ◽  
Deformation Temperature ◽  
Rolling Process ◽  
Medium Carbon Steel ◽  
Deformation Resistance ◽  
Deformation Degree ◽  
Medium Carbon ◽  
Hot Rolling Process

A test study of deformation resistance of S50C medium carbon steel in hot rolling process was conducted by using Gleeble 3500 Thermal-mechanical testing machine. The relationship of deformation resistance with different deformation temperature and deformation rate and deformation degree was analyzed through the stress-strain curve of S50C medium carbon steel which measured in the test. The results show that the deformation resistance increase with decrease of deformation temperature and increase of deformation rate and deformation degree. The math model of plastic deformation for metal of tested steel is established by using 1stopt software with multi-component non-regression. The model is proved has good curve fitting characteristics though a regression analysis of the model, it can be used provide theory basis for the formulation of rolling process and calculation of the mechanical parameters.

scholarly journals Intergranular and Internal Oxidation during Hot-rolling Process in Ultra-low Carbon Steel.

2002 ◽  
Vol 42 (2) ◽  
pp. 206-214 ◽  
Author(s):  
Taro Kizu ◽  
Yasunobu Nagataki ◽  
Toru Inazumi ◽  
Yoshihiro Hosoya
Keyword(s):  
Carbon Steel ◽  
Internal Oxidation ◽  
Hot Rolling ◽  
Low Carbon Steel ◽  
Rolling Process ◽  
Low Carbon ◽  
Hot Rolling Process ◽  
Ultra Low Carbon Steel

Interface Microstructure and Properties of 304 Austenite Stainless Steel/Low Carbon Steel Clad Plate by Casting and Hot Rolling Process

2014 ◽  
Vol 852 ◽  
pp. 178-182
Author(s):  
Shuo Li ◽  
Di Tang ◽  
Hui Bin Wu ◽  
Ji Guang Xiong
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Carbon Steel ◽  
Hot Rolling ◽  
Low Carbon Steel ◽  
Rolling Process ◽  
Low Carbon ◽  
Interface Shear ◽  
Austenite Stainless Steel ◽  
Hot Rolling Process

The 304 austenite stainless steel and low carbon steel clad plate was fabricated by casting and hot rolling process. The mechanical properties and interface shear strength of clad plates with different thickness after rolling were investigated in detail. The microstructure characteristics of the clad interface were observed by SEM (Scanning Electron Microscope). The phases and chemical composition were analyzed by XRD (X-ray diffraction) and EDS (energy dispersive spectroscopy). Based on the results, the mechanical properties and interface shear strengths meet the requirements of national standards. No visible cracks were observed in the clad interface after bending test. Cr3C2precipitates, Fe3O4oxides and Fe-Cr intermetallic compound were distributed around the interface of clad plate after casting, but a good metallurgical bonding was achieved after hot-rolling.

Plain Carbon Strip Q235 Grain Growth in Reheating Progress

2012 ◽  
Vol 528 ◽  
pp. 172-175
Author(s):  
Chun Li Mo ◽  
Shou Peng Du ◽  
Xu Ming Guo ◽  
Lie Shan Cui
Keyword(s):  
Grain Size ◽  
Carbon Steel ◽  
Grain Growth ◽  
Hot Rolling ◽  
Physical Simulation ◽  
Rolling Process ◽  
Plain Carbon Steel ◽  
Kinetics Equation ◽  
Reheat Furnace ◽  
Hot Rolling Process

Before hot rolling the ingot of plain carbon steel Q235 should be heated to austenite temperature to decrease distortion resistance. The grain size will affect the following hot rolling process. In this paper, the behaviour of Q235 grain growth in reheat furnace was studied with the method of physical simulation. To achieve the equation of grain growth in heating progress, the samples was carried out in different peak temperature and holding time at the Gleeble1500. With the kinetics equation grain size can be calculated and the results provide a basis for the setting of progress parameter during reheating of ingot.

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