Surface modification of an austenitic stainless steel wire by a multi-pulse treatment with a high-power electric current

F. Nürnberger; G. Gerstein; A. Dalinger; S. E. Thürer; A. Vinogradov; A. Feldhoff; H. J. Maier

doi:10.1007/s10853-017-1003-z

Surface modification of an austenitic stainless steel wire by a multi-pulse treatment with a high-power electric current

F. Nürnberger
, G. Gerstein^*
, A. Dalinger
, S. E. Thürer
, A. Vinogradov
, A. Feldhoff
, H. J. Maier

^*Corresponding author for this work

Norwegian University of Science and Technology (NTNU)

Research output: Contribution to journal › Article › Research › peer review

Abstract

The skin effect caused by high-power electric pulses can be used for modification of the surface microstructure in metallic materials. The electric current pulses of high amplitude and short rapid surface heating followed by melting and rapid solidification due to heat exchange with the bulk. New high-current multi-pulse equipment was engineered and used for the surface modification of a stainless steel. The microstructure was investigated by transmission electron microscopy as a function of the distance from the surface. Rapid surface heating and high cooling rate caused drastic changes in the initial austenitic structure, amorphization of the surface layer and pronounced mechanical twinning in the subsurface region.

Original language	English
Pages (from-to)	8007-8015
Number of pages	9
Journal	Journal of materials science
Volume	52
Issue number	13
DOIs	https://doi.org/10.1007/s10853-017-1003-z
Publication status	Published - 23 Mar 2017

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1007/s10853-017-1003-z

Cite this

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title = "Surface modification of an austenitic stainless steel wire by a multi-pulse treatment with a high-power electric current",

abstract = "The skin effect caused by high-power electric pulses can be used for modification of the surface microstructure in metallic materials. The electric current pulses of high amplitude and short rapid surface heating followed by melting and rapid solidification due to heat exchange with the bulk. New high-current multi-pulse equipment was engineered and used for the surface modification of a stainless steel. The microstructure was investigated by transmission electron microscopy as a function of the distance from the surface. Rapid surface heating and high cooling rate caused drastic changes in the initial austenitic structure, amorphization of the surface layer and pronounced mechanical twinning in the subsurface region.",

author = "F. N{\"u}rnberger and G. Gerstein and A. Dalinger and Th{\"u}rer, \{S. E.\} and A. Vinogradov and A. Feldhoff and Maier, \{H. J.\}",

note = "Funding information: Financial support of this study by the German Research Foundation (DFG) under contract GE 2673/2-1 “Effects of High Current Density Impulses on the Properties and Microstructure of Nickelbase Superalloys” is gratefully acknowledged.",

year = "2017",

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doi = "10.1007/s10853-017-1003-z",

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T1 - Surface modification of an austenitic stainless steel wire by a multi-pulse treatment with a high-power electric current

AU - Nürnberger, F.

AU - Gerstein, G.

AU - Dalinger, A.

AU - Thürer, S. E.

AU - Vinogradov, A.

AU - Feldhoff, A.

AU - Maier, H. J.

N1 - Funding information: Financial support of this study by the German Research Foundation (DFG) under contract GE 2673/2-1 “Effects of High Current Density Impulses on the Properties and Microstructure of Nickelbase Superalloys” is gratefully acknowledged.

PY - 2017/3/23

Y1 - 2017/3/23

N2 - The skin effect caused by high-power electric pulses can be used for modification of the surface microstructure in metallic materials. The electric current pulses of high amplitude and short rapid surface heating followed by melting and rapid solidification due to heat exchange with the bulk. New high-current multi-pulse equipment was engineered and used for the surface modification of a stainless steel. The microstructure was investigated by transmission electron microscopy as a function of the distance from the surface. Rapid surface heating and high cooling rate caused drastic changes in the initial austenitic structure, amorphization of the surface layer and pronounced mechanical twinning in the subsurface region.

AB - The skin effect caused by high-power electric pulses can be used for modification of the surface microstructure in metallic materials. The electric current pulses of high amplitude and short rapid surface heating followed by melting and rapid solidification due to heat exchange with the bulk. New high-current multi-pulse equipment was engineered and used for the surface modification of a stainless steel. The microstructure was investigated by transmission electron microscopy as a function of the distance from the surface. Rapid surface heating and high cooling rate caused drastic changes in the initial austenitic structure, amorphization of the surface layer and pronounced mechanical twinning in the subsurface region.

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U2 - 10.1007/s10853-017-1003-z

DO - 10.1007/s10853-017-1003-z

M3 - Article

AN - SCOPUS:85015975401

SN - 0022-2461

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JO - Journal of materials science

JF - Journal of materials science

IS - 13

ER -

Surface modification of an austenitic stainless steel wire by a multi-pulse treatment with a high-power electric current

Abstract

ASJC Scopus subject areas

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Effects of High Current Density Impulses on the Properties and Microstructure of Nickelbase Superalloys

Effects of High Current Density Impulses on the Properties and Microstructure of Nickelbase Superalloys

Cite this