High resolution digital image correlation for microstructural strain analysis of a stainless steel repaired by Directed Energy Deposition

Yanis Balit; Camille Guévenoux; Alexandre Tanguy; Manas V. Upadhyay; Eric Charkaluk; Andrei Constantinescu

doi:10.1016/j.matlet.2020.127632

High resolution digital image correlation for microstructural strain analysis of a stainless steel repaired by Directed Energy Deposition

Yanis Balit
, Camille Guévenoux
, Alexandre Tanguy
, Manas V. Upadhyay
, Eric Charkaluk
, Andrei Constantinescu

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

Abstract

Deformations within a microstructural gradient zone of stainless steel repaired specimens are investigated. The repair, added material by Directed Energy Deposition over a hot rolled sheet substrate, was tested in monotonic tensile experiments. In situ tests, scanning electron microscope images combined with high resolution digital image correlation and electron backscatter diffraction maps, permitted to monitor the local strain distribution. The strain distribution is homogeneous in the substrate and exhibits a heterogeneous pattern in the printed part with localization correlating spatially with the position of interlayers. The vicinity of the interface has smaller strains and exhibits larger hardness.

Original language	English
Article number	127632
Journal	Materials Letters
Volume	270
DOIs	https://doi.org/10.1016/j.matlet.2020.127632
Publication status	Published - 1 Jul 2020
Externally published	Yes

Keywords

Directed Energy Deposition
Electron backscatter diffraction maps
High resolution digital image correlation
Repair
Strain map

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10.1016/j.matlet.2020.127632

Cite this

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title = "High resolution digital image correlation for microstructural strain analysis of a stainless steel repaired by Directed Energy Deposition",

abstract = "Deformations within a microstructural gradient zone of stainless steel repaired specimens are investigated. The repair, added material by Directed Energy Deposition over a hot rolled sheet substrate, was tested in monotonic tensile experiments. In situ tests, scanning electron microscope images combined with high resolution digital image correlation and electron backscatter diffraction maps, permitted to monitor the local strain distribution. The strain distribution is homogeneous in the substrate and exhibits a heterogeneous pattern in the printed part with localization correlating spatially with the position of interlayers. The vicinity of the interface has smaller strains and exhibits larger hardness.",

keywords = "Directed Energy Deposition, Electron backscatter diffraction maps, High resolution digital image correlation, Repair, Strain map",

author = "Yanis Balit and Camille Gu{\'e}venoux and Alexandre Tanguy and Upadhyay, \{Manas V.\} and Eric Charkaluk and Andrei Constantinescu",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2020",

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doi = "10.1016/j.matlet.2020.127632",

language = "English",

volume = "270",

journal = "Materials Letters",

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T1 - High resolution digital image correlation for microstructural strain analysis of a stainless steel repaired by Directed Energy Deposition

AU - Balit, Yanis

AU - Guévenoux, Camille

AU - Tanguy, Alexandre

AU - Upadhyay, Manas V.

AU - Charkaluk, Eric

AU - Constantinescu, Andrei

PY - 2020/7/1

Y1 - 2020/7/1

N2 - Deformations within a microstructural gradient zone of stainless steel repaired specimens are investigated. The repair, added material by Directed Energy Deposition over a hot rolled sheet substrate, was tested in monotonic tensile experiments. In situ tests, scanning electron microscope images combined with high resolution digital image correlation and electron backscatter diffraction maps, permitted to monitor the local strain distribution. The strain distribution is homogeneous in the substrate and exhibits a heterogeneous pattern in the printed part with localization correlating spatially with the position of interlayers. The vicinity of the interface has smaller strains and exhibits larger hardness.

AB - Deformations within a microstructural gradient zone of stainless steel repaired specimens are investigated. The repair, added material by Directed Energy Deposition over a hot rolled sheet substrate, was tested in monotonic tensile experiments. In situ tests, scanning electron microscope images combined with high resolution digital image correlation and electron backscatter diffraction maps, permitted to monitor the local strain distribution. The strain distribution is homogeneous in the substrate and exhibits a heterogeneous pattern in the printed part with localization correlating spatially with the position of interlayers. The vicinity of the interface has smaller strains and exhibits larger hardness.

KW - Directed Energy Deposition

KW - Electron backscatter diffraction maps

KW - High resolution digital image correlation

KW - Repair

KW - Strain map

U2 - 10.1016/j.matlet.2020.127632

DO - 10.1016/j.matlet.2020.127632

M3 - Article

AN - SCOPUS:85082166318

SN - 0167-577X

VL - 270

JO - Materials Letters

JF - Materials Letters

M1 - 127632

ER -

High resolution digital image correlation for microstructural strain analysis of a stainless steel repaired by Directed Energy Deposition

Abstract

Keywords

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