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Author:

Qi, P. (Qi, P..) | Li, B. (Li, B..) | Wei, W. (Wei, W..) | Chen, J. (Chen, J..) | Wang, T. (Wang, T..) | Huang, H. (Huang, H..) | Gao, K. (Gao, K..) | Wen, S. (Wen, S..) | Wu, X. (Wu, X..) | Rong, L. (Rong, L..) | Wu, W. (Wu, W..) | Zhou, L. (Zhou, L..) | Nie, Z. (Nie, Z..)

Indexed by:

EI Scopus SCIE

Abstract:

This work aims to study the influence of laser power on the microstructural evolution of novel Ti–6Zr–5Fe alloy fabricated by selective laser melting (SLM). The microstructural evolutions of all top surfaces in SLM Ti–6Zr–5Fe alloy samples fabricated from 80 W to 140 W were investigated in depth. The microstructure in SLM Ti–6Zr–5Fe alloy includes α phase and β phase, the size of the β phase and α phase increases with the increase of laser power due to the decrease of cooling rate. Meanwhile, the melt pool overlapping width increases with the increase of melt pool width due to the increase of laser power. The increase of melt pool overlapping causes the re-heating or re-melting of SLM Ti–6Zr–5Fe alloy. Moreover, as the laser power increases from 80 W to 140 W, the change of the melt pool greatly influenced the size, morphology, crystallographic orientation of the β phase, and their distributions. The increase of laser power causes adequate precipitation of the α phase, which improves the microhardness from 466 HV to 533 HV. The laser power can effectively regulate and control the microstructure and microhardness of SLM Ti alloys. © 2023

Keyword:

Selective laser melting Ti–6Zr–5Fe alloy Microstructure Laser power

Author Community:

  • [ 1 ] [Qi P.]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
  • [ 2 ] [Li B.]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
  • [ 3 ] [Wei W.]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
  • [ 4 ] [Chen J.]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
  • [ 5 ] [Chen J.]Beijing Engineering Research Center of 3D Printing for Digital Medical Health, Beijing University of Technology, Beijing, 100124, China
  • [ 6 ] [Wang T.]Chinalco Science and Technology Institute Co., LTD, Beijing, 102209, China
  • [ 7 ] [Huang H.]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
  • [ 8 ] [Gao K.]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
  • [ 9 ] [Wen S.]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
  • [ 10 ] [Wu X.]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
  • [ 11 ] [Rong L.]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
  • [ 12 ] [Wu W.]Northwest Institute for Nonferrous Metal Research, Xi'an, 710016, China
  • [ 13 ] [Zhou L.]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
  • [ 14 ] [Zhou L.]Beijing Engineering Research Center of 3D Printing for Digital Medical Health, Beijing University of Technology, Beijing, 100124, China
  • [ 15 ] [Zhou L.]Northwest Institute for Nonferrous Metal Research, Xi'an, 710016, China
  • [ 16 ] [Nie Z.]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China

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Source :

Journal of Materials Research and Technology

ISSN: 2238-7854

Year: 2023

Volume: 24

Page: 5108-5118

6 . 4 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 9

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