Tensile Flow Analysis of Austenitic Type 316LN Stainless Steel: Effect of Nitrogen Content

Palaparti, D.P. Rao; Ganesan, V.; Christopher, J.; Reddy, G.V. Prasad

doi:10.1007/s11665-021-05484-y

Cited by 10 publications

(4 citation statements)

References 31 publications

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“…The serrated yielding can also be seen at the non-linear curve (plastic area) in the engineering stress-strain curve where work hardening has occurred. From literature, the serrated yielding does typically not found at room temperature [5,11]. However, the serrated yielding is found for 316L(N) SS at 24 o C with 10 -5 /s of strain rate.…”

Section: Resultsmentioning

confidence: 94%

“…The serrated yielding phenomenon has been investigated for several metal alloys such as aluminum alloy, stainless steel, and nickel-based super-alloys [2,[4][5][6][7][8]. The 316L(N) SS as one type of austenitic stainless steel is still an essential component for the power plant [5,[9][10][11]. This type of steel has several unique properties, exceptionally compatible with the liquid sodium coolant and stable at elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

“…This type of steel has several unique properties, exceptionally compatible with the liquid sodium coolant and stable at elevated temperatures. Several studies have been conducted to investigate the characteristic of 316L(N) SS under tension load for particular temperature and strain rate conditions [11]. Furthermore, it has been reported that uncommon due to serrated yielding was found for particular strain rate and temperature.…”

Section: Introductionmentioning

confidence: 99%

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The Portevin-Le Chatelier Type for 316L(N) SS at Low Deformation Rate

Ekaputra

Haryadi

Dewa

et al. 2023

KEM

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This study determined the serrated yielding type for 316L(N) SS due to the Portevin-Le Chatelier effect under particular temperature conditions with the range of 24 to 655 °C at 10-5/s of plastic deformation rate. The 316L(N) SS was loaded by tensile test apparatus equipped with a three-zone furnace. The cylindrical specimen was put at the centre of the furnace. Since the test was conducted at various temperatures, a thermocouple was attached to the surface of the specimen. After the test, the engineering stress-strain curve was plotted, and the serrated yielding was observed. The results showed that the type A, B, D, and E were identified for a particular temperature. Type B was identified at the low-temperature region, and type A was identified at the high-temperature region. In addition, the work hardening rate curve was plotted to describe the plastic deformation characteristic.

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Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Portevin-Le Chatelier Type for 316L(N) SS at Low Deformation Rate

Ekaputra

Haryadi

Dewa

et al. 2023

KEM

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“…[ 10 ] The recent study on the tensile flow of high‐N stainless steel from Rao Palaparti pointed out that nitrogen content had a direct impact on the strain hardening coefficient and exponent, which reduced the tendency for dynamic recovery (DRV). [ 11 ] Wang studied the influence of deformation temperature, strain rate, and strain amount parameters on the thermal deformation behavior of high‐nitrogen austenitic stainless steel (HNASS). Furthermore, the grain boundary migration and dynamic nucleation mechanism were explained.…”

Section: Introductionmentioning

confidence: 99%

Hot Deformation Behavior and 3D Processing Maps of Mn18Cr18N Steel

Zhang

Cen

Wang

et al. 2022

steel research int.

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The isothermal hot deformation behavior in the ranges of 1023–1473 K (750–1200 °C) and 0.001–10 s−1 for 0.53 wt% N‐bearing Mn18Cr18N steel is studied with a Gleeble‐3500 thermomechanical simulator. The results indicate that the peak stress decreases with decreasing strain rate and increasing temperature. The calculated deformation activation energy of the experimental steel is 449.118 kJ mol−1 by regression analysis. At the same time, 3D processing maps are established based on experimental data and the principles of the dynamic materials model. The domain of stable deformation gradually expands with the increase in strain, while the instability region shrinks accordingly. From the microstructure of specimens and the processing maps established, it is clear that dynamic recrystallization emerges in the peak power dissipation efficiency domain, 1000–1150 °C/0.002–0.1 s−1, which is the optimum region of hot working of the steel.

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