Rights statement: This is the author’s version of a work that was accepted for publication in Journal of Alloys and Compounds. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Alloys and Compounds, 894, 2021 DOI: 10.1016/j.jallcom.2021.162525
Accepted author manuscript, 3.23 MB, PDF document
Available under license: CC BY-NC-ND
Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Influence of the microstructure on mechanical properties of SLM additive manufacturing Fe-based bulk metallic glasses
AU - Jiang, Q.
AU - Zhang, P.
AU - Tan, J.
AU - Yu, Z.
AU - Tian, Y.
AU - Ma, S.
AU - Wu, D.
N1 - This is the author’s version of a work that was accepted for publication in Journal of Alloys and Compounds. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Alloys and Compounds, 894, 2021 DOI: 10.1016/j.jallcom.2021.162525
PY - 2022/2/15
Y1 - 2022/2/15
N2 - Fe-based bulk metallic glass (BMG)(FeCrMoWMnSiBC) was produced by selective laser melting (SLM) successfully in this study. The best parameters were determined through extensive experiments. The relative density (95%) and amorphous rate (95.47%) samples were obtained by this parameter. The analysis of the microstructure reveals that the crystalline phases in the heat affected zone (HAZ) are mainly α-Fe and M23(CB)6 phases, and co-exist with the amorphous phases. The Heat treatment is employed to study the crystallization behavior of amorphous phases. The α-Fe phase, as the primary phase, grows into a submicron crystal phase under the action of multiple thermal cycles. Nanoindentation test results show that the hardness of the amorphous phase is higher than that of the nano-grain region, and the hardness of the nanocrystalline region is higher than that of the submicron-grain region. The free volume content is different and the amorphous phase is not uniform due to the complex thermal cycle. The maximum hardness occurs in the amorphous phase with 22.6 GPa.
AB - Fe-based bulk metallic glass (BMG)(FeCrMoWMnSiBC) was produced by selective laser melting (SLM) successfully in this study. The best parameters were determined through extensive experiments. The relative density (95%) and amorphous rate (95.47%) samples were obtained by this parameter. The analysis of the microstructure reveals that the crystalline phases in the heat affected zone (HAZ) are mainly α-Fe and M23(CB)6 phases, and co-exist with the amorphous phases. The Heat treatment is employed to study the crystallization behavior of amorphous phases. The α-Fe phase, as the primary phase, grows into a submicron crystal phase under the action of multiple thermal cycles. Nanoindentation test results show that the hardness of the amorphous phase is higher than that of the nano-grain region, and the hardness of the nanocrystalline region is higher than that of the submicron-grain region. The free volume content is different and the amorphous phase is not uniform due to the complex thermal cycle. The maximum hardness occurs in the amorphous phase with 22.6 GPa.
KW - Annealing
KW - Bulk metallic glass
KW - Crystallization
KW - Selective laser melting
KW - Chromium compounds
KW - Hardness
KW - Heat affected zone
KW - Iron compounds
KW - Lead compounds
KW - Manganese compounds
KW - Melting
KW - Metallic glass
KW - Microstructure
KW - Nanocrystals
KW - Silicon compounds
KW - Thermal cycling
KW - Amorphous phasis
KW - Crystalline phasis
KW - Crystallization behavior
KW - Fe-based
KW - Heat-affected zones
KW - Primary phase
KW - Relative density
KW - α-Fe
KW - Glass
U2 - 10.1016/j.jallcom.2021.162525
DO - 10.1016/j.jallcom.2021.162525
M3 - Journal article
VL - 894
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
M1 - 162525
ER -