Interface engineering of functionally graded steel-steel composites by laser powder bed fusion

Venkata K. Nadimpalli; Oleg V. Mishin; Meimei Lin; Thomas L. Christiansen; David B. Pedersen; Yubin Zhang

doi:10.1016/j.mfglet.2021.03.003

Interface engineering of functionally graded steel-steel composites by laser powder bed fusion

Venkata K. Nadimpalli^*, Oleg V. Mishin, Meimei Lin, Thomas L. Christiansen, David B. Pedersen, Yubin Zhang

^*Corresponding author for this work

Technical University of Denmark

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Abstract

In this study, the manufacturability of new types of steel-steel composites on an open-architecture laser powder bed fusion (LPBF) system is demonstrated. A hard martensitic stainless tool steel 440C and a soft austenitic stainless steel 316L are combined in a “multi-material” component with discrete and continuous material gradients. Interface engineering is accomplished through a heat treatment to induce phase transformation. A designed distribution of carbides/carbonitrides and local martensitic transformation lead to controllable variations in hardness. Hence, the compositionally-graded component is converted into a functionally-graded composite. The concept showcases the potential for selectively engineering the properties of steel-steel additively manufactured composites.

Original language	English
Journal	Manufacturing Letters
Volume	28
Pages (from-to)	46-49
ISSN	2213-8463
DOIs	https://doi.org/10.1016/j.mfglet.2021.03.003
Publication status	Published - 2021

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Publisher Copyright:
© 2021

Keywords

Additive manufacturing
Compositionally-graded materials
Functionally-graded materials
High-carbon martensitic steels
Steel-steel composites

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title = "Interface engineering of functionally graded steel-steel composites by laser powder bed fusion",

abstract = "In this study, the manufacturability of new types of steel-steel composites on an open-architecture laser powder bed fusion (LPBF) system is demonstrated. A hard martensitic stainless tool steel 440C and a soft austenitic stainless steel 316L are combined in a “multi-material” component with discrete and continuous material gradients. Interface engineering is accomplished through a heat treatment to induce phase transformation. A designed distribution of carbides/carbonitrides and local martensitic transformation lead to controllable variations in hardness. Hence, the compositionally-graded component is converted into a functionally-graded composite. The concept showcases the potential for selectively engineering the properties of steel-steel additively manufactured composites.",

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author = "Nadimpalli, {Venkata K.} and Mishin, {Oleg V.} and Meimei Lin and Christiansen, {Thomas L.} and Pedersen, {David B.} and Yubin Zhang",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2021",

doi = "10.1016/j.mfglet.2021.03.003",

language = "English",

volume = "28",

pages = "46--49",

journal = "Manufacturing Letters",

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T1 - Interface engineering of functionally graded steel-steel composites by laser powder bed fusion

AU - Nadimpalli, Venkata K.

AU - Mishin, Oleg V.

AU - Lin, Meimei

AU - Christiansen, Thomas L.

AU - Pedersen, David B.

AU - Zhang, Yubin

PY - 2021

Y1 - 2021

N2 - In this study, the manufacturability of new types of steel-steel composites on an open-architecture laser powder bed fusion (LPBF) system is demonstrated. A hard martensitic stainless tool steel 440C and a soft austenitic stainless steel 316L are combined in a “multi-material” component with discrete and continuous material gradients. Interface engineering is accomplished through a heat treatment to induce phase transformation. A designed distribution of carbides/carbonitrides and local martensitic transformation lead to controllable variations in hardness. Hence, the compositionally-graded component is converted into a functionally-graded composite. The concept showcases the potential for selectively engineering the properties of steel-steel additively manufactured composites.

AB - In this study, the manufacturability of new types of steel-steel composites on an open-architecture laser powder bed fusion (LPBF) system is demonstrated. A hard martensitic stainless tool steel 440C and a soft austenitic stainless steel 316L are combined in a “multi-material” component with discrete and continuous material gradients. Interface engineering is accomplished through a heat treatment to induce phase transformation. A designed distribution of carbides/carbonitrides and local martensitic transformation lead to controllable variations in hardness. Hence, the compositionally-graded component is converted into a functionally-graded composite. The concept showcases the potential for selectively engineering the properties of steel-steel additively manufactured composites.

KW - Additive manufacturing

KW - Compositionally-graded materials

KW - Functionally-graded materials

KW - High-carbon martensitic steels

KW - Steel-steel composites

U2 - 10.1016/j.mfglet.2021.03.003

DO - 10.1016/j.mfglet.2021.03.003

M3 - Journal article

AN - SCOPUS:85104345151

SN - 2213-8463

VL - 28

SP - 46

EP - 49

JO - Manufacturing Letters

JF - Manufacturing Letters

ER -

Interface engineering of functionally graded steel-steel composites by laser powder bed fusion

Abstract

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