Annealing behavior of a 304L stainless steel processed by large strain cold and warm rolling

Odnobokova, Marina; Belyakov, Andrey; Enikeev, Nariman A.; Molodov, Dmitri A.; Kaibyshev, Rustam

doi:10.1016/j.msea.2017.02.073

Cited by 64 publications

(42 citation statements)

References 54 publications

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“…The retention of α‐fiber in the ferrite phase in the present case is a result of the combination of both the recovery tendency of the α phase, due to its lower stored energy, and the fiber stability in the phase during processing. In contrast, the presence of {110}<001> Goss and {112}<111> copper components in austenite after processing was also reported by Odnobokova et al . in a study with a warm‐rolled, at 300 °C, and annealed 304L steel.…”

Section: Discussionsupporting

confidence: 68%

“…[18,19] The retention of α-fiber in the ferrite phase in the present case is a result of the combination of both the recovery tendency of the α phase, due to its lower stored energy, and the fiber stability in the phase during processing. In contrast, the presence of {110} <001> Goss and {112}<111> copper components in austenite after processing was also reported by Odnobokova et al [20] in a study with a warm-rolled, at 300 C, and annealed 304L steel. According to Nezakat et al, [21] the increase in the thickness reduction level, during cold rolling, promoted an enhancement in the {110}<001> Goss intensity at the end of heat treatment in a 310S stainless steel.…”

Section: Microtexture Evolutionsupporting

confidence: 67%

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Effect of Warm Rolling and Annealing on Microstructure, Texture, and Mechanical Properties of a 2205 Duplex Stainless Steel

Tavares

Rodrigues

Santos

2020

steel research int.

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The effect of warm rolling and annealing processes on the microstructure, microtexture, and mechanical properties of a 2205 duplex stainless steel is investigated in this work. To evaluate the microstructure, scanning (SEM) and transmission electron microscopy (TEM) and electron backscatter diffraction are used as the main techniques. The mechanical properties are assessed through tensile tests. A transition from a bamboo type into a pearl structure is observed as the thickness reduction increases. Furthermore, the ferrite phase presents a weakening of the α‐fiber (<011>//rolling direction, RD) and a development of γ‐fiber (<111>//normal direction, ND), whereas the austenite has a reduction in the intensity of the {110}<112> brass component and a strengthening of the {110}<001> Goss and {112}<111> copper components. Multistage work hardening behavior is observed by Jaoul–Crussard analysis, which indicates the presence of secondary deformation mechanisms during the plastic deformation of the steel. Post‐deformation SEM and TEM results reveal the formation of α′ and ε‐martensite at deformed regions. The orientation relationship that develops between γ‐ and ε‐martensite is Shoji–Nishiyama (S–N) <110>γ//<2110>ε.

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Section: Discussionsupporting

confidence: 68%

Section: Microtexture Evolutionsupporting

confidence: 67%

Effect of Warm Rolling and Annealing on Microstructure, Texture, and Mechanical Properties of a 2205 Duplex Stainless Steel

Tavares

Rodrigues

Santos

2020

steel research int.

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“…The values of σ 0 = 160 MPa and k y = 355 MPa µm 0.5 are obtained in the present study. Note here, almost the same σ 0 and k y have been reported in other papers on austenitic steels [13,[24][25][26].…”

Section: Mechanical Propertiessupporting

confidence: 89%

Microstructure and Mechanical Properties of a High-Mn TWIP Steel Subjected to Cold Rolling and Annealing

Kalinenko

Kusakin

Belyakov

et al. 2017

Metals

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Abstract:The structure-property relationship was studied in an Fe-18Mn-0.6C-1.5Al steel subjected to cold rolling to various total reductions from 20% to 80% and subsequent annealing for 30 min at temperatures of 673 to 973 K. The cold rolling resulted in significant strengthening of the steel. The hardness increased from 1900 to almost 6000 MPa after rolling reduction of 80%. Recovery of cold worked microstructure developed during annealing at temperatures of 673 and 773 K, resulting in slight softening, which did not exceed 0.2. On the other hand, static recrystallization readily developed in the cold rolled samples with total reductions above 20% during annealing at 873 and 973 K, leading to fractional softening of about 0.8. The recrystallized grain size depended on annealing temperature and rolling reduction; namely, it decreased with a decrease in the temperature and an increase in the rolling reduction. The mean recrystallized grain size from approximately 1 to 8 µm could be developed depending on the rolling/annealing conditions. The recovered and fine grained recrystallized steel samples were characterized by improved strength properties. The yield strength of the recovered, recrystallized, and partially recrystallized steel samples could be expressed by a unique relationship taking into account the fractional contributions from dislocation and grain size strengthening into overall strength.

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“…As is depicted by hardness map in Figure , the starting temperature to trigger the recrystallization is estimated as ≈800 °C or 0.64 T m , which is meaningfully higher than that of other single phase austenitic steels. In this respect, the previous studies reported that the fully austenitic 304L‐ stainless steel showed much lower recrystallization temperature (complete recrystallization after rolling to a true strain of ϵ = 3 and annealing at 700 °C), or in another study the high Mn‐TWIP steel was fully recrystallized after 50% cold rolling and subsequent annealing at 700 °C …”

Section: Resultsmentioning

confidence: 92%

Microstructural Evolution and Texture Analysis in a Thermomechanically Processed Low SFE Super‐Austenitic Steel (Alloy‐28)

2018

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Microstructural evolution and texture analysis after 80% cold rolling and subsequent annealing in the temperature range of 750-1050 C is surveyed in Alloy-28. This is precisely studied through electron back scattered diffraction and also is declared through elaborating the hardness map. The occurrence of partially recrystallization is clearly evident in the microstructure which was treated 850 C annealing for 30 min. The recrystallization process is completed at 950 C even after 3 min, but in an inhomogeneous manner, that is, coexistence of relatively large and fine recrystallized grains. This microstructure contains a high volume of special grain boundaries ended to the complete and homogenous recrystallization at 1050 C, where further grain growth is occurred with increasing time. Texture analysis shows the retaining of Goss texture after annealing at 850 C and this component is introduced as the main reason for retarding recrystallization and, therefore, creation of inhomogeneous microstructure. Finally, the specimens processed at 1050 C indicate the α-fiber texture due to occurrence of grain growth. The mechanical properties improvement is mainly attributed to the development of S component and also formation of high fraction of annealing twin. Although, predominant the appearance of Goss texture and grain growth are also known as the main reason for deteriorating strength.

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Annealing behavior of a 304L stainless steel processed by large strain cold and warm rolling

Cited by 64 publications

References 54 publications

Effect of Warm Rolling and Annealing on Microstructure, Texture, and Mechanical Properties of a 2205 Duplex Stainless Steel

Effect of Warm Rolling and Annealing on Microstructure, Texture, and Mechanical Properties of a 2205 Duplex Stainless Steel

Microstructure and Mechanical Properties of a High-Mn TWIP Steel Subjected to Cold Rolling and Annealing

Microstructural Evolution and Texture Analysis in a Thermomechanically Processed Low SFE Super‐Austenitic Steel (Alloy‐28)

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