The Effect of High Strain Rate on Properties and Microstructure of the Fully Austenitic High Mn Steel

Anna Śmiglewicz; Magdalena Jabłońska; Adam Płachta; Kinga Rodak; Rafał Michalik

doi:10.4028/www.scientific.net/SSP.246.55

Paper Titles

Influence of Strain Rate Effects on the Structure and Mechanical Properties of the Fully Austenitic High Mn Steels under Dynamic Impact Deformation
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The Effect of Compression Aided by Additional Shear Stress on Microstructure of Composites Reinforced with Ceramic Particles
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The Effect of High Strain Rate on Properties and Microstructure of the Fully Austenitic High Mn Steel
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The Influence of High Energy Ball Milling on the Morphology of Metal-Ceramic Composite Powders
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The Use of Thermo-Gravimetric Studies for the Assessment of Technological Properties of Quartzites for the Ferrosilicon Smelting Process
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Testing of Welded Joints of Gas-Tight Pipe Walls Made of New Generation Martensitic Steel Type VM12-SHC
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HomeSolid State PhenomenaSolid State Phenomena Vol. 246The Effect of High Strain Rate on Properties and...

The Effect of High Strain Rate on Properties and Microstructure of the Fully Austenitic High Mn Steel

Abstract:

In the paper, results of impact bending tests of a high-manganese steel of X30MnAlSi26-4-3 grade are presented. The tests were carried out using a flywheel machine, suitable for dynamic tensile tests and impact bending tests in the range of linear velocity of the forcing element from 5 ÷ 40 m/s. The obtained test results were compared with the results of impact resistance of the studied steel determined using Charpy machine. Structural investigations were carried out using light microscope and scanning transmission electron microscopy. Creating a mechanical twins at different strain rates was analyzed. The surfaces of fractures formed in the break point during bending tests were analyzed, and they indicate a presence of mixed transcrystalline fractures with a predominance of plastic fractures. Substructure studies revealed the presence of mechanical twinning induced in a high strain rate for the X30MnAlSi26-4-3 steel.

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Periodical:

Solid State Phenomena (Volume 246)

Pages:

55-58

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.246.55

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Online since:

February 2016

Authors:

Anna Śmiglewicz*, Magdalena Jabłońska, Adam Płachta, Kinga Rodak, Rafał Michalik

Keywords:

Fully Austenitic High Mn Steel, High Strain Rate, Impact Bending Test, Mechanical Twinning

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