Determination of diffraction and single-crystal elastic constants of laser powder bed fused Inconel 718

Jakob Schröder; Alexander Heldmann; Michael Hofmann; Alexander Evans; Winfried Petry; Giovanni Bruno

doi:10.1016/j.matlet.2023.135305

Determination of diffraction and single-crystal elastic constants of laser powder bed fused Inconel 718

Jakob Schröder, Alexander Heldmann, Michael Hofmann, Alexander Evans, Winfried Petry, Giovanni Bruno

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Abstract

High energy X-ray synchrotron diffraction is used to investigate the elastic anisotropy of the nickel-based superalloy IN718 produced by laser powder bed fusion (PBF-LB). This material is characterized by a columnar grain morphology with some crystallographic texture. The material is subjected to elastic loading to determine the diffraction elastic constants (DECs). Furthermore, the single-crystal elastic constants (SCEC) are refined from these experiments using different micromechanical models. The results show that each micromechanical model predicts a specific set of SCEC that well describes the elastic anisotropy of PBF-LB/IN718.

Original language	English
Article number	135305
Journal	Materials Letters
Volume	353
DOIs	https://doi.org/10.1016/j.matlet.2023.135305
State	Published - 15 Dec 2023

Keywords

Diffraction elastic constants
Elastic anisotropy
Laser powder bed fusion
Single-crystal elastic constants
X-ray diffraction

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10.1016/j.matlet.2023.135305

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title = "Determination of diffraction and single-crystal elastic constants of laser powder bed fused Inconel 718",

abstract = "High energy X-ray synchrotron diffraction is used to investigate the elastic anisotropy of the nickel-based superalloy IN718 produced by laser powder bed fusion (PBF-LB). This material is characterized by a columnar grain morphology with some crystallographic texture. The material is subjected to elastic loading to determine the diffraction elastic constants (DECs). Furthermore, the single-crystal elastic constants (SCEC) are refined from these experiments using different micromechanical models. The results show that each micromechanical model predicts a specific set of SCEC that well describes the elastic anisotropy of PBF-LB/IN718.",

keywords = "Diffraction elastic constants, Elastic anisotropy, Laser powder bed fusion, Single-crystal elastic constants, X-ray diffraction",

author = "Jakob Schr{\"o}der and Alexander Heldmann and Michael Hofmann and Alexander Evans and Winfried Petry and Giovanni Bruno",

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doi = "10.1016/j.matlet.2023.135305",

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T1 - Determination of diffraction and single-crystal elastic constants of laser powder bed fused Inconel 718

AU - Schröder, Jakob

AU - Heldmann, Alexander

AU - Hofmann, Michael

AU - Evans, Alexander

AU - Petry, Winfried

AU - Bruno, Giovanni

PY - 2023/12/15

Y1 - 2023/12/15

N2 - High energy X-ray synchrotron diffraction is used to investigate the elastic anisotropy of the nickel-based superalloy IN718 produced by laser powder bed fusion (PBF-LB). This material is characterized by a columnar grain morphology with some crystallographic texture. The material is subjected to elastic loading to determine the diffraction elastic constants (DECs). Furthermore, the single-crystal elastic constants (SCEC) are refined from these experiments using different micromechanical models. The results show that each micromechanical model predicts a specific set of SCEC that well describes the elastic anisotropy of PBF-LB/IN718.

AB - High energy X-ray synchrotron diffraction is used to investigate the elastic anisotropy of the nickel-based superalloy IN718 produced by laser powder bed fusion (PBF-LB). This material is characterized by a columnar grain morphology with some crystallographic texture. The material is subjected to elastic loading to determine the diffraction elastic constants (DECs). Furthermore, the single-crystal elastic constants (SCEC) are refined from these experiments using different micromechanical models. The results show that each micromechanical model predicts a specific set of SCEC that well describes the elastic anisotropy of PBF-LB/IN718.

KW - Diffraction elastic constants

KW - Elastic anisotropy

KW - Laser powder bed fusion

KW - Single-crystal elastic constants

KW - X-ray diffraction

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U2 - 10.1016/j.matlet.2023.135305

DO - 10.1016/j.matlet.2023.135305

M3 - Article

AN - SCOPUS:85173559762

SN - 0167-577X

VL - 353

JO - Materials Letters

JF - Materials Letters

M1 - 135305

ER -

Determination of diffraction and single-crystal elastic constants of laser powder bed fused Inconel 718

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