Formability and fracture studies of austenitic stainless steel 316 at different temperatures

Hussaini, S.M.; Singh, Swadesh Kumar; Gupta, Amit Kumar

doi:10.1016/j.jksues.2013.05.001

Cited by 8 publications

(3 citation statements)

References 14 publications

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“…For this initial model, stainless steel AISI 316 was selected as the material of the workpiece. This alloy is well-known for its good formability and other properties like corrosion resistance, toughness and weldability which makes it ideal for a wide range of applications in the aerospace and engineering fields [87][88][89]. The good formability of this alloy also means that it should be easily shear formed in real life and not represent a challenge for this FE model.…”

Section: Discussionmentioning

confidence: 99%

Microstructure and modelling of shear forming

Valdez

Wynne

Lee

2019

AIP Conference Proceedings

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Section: Discussionmentioning

confidence: 99%

Microstructure and modelling of shear forming

Valdez

Wynne

Lee

2019

AIP Conference Proceedings

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“…LDR of the material is decreased to 2.4. But from the previous work it was investigated that as the temperature increased, LDR of sheet metal increases [25]. At the temperature of 400°C, ASS 316 has undergone DSA phenomena.…”

Section: Fig8mentioning

confidence: 99%

Formability of Austenitic Stainless Steel 316 Sheet in Dynamic Strain Aging Regime

Hussaini¹,

Singh²,

Gupta³

2014

Acta Metall Slovaca

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Dynamic strain aging region for austenitic stainless steel 316 was investigated from room temperature to 650°C at constant strain rates of 1x10 -2 , 1x10 -3 and 1x10 -4 sec -1 . Characteristics indicators of serrated plastic flow were observed in the temperature range of 400°C to 600°C at these strain rates. Strain rate sensitivity of the material is found to be negative in this region. Study of fracture surface of tensile test specimen by scanning electron microscope revealed that ductility in this region decreased. The limiting drawing ratio of sheet metal is the indicator of formability in deep drawing. LDR of the sheet metal was estimated by performing the deep drawing of different diameter blanks in finite element simulation software LS-DYNA in DSA temperature region. It was observed that in DSA region, formability of sheet metal decreased. These simulations are validated and compared with experimental results.

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“…If the temperature is increased for the forming process, the flow stresses are lowered, residual stresses are also reduced, and deformation becomes easier, hence improving formability [6,7]. The lower flow stresses and heightened formability make it possible to achieve greater stretching, and permits deeper drawing in creating the final product [8]. Sheet metal bending at elevated temperatures that are below recrystallization temperature is considered warm forming.…”

Section: Introductionmentioning

confidence: 99%

Bendability and failure mechanisms of dual phase steel under air-bending at elevated temperatures

Pornputsiri

Kanlayasiri

2018

MATEC Web Conf.

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In this study, process parameters such as the bending angle and bending temperature of the metal sheets for pure bending of advanced high strength steel sheet DP980 were investigated using the air-bending method. This investigation focused on bendability and failure mechanisms. Experimental studies were carried out with various bending temperatures and the bending angle parameters to identify effect on springback angle, initial crack, and the evolution of the microstructure. Prior to testing, the DP steel sheets were heattreated at different temperatures (room temperature, 200 °C, 400 °C, and 600 °C) with a heating rate of 2 °C/S and 5 minutes of holding time in an electric furnace. As a result of the experiments performed at different temperature values and bending angle values, it was determined that an increase in the bending angle reduces the size of the springback angle. It was also determined that an increase in air-bending-temperature reduces the amount of springback. Air-bending-temperature also affected the microstructure evolution and slowed the cracking of the bent surface.

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Formability and fracture studies of austenitic stainless steel 316 at different temperatures

Cited by 8 publications

References 14 publications

Microstructure and modelling of shear forming

Microstructure and modelling of shear forming

Formability of Austenitic Stainless Steel 316 Sheet in Dynamic Strain Aging Regime

Bendability and failure mechanisms of dual phase steel under air-bending at elevated temperatures

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