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Author:

Ge, Jinguo (Ge, Jinguo.) | Fan, Ningsong (Fan, Ningsong.) | Long, Yuhong (Long, Yuhong.) | Lin, Jian (Lin, Jian.) | Lei, Yongping (Lei, Yongping.) (Scholars:雷永平) | Yin, Shuo (Yin, Shuo.)

Indexed by:

EI Scopus SCIE

Abstract:

In this work, H13 buildups were produced through wire-arc additive manufacturing based on cold metal transfer technology. Four different deposition strategies were employed for the fabrication and the microstructural evolution and mechanical properties of the corresponding buildups were compared. A bimodal microstructure for all buildups produced in the overlap zone (OZ) and body zone (BZ), respectively, despite a mixture of lath-shaped martensites and blocky delta-ferrites in the OZ and a slightly coarser but still fine martensites in the BZ. The as-deposited mechanical properties were evidently superior to the properties of the base metal after annealing, but slightly inferior to that after quenching and tempering. Compared with the components with different deposition patterns between adjacent layers, the relatively enhanced hardness and wear-resistance properties were acquired for the ones with the same scanning strategies, being responsible for the smaller retained delta-ferrite size in the OZ and slightly refined martensites in the BZ. The deposition strategy had a negligible influence on the wear surface hardness, all decreasing gradually from the wear zone to the transient zone and finally keeping stable as a result of the locally martensitic evolution. As the in-situ thermal history was influenced by the deposition strategies, both of the microstructural distribution and mechanical performances were affected by the deposition strategies. Besides, the applied strategies, characterized by the different scanning directions between adjacent tracks, had a negligible influence on microstructures and mechanical properties following comparison with the counterparts with the different directions between adjacent layers. (C) 2020 Published by Elsevier B.V.

Keyword:

Mechanical performances Wire arc additive manufacturing Microstructural evolution Deposition strategy H13 blocky buildups

Author Community:

  • [ 1 ] [Ge, Jinguo]Guilin Univ Elect Technol, Sch Mech & Elect Engn, Guilin, Guangxi, Peoples R China
  • [ 2 ] [Long, Yuhong]Guilin Univ Elect Technol, Sch Mech & Elect Engn, Guilin, Guangxi, Peoples R China
  • [ 3 ] [Ge, Jinguo]Beijing Univ Technol, Sch Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Lin, Jian]Beijing Univ Technol, Sch Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Lei, Yongping]Beijing Univ Technol, Sch Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 6 ] [Ge, Jinguo]Univ Dublin, Trinity Coll Dublin, Dept Mech & Mfg Engn, Parsons Bldg, Dublin 2, Ireland
  • [ 7 ] [Fan, Ningsong]Univ Dublin, Trinity Coll Dublin, Dept Mech & Mfg Engn, Parsons Bldg, Dublin 2, Ireland
  • [ 8 ] [Yin, Shuo]Univ Dublin, Trinity Coll Dublin, Dept Mech & Mfg Engn, Parsons Bldg, Dublin 2, Ireland

Reprint Author's Address:

  • 雷永平

    [Ge, Jinguo]Guilin Univ Elect Technol, Sch Mech & Elect Engn, Guilin, Guangxi, Peoples R China;;[Lei, Yongping]Beijing Univ Technol, Sch Mat Sci & Engn, Beijing 100124, Peoples R China;;[Yin, Shuo]Univ Dublin, Trinity Coll Dublin, Dept Mech & Mfg Engn, Parsons Bldg, Dublin 2, Ireland

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Source :

JOURNAL OF ALLOYS AND COMPOUNDS

ISSN: 0925-8388

Year: 2021

Volume: 860

6 . 2 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:116

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 12

SCOPUS Cited Count: 16

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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