The effect of annealing on the microstructural evolution and mechanical properties in phase reversed 316LN austenitic stainless steel

Xu, Dongdong; Li, Guangqiang; Wan, Xiangliang; Misra, R.D.K.; Zhang, Xianguang; Xu, Guang; Wu, Kaiming

doi:10.1016/j.msea.2018.02.018

Cited by 56 publications

(18 citation statements)

References 16 publications

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“…The discrepancy of the chemical composition led to the different stacking fault energy. The stacking fault energy of AISI 316LN ASS in our present paper was lower than that in [ 20 ]. The lower the stacking fault energy, the more unstable the austenite, therefore the easier it is for the strain-induced martensite transformation to occur.…”

Section: Resultscontrasting

confidence: 66%

“…The lower the stacking fault energy, the more unstable the austenite, therefore the easier it is for the strain-induced martensite transformation to occur. Thus, at the same deformation, the volume fraction of the transformed martensite in the present paper was higher than that in [ 20 ]. Furthermore, the increase of hardness was more significant when compared with the volume fraction of martensite due to the obvious work-hardening of the studied steel.…”

Section: Resultscontrasting

confidence: 61%

“…When the rolling deformation was up to 90% at room temperature, the volume fraction of transformed martensite increased to 72%. Xu et al [ 20 ] also found the incomplete transformation of strain-induced martensite in AISI 316LN ASS after RTR90, but the volume fraction of transformed martensite was only 46%. The discrepancy between the present work and the work by Xu et al could mainly be due to the difference in chemical composition.…”

Section: Resultsmentioning

confidence: 99%

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Effect of Rolling Temperature on Microstructure Evolution and Mechanical Properties of AISI316LN Austenitic Stainless Steel

Xiong

Yue

et al. 2018

Materials

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The impacts of rolling temperature on phase transformations and mechanical properties were investigated for AISI 316LN austenitic stainless steel subjected to rolling at cryogenic and room temperatures. The microstructure evolution and the mechanical properties were investigated by means of optical, scanning, and transmission electron microscopy, an X-ray diffractometer, microhardness tester, and tensile testing system. Results showed that strain-induced martensitic transformation occurred at both deformation temperatures, and the martensite volume fraction increased with the deformation. Compared with room temperature rolling, cryorolling substantially enhanced the martensite transformation rate. At 50% deformation, it yielded the same fraction as the room temperature counterpart at 90% strain, while at 70%, it totally transformed the austenite to martensite. The strength and hardness of the stainless steel increased remarkably with the deformation, but the corresponding elongation decreased dramatically. Meanwhile, the tensile fracture morphology changed from a typical ductile rupture to a mixture of ductile and quasi-cleavage fracture. The phase transformation and deformation mechanisms differed at two temperatures, with the martensite deformation contributing to the former, and austenite deformation to the latter. Orientations between the transformed martensite and its parent phase followed the K–S (Kurdjumov–Sachs) relationship.

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Section: Resultscontrasting

confidence: 66%

Section: Resultscontrasting

confidence: 61%

Section: Resultsmentioning

confidence: 99%

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Effect of Rolling Temperature on Microstructure Evolution and Mechanical Properties of AISI316LN Austenitic Stainless Steel

Xiong

Yue

et al. 2018

Materials

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“…Therefore, it is beneficial to the dislocation walls forming during the deformation, and the dislocations are absorbed quickly by the dislocation walls. At last, the subgrains trap dislocations and transform them into normal grains [27], as shown in Figure 6d. Another reason may be the reduced pinning effect of the carbide particles.…”

Section: Effect Of Temperature Scheme On Microstructurementioning

confidence: 99%

“…transform them into normal grains [27], as shown in Figure 6d. Another reason may be the reduced pinning effect of the carbide particles.…”

Section: Effect Of Temperature Scheme On Microstructurementioning

confidence: 99%

Effect of Temperature Scheme on Microstructure and Mechanical Properties during Medium Carbon Steel Warm Processing

Fan

Chen

2019

Metals

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Influence of temperature scheme on the microstructure and properties variation of medium carbon steel warm deformation was studied with testing equipment of Gleeble-3500, SEM, TEM, EBSD, and φ350 reversal rolling mill. The results show that the temperature of 650 facilitates the formation of ultrafine homogeneous microstructure. The microstructure formed during temperature range of 650–700 °C is relative homogeneous and fine. The mechanical properties of warm rolling are influenced by the cooling modes. The lower cooling rate is benefit to the combination of strength and ductility.

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Yielding Behavior and Strengthening Mechanisms of a High Strength Ultrafine‐Grained Cr–Mn–Ni–N Stainless Steel

Xie

Huo

et al. 2021

steel research int.

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The microstructure of Cr–Mn–Ni–N stainless steel is regulated by a combination of cold deformation and subsequent martensite reversed annealing. The yield strength and tensile strength of the tested steel are greatly improved to 1220 and 1357 MPa, respectively, by conventional heavy cold rolling (66% thickness reduction) and a subsequent annealing process (750 °C for 5 min) relative to those before cold rolling (austenized state); at the same time, the total elongation keeps an appropriate value. The results show that the grain refinement strengthening acts as the primary factor for the strengthening of the tested steels while the precipitation behavior from the M23C6‐type carbides is not quite effective. Additionally, different yield phenomena and microstructural evolution for tested steels with 66% thickness reduction annealed at 750 °C with different holding times are systematically analyzed and discussed. Lüders‐like deformation features noticeably appear but become weakening with the longer annealing time. The change in initial free mobile dislocation density is the core cause of the preyield plateau phenomenon.

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The effect of annealing on the microstructural evolution and mechanical properties in phase reversed 316LN austenitic stainless steel

Cited by 56 publications

References 16 publications

Effect of Rolling Temperature on Microstructure Evolution and Mechanical Properties of AISI316LN Austenitic Stainless Steel

Effect of Rolling Temperature on Microstructure Evolution and Mechanical Properties of AISI316LN Austenitic Stainless Steel

Effect of Temperature Scheme on Microstructure and Mechanical Properties during Medium Carbon Steel Warm Processing

Yielding Behavior and Strengthening Mechanisms of a High Strength Ultrafine‐Grained Cr–Mn–Ni–N Stainless Steel

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