Ultrafine-grained austenitic stainless steels X4CrNi18-12 and X8CrMnNi19-6-3 produced by accumulative roll bonding

Ruppert M, Freund L, Wenzl T, Höppel HW, Göken M (2015)


Publication Type: Journal article

Publication year: 2015

Journal

Book Volume: 5

Pages Range: 730-742

Journal Issue: 2

DOI: 10.3390/met5020730

Abstract

Austenitic stainless steels X4CrNi18-12 and X8CrMnNi19-6-3 were processed by accumulative roll bonding (ARB). Both materials show an extremely high yield strength of 1.25 GPa accompanied by a satisfactory elongation to failure of up to 14% and a positive strain rate sensitivity after two ARB cycles. The strain-hardening rate of the austenitic steels reveals a stabilization of the stress-strain behavior during tensile testing. Especially for X8CrMnNi19-6-3, which has an elevated manganese content of 6.7 wt.%, necking is prevented up to comparatively high plastic strains. Microstructural investigations showed that the microstructure is separated into ultrafine-grained channel like areas and relatively larger grains where pronounced nano-twinning and martensite formation is observed.

Authors with CRIS profile

Additional Organisation(s)

Related research project(s)

How to cite

APA:

Ruppert, M., Freund, L., Wenzl, T., Höppel, H.W., & Göken, M. (2015). Ultrafine-grained austenitic stainless steels X4CrNi18-12 and X8CrMnNi19-6-3 produced by accumulative roll bonding. Metals, 5(2), 730-742. https://doi.org/10.3390/met5020730

MLA:

Ruppert, Mathis, et al. "Ultrafine-grained austenitic stainless steels X4CrNi18-12 and X8CrMnNi19-6-3 produced by accumulative roll bonding." Metals 5.2 (2015): 730-742.

BibTeX: Download