5th International High Manganese Steel Conference - HMNS 2022

Abstract: Advanced austenitic stainless steels are a group of austenitic stainless steels with a nickel content near or higher 30 wt% and a pitting resistance equivalent number (PREN) is near or higher than 40. They are widely used in the oil-gas and chemical industries. Due to high Ni content, these alloys are costly. Mn and N are two low cost alloying element for austenite stability. In this...

1. INTRODUCTION
   Herein, the structural and chemical features of passive films formed on a high Cr-added high-Mn 18 (wt%) twinning-induced plasticity (TWIP) steel and on two different austenitic stainless (304L and 316L) steels were revealed via Cs-corrected scanning transmission electron microscopy (STEM) and atom probe tomography (APT).

2. EXPERIMENTAL
   With a goal of increasing the...

In this work, it was shown that quenching and partitioning (Q&P) processing can be applied to interstitial alloyed CrMnNi austenitic steels capable of martensitic transformation during cryogenic cooling. With the aid of Q&P, ultra-high strength properties can be achieved with exceptional elongation even in the as-cast state. In the present study, the alloy Fe-15Cr-3Mn-3Ni-0.16C-0.12N...

It is state of the art, that the corrosion resistance of stainless steels is mainly controlled by the alloying elements Cr, Mo and N. Derived from that, the widely applied pitting resistance equivalent number (PREN), is used to estimate and compare the pitting corrosion resistance of such steels. -
In this work, the focus was laid on the role of the Mn influence on the passive layer....

The plastic deformation of solution annealed Fe-17Cr-8.6Mn-4Ni-0.17N-steel (concentrations in wt.%) and the resulting strain-induced α´-martensite evolution were investigated at different tensile test temperatures to provide an estimate of martensite formation during tube manufacture. For this purpose, the onset and evolution of α´-martensite were determined by in situ magnetic measurement...