Details
| Original language | English |
|---|---|
| Pages (from-to) | 8007-8015 |
| Number of pages | 9 |
| Journal | Journal of materials science |
| Volume | 52 |
| Issue number | 13 |
| Publication status | Published - 23 Mar 2017 |
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.
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Journal of materials science, Vol. 52, No. 13, 23.03.2017, p. 8007-8015.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
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.
UR - http://www.scopus.com/inward/record.url?scp=85015975401&partnerID=8YFLogxK
U2 - 10.1007/s10853-017-1003-z
DO - 10.1007/s10853-017-1003-z
M3 - Article
AN - SCOPUS:85015975401
VL - 52
SP - 8007
EP - 8015
JO - Journal of materials science
JF - Journal of materials science
SN - 0022-2461
IS - 13
ER -