Deformation behavior of heterogeneous lamellar Cu-Fe-P immiscible alloys with enhanced strength and ductility produced by laser powder bed fusion

Chongyu Wen; Yatin Qiu; Zhiguo Zhang; Kunmao Li; Cheng Deng; Lianxi Hu; Dongchu Chen; Yang Lu; Shengfeng Zhou

doi:10.1016/j.jallcom.2023.172675

Deformation behavior of heterogeneous lamellar Cu-Fe-P immiscible alloys with enhanced strength and ductility produced by laser powder bed fusion

Chongyu Wen
, Yatin Qiu
, Zhiguo Zhang
, Kunmao Li
, Cheng Deng
, Lianxi Hu
, Dongchu Chen
, Yang Lu^*
, Shengfeng Zhou^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

23 Citations (Scopus)

Abstract

Cu-Fe-P immiscible alloys characterized by heterogeneous lamellar structure were manufactured by laser powder bed fusion (LPBF) and the deformation behavior of LPBF-produced immiscible alloys was investigated systematically. When the linear energy density of 133 J/m is adopted during LPBF, the immiscible alloy exhibits the highest compressive strength (∼1 GPa) and engineering strain (∼27%). The high strength of the LPBF-produced immiscible alloy is attributed to the heterogeneous lamellar structure including the interconnected Fe₂P layer and nano-Fe₂P particles as “hard” phase dispersed in the ε-Cu matrix as the “soft” phase. Moreover, the good ductility is attributed to the fine ε-Cu grains as “soft” phase precipitated within the lamellar Fe₂P due to the secondary liquid phase separation (SLPS). This “soft-hard-soft” heterogeneous microstructure can effectively delay crack growth to exhibit excellent mechanical properties in the LPBF-produced immiscible alloys. © 2023 Elsevier B.V.

Original language	English
Article number	172675
Journal	Journal of Alloys and Compounds
Volume	971
Online published	29 Oct 2023
DOIs	https://doi.org/10.1016/j.jallcom.2023.172675
Publication status	Published - 15 Jan 2024
Externally published	Yes

Funding

This work was financially supported by the Major Research Plan of the National Natural Science Foundation of China (Grant No. 92166112 ), the National Natural Science Foundation of China (Grant No. 92166112 , 51261027 , 52001137 , 52373236 ), the Project of MOE Key Lab of Disaster Forecast and Control in Engineering in Jinan University (Grant No. 20200904006 ), the Guangdong Province Basic and Applied Basic Research Foundation (Grant No. 2020B1515420004 ), the Guangxi Key Laboratory of Information Materials (Grant No. 211003-K , 221012-K ), the Open Project Program of the State Key Laboratory of Mechanical Transmissions in Chongqing University (Grant No. SKLMT-MSKFKT-202102 ), the Open Project Program of Wuhan National Laboratory for Optoelectronics (Grant No. 2021WNLOKF010 ), the Guangdong Province International Science and Technology Cooperation Project ( 2023A0505050103 ), and the supported by the Fundamental Research Funds for the Central Universities (Grant No. 21622110 ).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Research Keywords

Cu-Fe-P
Heterogeneous structure
Immiscible alloys
Laser powder bed fusion

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10.1016/j.jallcom.2023.172675

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title = "Deformation behavior of heterogeneous lamellar Cu-Fe-P immiscible alloys with enhanced strength and ductility produced by laser powder bed fusion",

abstract = "Cu-Fe-P immiscible alloys characterized by heterogeneous lamellar structure were manufactured by laser powder bed fusion (LPBF) and the deformation behavior of LPBF-produced immiscible alloys was investigated systematically. When the linear energy density of 133 J/m is adopted during LPBF, the immiscible alloy exhibits the highest compressive strength (∼1 GPa) and engineering strain (∼27\%). The high strength of the LPBF-produced immiscible alloy is attributed to the heterogeneous lamellar structure including the interconnected Fe2P layer and nano-Fe2P particles as “hard” phase dispersed in the ε-Cu matrix as the “soft” phase. Moreover, the good ductility is attributed to the fine ε-Cu grains as “soft” phase precipitated within the lamellar Fe2P due to the secondary liquid phase separation (SLPS). This “soft-hard-soft” heterogeneous microstructure can effectively delay crack growth to exhibit excellent mechanical properties in the LPBF-produced immiscible alloys. {\textcopyright} 2023 Elsevier B.V.",

keywords = "Cu-Fe-P, Heterogeneous structure, Immiscible alloys, Laser powder bed fusion",

author = "Chongyu Wen and Yatin Qiu and Zhiguo Zhang and Kunmao Li and Cheng Deng and Lianxi Hu and Dongchu Chen and Yang Lu and Shengfeng Zhou",

year = "2024",

month = jan,

day = "15",

doi = "10.1016/j.jallcom.2023.172675",

language = "English",

volume = "971",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

Deformation behavior of heterogeneous lamellar Cu-Fe-P immiscible alloys with enhanced strength and ductility produced by laser powder bed fusion. / Wen, Chongyu; Qiu, Yatin; Zhang, Zhiguo et al.
In: Journal of Alloys and Compounds, Vol. 971, 172675, 15.01.2024.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Deformation behavior of heterogeneous lamellar Cu-Fe-P immiscible alloys with enhanced strength and ductility produced by laser powder bed fusion

AU - Wen, Chongyu

AU - Qiu, Yatin

AU - Zhang, Zhiguo

AU - Li, Kunmao

AU - Deng, Cheng

AU - Hu, Lianxi

AU - Chen, Dongchu

AU - Lu, Yang

AU - Zhou, Shengfeng

PY - 2024/1/15

Y1 - 2024/1/15

N2 - Cu-Fe-P immiscible alloys characterized by heterogeneous lamellar structure were manufactured by laser powder bed fusion (LPBF) and the deformation behavior of LPBF-produced immiscible alloys was investigated systematically. When the linear energy density of 133 J/m is adopted during LPBF, the immiscible alloy exhibits the highest compressive strength (∼1 GPa) and engineering strain (∼27%). The high strength of the LPBF-produced immiscible alloy is attributed to the heterogeneous lamellar structure including the interconnected Fe2P layer and nano-Fe2P particles as “hard” phase dispersed in the ε-Cu matrix as the “soft” phase. Moreover, the good ductility is attributed to the fine ε-Cu grains as “soft” phase precipitated within the lamellar Fe2P due to the secondary liquid phase separation (SLPS). This “soft-hard-soft” heterogeneous microstructure can effectively delay crack growth to exhibit excellent mechanical properties in the LPBF-produced immiscible alloys. © 2023 Elsevier B.V.

AB - Cu-Fe-P immiscible alloys characterized by heterogeneous lamellar structure were manufactured by laser powder bed fusion (LPBF) and the deformation behavior of LPBF-produced immiscible alloys was investigated systematically. When the linear energy density of 133 J/m is adopted during LPBF, the immiscible alloy exhibits the highest compressive strength (∼1 GPa) and engineering strain (∼27%). The high strength of the LPBF-produced immiscible alloy is attributed to the heterogeneous lamellar structure including the interconnected Fe2P layer and nano-Fe2P particles as “hard” phase dispersed in the ε-Cu matrix as the “soft” phase. Moreover, the good ductility is attributed to the fine ε-Cu grains as “soft” phase precipitated within the lamellar Fe2P due to the secondary liquid phase separation (SLPS). This “soft-hard-soft” heterogeneous microstructure can effectively delay crack growth to exhibit excellent mechanical properties in the LPBF-produced immiscible alloys. © 2023 Elsevier B.V.

KW - Cu-Fe-P

KW - Heterogeneous structure

KW - Immiscible alloys

KW - Laser powder bed fusion

UR - https://www.scopus.com/pages/publications/85175457240

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85175457240&origin=recordpage

U2 - 10.1016/j.jallcom.2023.172675

DO - 10.1016/j.jallcom.2023.172675

M3 - RGC 21 - Publication in refereed journal

SN - 0925-8388

VL - 971

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 172675

ER -

Deformation behavior of heterogeneous lamellar Cu-Fe-P immiscible alloys with enhanced strength and ductility produced by laser powder bed fusion

Abstract

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Research Keywords

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