Dynamic Recrystallization in Ferritic Stainless Steel

Maki, Tadashi; Okaguchi, Shuji; Tamura, Imao

doi:10.1016/b978-1-4832-8423-1.50088-2

Cited by 23 publications

(16 citation statements)

References 5 publications

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“…This was in agreement with the previous work on this material. 2,4,8,9) The microstructural evidence and experimental flow curves suggest that dynamic recrystallisation was not occurring under the industrial deformation conditions. Therefore the restoration mechanism captured was considered to be post deformation static recrystallisation.…”

Section: Recrystallising Microstructurementioning

confidence: 99%

“…[2][3][4][5] The recrystallisation behaviour is much less well defined. The literature reports three dynamic mechanisms during hot working, from recovery and recrystallisation to continuous dynamic recrystallisation.…”

mentioning

confidence: 99%

“…The literature reports three dynamic mechanisms during hot working, from recovery and recrystallisation to continuous dynamic recrystallisation. 2,4,[6][7][8][9] The static restoration mechanisms are also unclear, with the driving force considered to be the remaining stored energy after hot working.…”

mentioning

confidence: 99%

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Restoration Processes during Hot Deformation in the δ-ferrite and Austenite Dual Phase Region of AISI430 Ferritic Stainless Steel

Hinton

Beynon

2007

ISIJ Int.

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The restoration mechanisms of AISI430 ferritic stainless steel under industrial rolling conditions (strain 0.6, strain rate 16 s Ϫ1 ) were studied experimentally. Dynamic recovery followed by static recrystallisation and concurrent static recovery were observed in the ferrite phase at the hot rolling temperature (960°C). Complete recrystallisation (Ͼ70 %) was hindered by the impingement of the new grains on the widespread g phase and the extensive recovery. At lower strain rates, typical of nominal laboratory experiments, restoration through a more continuous process was observed, where recovery mechanisms were promoted by the longer deformation time. An explanation of the microstructural evolution of this material under hot rolling conditions and the interaction of these mechanisms is presented.

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Section: Recrystallising Microstructurementioning

confidence: 99%

mentioning

confidence: 99%

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Restoration Processes during Hot Deformation in the δ-ferrite and Austenite Dual Phase Region of AISI430 Ferritic Stainless Steel

Hinton

Beynon

2007

ISIJ Int.

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“…A high-temperature extensometer was employed to monitor the change in strain during warm compression. The sampling volume of columnar specimens for the neutron diffraction was about 80 mm 3 . Figure 2 illustrates the temperature history during neutron diffraction schematically.…”

Section: Methodsmentioning

confidence: 99%

“…[2][3][4][5] Recent researches have reported that large strain and a high Zener-Hollomon value may be unnecessary in order to obtain ultrafine grained microstructures if the martensite initial microstructure is employed during annealing after cold working or during warm deformation. [6][7][8][9][10] It has been speculated that the high dislocation density of martensite, the strong interaction between carbon atoms and dislocations and the fine substructure of martensite can promote the accumulation of stored energy during warm deformation, and hence accelerate the occurrence of dynamic recrystallization.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Recrystallization and Dynamic Precipitation Behaviors of a 17Ni–0.2C Martensite Steel Studied by In Situ Neutron Diffraction

Tomota

Oliver

2008

ISIJ Int.

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A Laboratory Steckel Mill Simulation

Hinton

Beynon

2008

steel research international

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The recrystallisation of AISI430 ferritic stainless steel during hot working is considered crucial for developing suitable product properties for sheet metal forming. Attention has focused on the ability to accurately reproduce the process route conditions of hot Steckel mill rolling at the laboratory scale. The variability was considered through five complex simulations on the IMMPETUS thermomechanical compression (TMC) test machine. This paper presents the methods employed to translate the industrial practice into laboratory based experiments, and the development of the simulation to a satisfactory level. This paper includes a discussion of the quality of the simulation, particularly with regard to its use as a tool for analysing metallurgical changes.

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Dynamic Recrystallization in Ferritic Stainless Steel

Cited by 23 publications

References 5 publications

Restoration Processes during Hot Deformation in the δ-ferrite and Austenite Dual Phase Region of AISI430 Ferritic Stainless Steel

Restoration Processes during Hot Deformation in the δ-ferrite and Austenite Dual Phase Region of AISI430 Ferritic Stainless Steel

Dynamic Recrystallization and Dynamic Precipitation Behaviors of a 17Ni–0.2C Martensite Steel Studied by In Situ Neutron Diffraction

A Laboratory Steckel Mill Simulation

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