Improvement of tensile strength of cold sprayed Fe deposits via in-process powder preheating

Yingchun Xie; Ningsong Fan; Jingwen Yang; Wenya Li; Rocco Lupoi; Xueping Guo; Renzhong Huang; Shuo Yin

doi:10.1016/j.matlet.2022.132090

Improvement of tensile strength of cold sprayed Fe deposits via in-process powder preheating

Yingchun Xie, Ningsong Fan, Jingwen Yang, Wenya Li, Rocco Lupoi, Xueping Guo, Renzhong Huang, Shuo Yin

School of Materials Sience and Engineering

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

7 Scopus citations

Abstract

Cold sprayed Fe deposits were manufactured with non-preheated and preheated powders, respectively. The microstructure of the deposits was characterized by electron backscattered diffraction. The tensile property of the deposits was then evaluated. The results show that the preheated Fe powder deforms more extensively than the non-preheated powder during cold spraying due to their thermal softening. The ultimate tensile strength of the deposits made with preheated powder approximately doubles to 109.42 ± 50.56 MPa due to the enhanced intersplat bonding. However, the deposits in both cases exhibit poor ductility. The increased dislocation density and the nano-sized oxides on the preheated powder surface are considered to be the cause of low ductility of the deposits fabricated with preheated powder.

Original language	English
Article number	132090
Journal	Materials Letters
Volume	316
DOIs	https://doi.org/10.1016/j.matlet.2022.132090
State	Published - 1 Jun 2022

Keywords

Additive manufacturing
Cold spray
Fe powder preheating
Microstructure
Strengthening

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10.1016/j.matlet.2022.132090

Cite this

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title = "Improvement of tensile strength of cold sprayed Fe deposits via in-process powder preheating",

abstract = "Cold sprayed Fe deposits were manufactured with non-preheated and preheated powders, respectively. The microstructure of the deposits was characterized by electron backscattered diffraction. The tensile property of the deposits was then evaluated. The results show that the preheated Fe powder deforms more extensively than the non-preheated powder during cold spraying due to their thermal softening. The ultimate tensile strength of the deposits made with preheated powder approximately doubles to 109.42 ± 50.56 MPa due to the enhanced intersplat bonding. However, the deposits in both cases exhibit poor ductility. The increased dislocation density and the nano-sized oxides on the preheated powder surface are considered to be the cause of low ductility of the deposits fabricated with preheated powder.",

keywords = "Additive manufacturing, Cold spray, Fe powder preheating, Microstructure, Strengthening",

author = "Yingchun Xie and Ningsong Fan and Jingwen Yang and Wenya Li and Rocco Lupoi and Xueping Guo and Renzhong Huang and Shuo Yin",

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doi = "10.1016/j.matlet.2022.132090",

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TY - JOUR

T1 - Improvement of tensile strength of cold sprayed Fe deposits via in-process powder preheating

AU - Xie, Yingchun

AU - Fan, Ningsong

AU - Yang, Jingwen

AU - Li, Wenya

AU - Lupoi, Rocco

AU - Guo, Xueping

AU - Huang, Renzhong

AU - Yin, Shuo

PY - 2022/6/1

Y1 - 2022/6/1

N2 - Cold sprayed Fe deposits were manufactured with non-preheated and preheated powders, respectively. The microstructure of the deposits was characterized by electron backscattered diffraction. The tensile property of the deposits was then evaluated. The results show that the preheated Fe powder deforms more extensively than the non-preheated powder during cold spraying due to their thermal softening. The ultimate tensile strength of the deposits made with preheated powder approximately doubles to 109.42 ± 50.56 MPa due to the enhanced intersplat bonding. However, the deposits in both cases exhibit poor ductility. The increased dislocation density and the nano-sized oxides on the preheated powder surface are considered to be the cause of low ductility of the deposits fabricated with preheated powder.

AB - Cold sprayed Fe deposits were manufactured with non-preheated and preheated powders, respectively. The microstructure of the deposits was characterized by electron backscattered diffraction. The tensile property of the deposits was then evaluated. The results show that the preheated Fe powder deforms more extensively than the non-preheated powder during cold spraying due to their thermal softening. The ultimate tensile strength of the deposits made with preheated powder approximately doubles to 109.42 ± 50.56 MPa due to the enhanced intersplat bonding. However, the deposits in both cases exhibit poor ductility. The increased dislocation density and the nano-sized oxides on the preheated powder surface are considered to be the cause of low ductility of the deposits fabricated with preheated powder.

KW - Additive manufacturing

KW - Cold spray

KW - Fe powder preheating

KW - Microstructure

KW - Strengthening

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U2 - 10.1016/j.matlet.2022.132090

DO - 10.1016/j.matlet.2022.132090

M3 - 文章

AN - SCOPUS:85126387386

SN - 0167-577X

VL - 316

JO - Materials Letters

JF - Materials Letters

M1 - 132090

ER -

Improvement of tensile strength of cold sprayed Fe deposits via in-process powder preheating

Abstract

Keywords

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