Deformation and fracture mechanisms of selective laser melted tungsten skeleton reinforced copper matrix composites at varied temperatures

Rong Li; Wenge Chen; Kai  Zhou; Yana Yang; Longlong Dong; Ahmed Elmarakbi; Yongqing Fu

doi:10.1016/j.matlet.2022.133550

Deformation and fracture mechanisms of selective laser melted tungsten skeleton reinforced copper matrix composites at varied temperatures

Rong Li, Wenge Chen^*, Kai Zhou, Yana Yang, Longlong Dong, Ahmed Elmarakbi, Yongqing Fu^*

^*Corresponding author for this work

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Abstract

Tungsten skeleton reinforced copper matrix composites (TRC) were designed and fabricated using a selective laser melting (SLM) method followed by infiltration sintering. Deformation and fracture mechanisms were investigated at 25, 300 and 500 °C. Compressive and tensile tests of the tungsten skeletons showed brittle fracture mode, whereas tensile tests of the TRC exhibited a mixed mode of ductile and brittle fracture. Fracture mechanisms of the TRC were identified as cleavage of tungsten and separation between copper and tungsten at 25 °C. Whereas at 300 and 500 °C, its fracture mechanisms were identified as intergranular fracture of tungsten particles, tearing of copper and separation between copper and tungsten.

Original language	English
Article number	133550
Number of pages	4
Journal	Materials Letters
Volume	332
Early online date	21 Nov 2022
DOIs	https://doi.org/10.1016/j.matlet.2022.133550
Publication status	Published - 1 Feb 2023

Keywords

Additive manufacturing
Porous materials
Deformation and fracture

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10.1016/j.matlet.2022.133550

Materials Letter final accepted manuscriptAccepted author manuscript, 786 KBLicence: CC BY-NC-ND

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title = "Deformation and fracture mechanisms of selective laser melted tungsten skeleton reinforced copper matrix composites at varied temperatures",

abstract = "Tungsten skeleton reinforced copper matrix composites (TRC) were designed and fabricated using a selective laser melting (SLM) method followed by infiltration sintering. Deformation and fracture mechanisms were investigated at 25, 300 and 500 °C. Compressive and tensile tests of the tungsten skeletons showed brittle fracture mode, whereas tensile tests of the TRC exhibited a mixed mode of ductile and brittle fracture. Fracture mechanisms of the TRC were identified as cleavage of tungsten and separation between copper and tungsten at 25 °C. Whereas at 300 and 500 °C, its fracture mechanisms were identified as intergranular fracture of tungsten particles, tearing of copper and separation between copper and tungsten.",

keywords = "Additive manufacturing, Porous materials, Deformation and fracture",

author = "Rong Li and Wenge Chen and Kai Zhou and Yana Yang and Longlong Dong and Ahmed Elmarakbi and Yongqing Fu",

note = "Funding information: The financial supports from National Natural Science Foundation of China (No. 51901192), Key Research and Development Projects of Shaanxi Province (No. 2020ZDLGY12-06), National Program for Introduction of Foreign Experts (G2022041019L) through Royal Society and National Science Foundation of China.",

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doi = "10.1016/j.matlet.2022.133550",

language = "English",

volume = "332",

journal = "Materials Letters",

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TY - JOUR

T1 - Deformation and fracture mechanisms of selective laser melted tungsten skeleton reinforced copper matrix composites at varied temperatures

AU - Li, Rong

AU - Chen, Wenge

AU - Zhou, Kai

AU - Yang, Yana

AU - Dong, Longlong

AU - Elmarakbi, Ahmed

AU - Fu, Yongqing

N1 - Funding information: The financial supports from National Natural Science Foundation of China (No. 51901192), Key Research and Development Projects of Shaanxi Province (No. 2020ZDLGY12-06), National Program for Introduction of Foreign Experts (G2022041019L) through Royal Society and National Science Foundation of China.

PY - 2023/2/1

Y1 - 2023/2/1

N2 - Tungsten skeleton reinforced copper matrix composites (TRC) were designed and fabricated using a selective laser melting (SLM) method followed by infiltration sintering. Deformation and fracture mechanisms were investigated at 25, 300 and 500 °C. Compressive and tensile tests of the tungsten skeletons showed brittle fracture mode, whereas tensile tests of the TRC exhibited a mixed mode of ductile and brittle fracture. Fracture mechanisms of the TRC were identified as cleavage of tungsten and separation between copper and tungsten at 25 °C. Whereas at 300 and 500 °C, its fracture mechanisms were identified as intergranular fracture of tungsten particles, tearing of copper and separation between copper and tungsten.

AB - Tungsten skeleton reinforced copper matrix composites (TRC) were designed and fabricated using a selective laser melting (SLM) method followed by infiltration sintering. Deformation and fracture mechanisms were investigated at 25, 300 and 500 °C. Compressive and tensile tests of the tungsten skeletons showed brittle fracture mode, whereas tensile tests of the TRC exhibited a mixed mode of ductile and brittle fracture. Fracture mechanisms of the TRC were identified as cleavage of tungsten and separation between copper and tungsten at 25 °C. Whereas at 300 and 500 °C, its fracture mechanisms were identified as intergranular fracture of tungsten particles, tearing of copper and separation between copper and tungsten.

KW - Additive manufacturing

KW - Porous materials

KW - Deformation and fracture

U2 - 10.1016/j.matlet.2022.133550

DO - 10.1016/j.matlet.2022.133550

M3 - Article

SN - 0167-577X

VL - 332

JO - Materials Letters

JF - Materials Letters

M1 - 133550

ER -

Deformation and fracture mechanisms of selective laser melted tungsten skeleton reinforced copper matrix composites at varied temperatures

Abstract

Keywords

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