Novel approach to image hydrogen distribution and related phase transformation in duplex stainless steels at the sub-micron scale

Oded Sobol; Gert Nolze; Romeo Saliwan-Neumann; Dan Eliezer; Thomas Boellinghaus; Wolfgang E.S. Unger

doi:10.1016/j.ijhydene.2017.08.016

Novel approach to image hydrogen distribution and related phase transformation in duplex stainless steels at the sub-micron scale

Oded Sobol, Gert Nolze, Romeo Saliwan-Neumann, Dan Eliezer, Thomas Boellinghaus, Wolfgang E.S. Unger

Department of Materials Engineering

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

24 Scopus citations

Abstract

The effect of electrochemical charging of hydrogen on the structure of a lean duplex stainless steel LDX 2101^® (EN 1.4162, UNS S32101) was examined by both Time-of-Flight secondary ion mass spectrometry and electron back-scatter diffraction. The goal is to correlate hydrogen concentration and induced structural changes. Chemical and structural characterizations were done for the same region at the sample's surface with sub-micron spatial resolution. Regions of interest were varying in size between 50 × 50 μm and 100 × 100 μm. The results show a phase transformation of austenite to mainly a defect-rich BCC and scarcely a HCP phase. The phase transformation occurred in deuterium rich regions in the austenite.

Original language	English
Pages (from-to)	25114-25120
Number of pages	7
Journal	International Journal of Hydrogen Energy
Volume	42
Issue number	39
DOIs	https://doi.org/10.1016/j.ijhydene.2017.08.016
State	Published - 28 Sep 2017

Keywords

Data fusion
Electron backscatter diffraction, EBSD
Hydrogen assisted cracking
Lean duplex stainless steel
Time-of-flight secondary ion mass spectrometry, ToF-SIMS

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2017.08.016

Cite this

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title = "Novel approach to image hydrogen distribution and related phase transformation in duplex stainless steels at the sub-micron scale",

abstract = "The effect of electrochemical charging of hydrogen on the structure of a lean duplex stainless steel LDX 2101{\textregistered} (EN 1.4162, UNS S32101) was examined by both Time-of-Flight secondary ion mass spectrometry and electron back-scatter diffraction. The goal is to correlate hydrogen concentration and induced structural changes. Chemical and structural characterizations were done for the same region at the sample's surface with sub-micron spatial resolution. Regions of interest were varying in size between 50 × 50 μm and 100 × 100 μm. The results show a phase transformation of austenite to mainly a defect-rich BCC and scarcely a HCP phase. The phase transformation occurred in deuterium rich regions in the austenite.",

keywords = "Data fusion, Electron backscatter diffraction, EBSD, Hydrogen assisted cracking, Lean duplex stainless steel, Time-of-flight secondary ion mass spectrometry, ToF-SIMS",

author = "Oded Sobol and Gert Nolze and Romeo Saliwan-Neumann and Dan Eliezer and Thomas Boellinghaus and Unger, {Wolfgang E.S.}",

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year = "2017",

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doi = "10.1016/j.ijhydene.2017.08.016",

language = "English",

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TY - JOUR

T1 - Novel approach to image hydrogen distribution and related phase transformation in duplex stainless steels at the sub-micron scale

AU - Sobol, Oded

AU - Nolze, Gert

AU - Saliwan-Neumann, Romeo

AU - Eliezer, Dan

AU - Boellinghaus, Thomas

AU - Unger, Wolfgang E.S.

PY - 2017/9/28

Y1 - 2017/9/28

N2 - The effect of electrochemical charging of hydrogen on the structure of a lean duplex stainless steel LDX 2101® (EN 1.4162, UNS S32101) was examined by both Time-of-Flight secondary ion mass spectrometry and electron back-scatter diffraction. The goal is to correlate hydrogen concentration and induced structural changes. Chemical and structural characterizations were done for the same region at the sample's surface with sub-micron spatial resolution. Regions of interest were varying in size between 50 × 50 μm and 100 × 100 μm. The results show a phase transformation of austenite to mainly a defect-rich BCC and scarcely a HCP phase. The phase transformation occurred in deuterium rich regions in the austenite.

AB - The effect of electrochemical charging of hydrogen on the structure of a lean duplex stainless steel LDX 2101® (EN 1.4162, UNS S32101) was examined by both Time-of-Flight secondary ion mass spectrometry and electron back-scatter diffraction. The goal is to correlate hydrogen concentration and induced structural changes. Chemical and structural characterizations were done for the same region at the sample's surface with sub-micron spatial resolution. Regions of interest were varying in size between 50 × 50 μm and 100 × 100 μm. The results show a phase transformation of austenite to mainly a defect-rich BCC and scarcely a HCP phase. The phase transformation occurred in deuterium rich regions in the austenite.

KW - Data fusion

KW - Electron backscatter diffraction, EBSD

KW - Hydrogen assisted cracking

KW - Lean duplex stainless steel

KW - Time-of-flight secondary ion mass spectrometry, ToF-SIMS

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U2 - 10.1016/j.ijhydene.2017.08.016

DO - 10.1016/j.ijhydene.2017.08.016

M3 - Article

AN - SCOPUS:85028508378

SN - 0360-3199

VL - 42

SP - 25114

EP - 25120

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 39

ER -

Novel approach to image hydrogen distribution and related phase transformation in duplex stainless steels at the sub-micron scale

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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