材料科学技术(英文版)2021，Vol.72Issue(13) ：217-222.

Additive manufacturing of steel-copper functionally graded material with ultrahigh bonding strength

Chaolin Tan Youxiang Chew Guijun Bi Di Wang Wenyou Ma Yongqiang Yang Kesong Zhou
材料科学技术(英文版)2021，Vol.72Issue(13) ：217-222.
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Additive manufacturing of steel-copper functionally graded material with ultrahigh bonding strength

Chaolin Tan 1Youxiang Chew 2Guijun Bi 2Di Wang 3Wenyou Ma 4Yongqiang Yang 3Kesong Zhou4
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作者信息

  • 1. School of Mechanical and Automotive Engineering,South China University of Technology, Guangzhou 510640, China;National Engineering Laboratory for Modem Materials Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences,Guangzhou 510651, China;Singapore Institute of Manufacturing Technology,A*STAR, 73 Nanyang Drive, 637662, Singapore
  • 2. Singapore Institute of Manufacturing Technology,A*STAR, 73 Nanyang Drive, 637662, Singapore
  • 3. School of Mechanical and Automotive Engineering,South China University of Technology, Guangzhou 510640, China
  • 4. National Engineering Laboratory for Modem Materials Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences,Guangzhou 510651, China
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Abstract

Additive manufacturing enables processing of functionally graded materials (FGMs) with flexible spatial design and high bonding strength.A steel-copper FGM with high interfacial strength was developed using laser powder bed fusion (LPBF).The effect of laser process parameters on interfacial defects was evaluated by X-ray tomography,which indicates a low porosity level of 0.042 ％ therein.Gradient/fine dendritic grains in the interface are incited by high cooling rates,which facilitates interface strengthening.Multiple mechanical tests evaluate the bonding reliability of interface;and the fatigue tests further substantiate the ultrahigh bonding strength in FGMs,which is superior to traditional manufacturing methods.Mechanisms of the high interfacial bond strength were also discussed.

Key words

Laser powder bed fusion/Steel-copper multi-materials/Fatigue/Functionally graded materials/Bonding strength

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基金项目

This work was financially supported by the Guangdong Basic and Applied Basic Research Foundation(2019A1515110542)

Guangdong Special Support Program(2019BT02C629)

National Natural Science Foundation of China(52005189)

National Natural Science Foundation of China(51775196)

Chinese Postdoctoral Science Foundation(2020M672617)

Guangzhou Science and Technology Society Project(X20200301015)

Guangzhou Science and Technology Society Project(201907010008)

Guangzhou Science and Technology Society Project(202007020008)

Guangzhou Science and Technology Society Project(201807010030)

Chinese Central Universities Funds(2018ZD30)

This work was also supported by Guangdong province Science and Technology Plan Projects(2019A1515011841)

GDAS Projects(2020GDASYL-20200402005)

GDAS Projects(2019GDASYL-0501009)

GDAS Projects(2019GDASYL-0502006)

GDAS Projects(2018GDASCX-0111)

GDAS Projects(2018GDASCX-0402)

出版年

2021
材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

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影响因子：0.657
ISSN：1005-0302
参考文献量24
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