Property evolution on annealing deformed 304 austenitic stainless steel

Shuro, Innocent; Kuo, Ho Hung; Todaka, Yoshikazu; Umemoto, Minoru

doi:10.1007/s10853-012-6708-4

Cited by 14 publications

(5 citation statements)

References 14 publications

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“…It is evident that the α'γ reverse transformation occurred during HPT at 5rpm. A possible explanation for this could be the temperature rise of about 200K during high strain rate (5rpm) deformation [6].…”

Section: Resultsmentioning

confidence: 99%

Magnetic Characterization of SUS316L Deformed by High Pressure Torsion

Wang

Umemoto

Shuro

et al. 2011

AMR

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SUS316L austenitic stainless steel was subjected to severe plastic deformation (SPD) by the method of high pressure torsion (HPT). From a fully austenitic matrix (γ), HPT resulted in phase transformation from g®a¢. The largest volume fraction of 70% a¢ was obtained at 0.2 revolutions per minute (rpm) while was limited to 3% at 5rpm. Pre-straining of g by HPT at 5rpm decreases the volume fraction of a¢ obtained by HPT at 0.2rpm. By HPT at 5rpm, a¢®g reverse transformation was observed for a¢ produced by HPT at 0.2rpm.

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Section: Resultsmentioning

confidence: 99%

Magnetic Characterization of SUS316L Deformed by High Pressure Torsion

Wang

Umemoto

Shuro

et al. 2011

AMR

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“…The grain size of the nanocrystalline austenite increased a little after the annealing owing to the slow growth of the nanocrystalline austenite at 1073 K [28][29][30]. Plastic deformation by dislocation sliding in the tensile tests began first in the microcrystalline austenite grains on account of their low yield strength [28,29].…”

Section: Discussionmentioning

confidence: 99%

Microstructures and tensile properties of 304 steel with dual nanocrystalline and microcrystalline austenite content prepared by aluminothermic reaction casting

Wei

et al. 2014

Philosophical Magazine Letters

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The microstructures of 304 stainless steels with different amounts of nanocrystalline and microcrystalline austenite prepared by an aluminothermic reaction casting, without and with annealing at 1073 K for 8 h, have been investigated by X-ray diffraction, an electron probe micro-analyser, a transmission electron microscope and a scanning electron microscope. The steels, both without and with annealing, consisted of different dual nanocrystalline and microcrystalline austenite combinations and a little nanocrystalline δ ferrite, while the average grain size of the nanocrystalline austenite increased from 19 to 26 nm and volume fraction of the microcrystalline austenite increased from 17 to 30% after annealing. The tensile strength of the steel was dramatically increased from 500 to 1000 MPa and the tensile elongation ratio increased from 8 to 12% after annealing. However, the tensile strength was decreased to 600 MPa and the tensile elongation ratio increased from 12 to 22% after an annealing at 1273 K. The combination of dual nanocrystalline and microcrystalline austenite obtained after the annealing at 1073 K results in the best tensile properties.

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“…2e-2g). This is because enhancing the anneal temperature accelerates the diffusion of alloy elements, which results in the forming and increasing of secondary phase particle [19,20] . At 850 °C, there were nearly no precipitates of secondary phase particle, which maybe due to the dissolution of particles with the increasing anneal temperature.…”

Section: Secondary Phase Particlesmentioning

confidence: 99%

Effect of Anneal Temperature on Microstructure and Mechanical Properties of 0Cr21Ni6Mn9N cold Drawn Pipe

Xiong¹,

Zheng²,

Yuan³

et al. 2016

Proceedings of the 2nd Annual International Conference on Advanced Material Engineering (AME 2016)

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Abstract. The microstructure and mechanical properties of 0Cr21Ni6Mn9N austenitic stainless steel cold drawn pipe were investigated at various annealing temperatures. It was found that the tensile strength and the yield strength increased slightly, and then decreased with the temperature increasing from 200 to 750 °C. The highest value of tensile strength and yield strength reached 1062 and 942MPa at 600 °C, respectively. However, the elongation has an opposite trend to the tensile strength and yield strength. The microstructure evolution of the cold drawn pipe annealed at different temperatures was observed. The results indicate that when annealed below 550 °C, recovery is dominant. At 550 °C, it is recovery and partial recrystallization. Over 550 °C, complete recrystallization has likely occurred. Moreover, the Cr 2 N particles near the grain boundaries were found, and the amount of precipitates along the grain boundary indexed as M 23 C 6 were increasing at 650-800 °C.

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Property evolution on annealing deformed 304 austenitic stainless steel

Cited by 14 publications

References 14 publications

Magnetic Characterization of SUS316L Deformed by High Pressure Torsion

Magnetic Characterization of SUS316L Deformed by High Pressure Torsion

Microstructures and tensile properties of 304 steel with dual nanocrystalline and microcrystalline austenite content prepared by aluminothermic reaction casting

Effect of Anneal Temperature on Microstructure and Mechanical Properties of 0Cr21Ni6Mn9N cold Drawn Pipe

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