The effect of microstructural imperfections on corrosion fatigue of additively manufactured ER70S-6 alloy produced by wire arc deposition

Tomer Ron; Galit Katarivas Levy; Ohad Dolev; Avi Leon; Amnon Shirizly; Eli Aghion

doi:10.3390/met10010098

The effect of microstructural imperfections on corrosion fatigue of additively manufactured ER70S-6 alloy produced by wire arc deposition

Tomer Ron, Galit Katarivas Levy, Ohad Dolev, Avi Leon, Amnon Shirizly, Eli Aghion

Department of Materials Engineering

Ben-Gurion University of the Negev

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

Abstract

This study aims at evaluating the effect of microstructure imperfections on the corrosion fatigue performance of an ER70S-6 alloy produced by wire arc additive manufacturing (WAAM) process, in a 3.5% NaCl solution. For reference, a regular ST-37 alloy with relatively similar chemical composition was considered as a counterpart alloy. This was justified by the fact that the ER70S-6 alloy is usually used for conventional welding of ST-37 steel. The results obtained indicated that while the ST-37 alloy exhibited fatigue strength of 240 MPa in the corrosive solution, the additively manufactured ER70S-6 alloy showed fatigue strength of only 140 MPa. These differences were related to microstructural imperfections that are inherently produced during the WAAM process.

Original language	American English
Article number	98
Journal	Metals
Volume	10
Issue number	1
DOIs	https://doi.org/10.3390/met10010098
State	Published - 1 Jan 2020

Keywords

Additive manufacturing
Corrosion
Direct energy deposition
ER70S-6
Fatigue
Steel
Wire arc deposition

All Science Journal Classification (ASJC) codes

General Materials Science

UN SDGs

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

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10.3390/met10010098

Cite this

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title = "The effect of microstructural imperfections on corrosion fatigue of additively manufactured ER70S-6 alloy produced by wire arc deposition",

abstract = "This study aims at evaluating the effect of microstructure imperfections on the corrosion fatigue performance of an ER70S-6 alloy produced by wire arc additive manufacturing (WAAM) process, in a 3.5% NaCl solution. For reference, a regular ST-37 alloy with relatively similar chemical composition was considered as a counterpart alloy. This was justified by the fact that the ER70S-6 alloy is usually used for conventional welding of ST-37 steel. The results obtained indicated that while the ST-37 alloy exhibited fatigue strength of 240 MPa in the corrosive solution, the additively manufactured ER70S-6 alloy showed fatigue strength of only 140 MPa. These differences were related to microstructural imperfections that are inherently produced during the WAAM process.",

keywords = "Additive manufacturing, Corrosion, Direct energy deposition, ER70S-6, Fatigue, Steel, Wire arc deposition",

author = "Tomer Ron and Levy, {Galit Katarivas} and Ohad Dolev and Avi Leon and Amnon Shirizly and Eli Aghion",

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AU - Ron, Tomer

AU - Levy, Galit Katarivas

AU - Dolev, Ohad

AU - Leon, Avi

AU - Shirizly, Amnon

AU - Aghion, Eli

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N2 - This study aims at evaluating the effect of microstructure imperfections on the corrosion fatigue performance of an ER70S-6 alloy produced by wire arc additive manufacturing (WAAM) process, in a 3.5% NaCl solution. For reference, a regular ST-37 alloy with relatively similar chemical composition was considered as a counterpart alloy. This was justified by the fact that the ER70S-6 alloy is usually used for conventional welding of ST-37 steel. The results obtained indicated that while the ST-37 alloy exhibited fatigue strength of 240 MPa in the corrosive solution, the additively manufactured ER70S-6 alloy showed fatigue strength of only 140 MPa. These differences were related to microstructural imperfections that are inherently produced during the WAAM process.

AB - This study aims at evaluating the effect of microstructure imperfections on the corrosion fatigue performance of an ER70S-6 alloy produced by wire arc additive manufacturing (WAAM) process, in a 3.5% NaCl solution. For reference, a regular ST-37 alloy with relatively similar chemical composition was considered as a counterpart alloy. This was justified by the fact that the ER70S-6 alloy is usually used for conventional welding of ST-37 steel. The results obtained indicated that while the ST-37 alloy exhibited fatigue strength of 240 MPa in the corrosive solution, the additively manufactured ER70S-6 alloy showed fatigue strength of only 140 MPa. These differences were related to microstructural imperfections that are inherently produced during the WAAM process.

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KW - Direct energy deposition

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KW - Fatigue

KW - Steel

KW - Wire arc deposition

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The effect of microstructural imperfections on corrosion fatigue of additively manufactured ER70S-6 alloy produced by wire arc deposition

Abstract

Keywords

All Science Journal Classification (ASJC) codes

UN SDGs

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