Influence of Hot Rolling Finishing Temperature on Texture and Ridging Resistance in Stabilized Ferritic Stainless Steels

2021 ◽  
pp. 2000695
Author(s):  
Suresh Kodukula ◽  
Heikki Kokkomäki ◽  
Esa Puukko ◽  
David Porter ◽  
Jukka Kömi
Keyword(s):  
Stainless Steels ◽  
Hot Rolling ◽  
Ferritic Stainless Steels

scholarly journals Mechanisms of Sticking Phenomenon Occurring during Hot Rolling of Two Ferritic Stainless Steels

2007 ◽  
Vol 38 (11) ◽  
pp. 2776-2787 ◽  
Author(s):  
Chang-Young Son ◽  
Chang Kyu Kim ◽  
Dae Jin Ha ◽  
Sunghak Lee ◽  
Jong Seog Lee ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Hot Rolling ◽  
Ferritic Stainless Steels

Sticking Mechanisms Occurring during Hot Rolling of Ferritic Stainless Steels

2007 ◽  
Vol 26-28 ◽  
pp. 3-6 ◽  
Author(s):  
Jong Seog Lee ◽  
Chang Young Son ◽  
Chang Kyu Kim ◽  
Dae Jin Ha ◽  
Sung Hak Lee ◽  
...  
Keyword(s):  
High Temperature ◽  
Stainless Steels ◽  
Hot Rolling ◽  
Material Surface ◽  
Test Results ◽  
Simulation Test ◽  
Ferritic Stainless Steels ◽  
Oxide Layers ◽  
Rolled Material ◽  
Nucleation Sites

Sticking phenomenon occurring during hot rolling of ferritic stainless steels, STS 430J1L and STS 436L, was investigated in this study. The simulation test results at 900 oC and 1000 oC revealed that STS 430J1L had a smaller number of sticking nucleation sites than the STS 436L. When the test temperature was 1070 oC, the sticking hardly occurred in both stainless steels as Fe- Cr oxide layers were formed on the surface of the rolled materials. These findings suggested that the improvement of high-temperature properties of stainless steels and the appropriate rolling conditions for readily forming oxide layers on the rolled material surface were required in order to prevent or minimize the sticking.

scholarly journals Defect Reduction in Ferritic Stainless Steels through Modelling Plastic Deformation and Metallurgical Evolution

2021 ◽  
Vol 3 (1) ◽  
pp. 22
Author(s):  
Silvia Mancini ◽  
Luigi Langellotto ◽  
Andrea Di Schino
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Microstructural Evolution ◽  
Stainless Steels ◽  
Hot Rolling ◽  
Hot Deformation ◽  
Rolling Process ◽  
Process Conditions ◽  
Ferritic Stainless Steels ◽  
Damage Models

Steel products made of ferritic steel can show some defects, such as jagged edges, following the hot rolling process. Aiming to identify the origin of this type of defect in order to help their reduction, an in-depth study has been carried out considering the hot rolling conditions of flat bars made of EN 1.4512 steel. A wide number of references to austenitic stainless steel can be found in literature: almost all the semi-empirical models describing the microstructural evolution during hot deformation refer to austenitic stainless steel. In this work, a comprehensive model for recrystallization and grain growth of the ferritic stainless steel grade EN 1.4512 is proposed, enriching the literature and works regarding ferritic stainless steels. Thermomechanical and metallurgical models have been implemented. The microstructural evolution and the damage of the material were calculated through the coupling of metallurgical and damage models. In the thermomechanical simulations of the roughing passes, three granulometry levels (PFGS) and three heating furnace temperatures were considered. The ferritic grain evolution metallurgical model was obtained by introducing apposite equations. The results highlight that the defect could be produced by process conditions that spark abnormal heating and consequently uncontrolled growth of the grains. The work-hardened grains undergo elongation during hot deformation without recrystallizing. Those grains “squeeze” the surrounding recrystallized grains towards the edges. Thus, on the edges occurs a series of cracks that macroscopically manifest themselves as jagged edges.

Sticking Mechanisms Occurring during Hot Rolling of Ferritic Stainless Steels

2007 ◽  
pp. 3-6
Author(s):  
Jong Seog Lee ◽  
Chang Young Son ◽  
Chang Kyu Kim ◽  
Dae Jin Ha ◽  
Sung Hak Lee ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Hot Rolling ◽  
Ferritic Stainless Steels

Effects of high-temperature hardness and oxidation on sticking phenomena occurring during hot rolling of two 430J1L ferritic stainless steels

2008 ◽  
Vol 492 (1-2) ◽  
pp. 49-59 ◽  
Author(s):  
Dae Jin Ha ◽  
Chang-Young Son ◽  
Joon Wook Park ◽  
Jong Seog Lee ◽  
Yong Deuk Lee ◽  
...  
Keyword(s):  
High Temperature ◽  
Stainless Steels ◽  
Hot Rolling ◽  
Ferritic Stainless Steels

Characterization of the texture evolution in AISI 430 and AISI 433 ferritic stainless steels during simulated hot rolling

MRS Advances ◽  
2018 ◽  
Vol 3 (34-35) ◽  
pp. 1985-2002
Author(s):  
K. A. Annan ◽  
C.W. Siyasiya ◽  
W.E. Stumpf
Keyword(s):  
Dynamic Recrystallization ◽  
Strain Rate ◽  
Stainless Steels ◽  
Hot Rolling ◽  
Strain Rates ◽  
Mean Flow ◽  
Ferritic Stainless Steels ◽  
Fibre Texture ◽  
Rolling Temperatures ◽  
Aisi 430

AbstractMulti-pass compression tests were carried out on the Gleeble-1500D® and Gleeble-3800TM® thermo-mechanical simulators to investigate the effect of temperature, strain rate and inter-pass time on the development of the texture in ferritic stainless steels (FSS) AISI 430 and 433, the latter an Al-containing variant. Orientation Distribution Functions (ODFs) through the electron backscattered diffraction (EBSD) technique was employed to characterise and study the texture present in the steels after hot working. The mean flow stress analysis showed that, the dynamic recrystallization to dynamic recovery transition temperature decreases with an increase in strain rate in both grades of stainless steels possibly allowing texture optimisation at lower hot rolling temperatures. Higher finishing rolling temperatures, lower strain rates and longer inter-pass times led to improvement in the formation of the desired γ-fibre texture which contributes to ductility or drawability in these steels. Dynamic recrystallization which promotes the formation of the desired γ-fibre texture was found to occur in both AISI 430 and 433 at temperatures above 1000 °C and strain rates less than 5 s-1. Generally AISI 433 develops a stronger gamma texture than the AISI 430 when hot rolled under similar conditions.

J & L TYPE 409/409 HP

Alloy Digest ◽  
1999 ◽  
Vol 48 (5) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Stainless Steels ◽  
Heat Treating ◽  
Automotive Exhaust ◽  
Ferritic Stainless Steels ◽  
Resistance To Oxidation ◽  
Specialty Steel ◽  
Oxidation And Corrosion

Abstract J and L Types 409 HP are ferritic stainless steels with 11% chromium. They exhibit an excellent combination of good formability, economy, and resistance to oxidation and corrosion. It is typically used in automotive exhaust systems. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-743. Producer or source: J & L Specialty Steel Inc.

SUPERMET 2205

Alloy Digest ◽  
2004 ◽  
Vol 53 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Low Temperature ◽  
Tensile Properties ◽  
Stainless Steels ◽  
Ferritic Stainless Steels ◽  
Nitrogen Levels ◽  
Temperature Performance ◽  
Low Temperature Performance

Abstract Supermet 2205 is a manual metal arc (MMA) electrode with enhanced chromium, molybdenum, and nitrogen levels. It is used for welding standard 22% Cr duplex austenitic/ferritic stainless steels. This datasheet provides information on composition, microstructure, hardness, and tensile properties as well as fracture toughness. It also includes information on low temperature performance as well as joining. Filing Code: SS-903. Producer or source: Metrode Products Ltd.

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