Rapid microstructure modification of laser powder-bed fused superalloy IN718 using high-density pulsed electric current

被引：3

作者：

Liu, Chang ^{[1
]}

Gu, Shaojie ^{[1
]}

Yan, Xinming ^{[1
]}

Yoon, Sungmin ^{[1
]}

Kimura, Yasuhiro ^{[1
]}

Toku, Yuhki ^{[1
]}

Ju, Yang ^{[1
]}

机构：

[1] Nagoya Univ, Grad Sch Engn, Dept Micronano Mech Sci & Engn, Nagoya, Aichi 4648603, Japan

来源：

MATERIALS TODAY COMMUNICATIONS | 2023年 / 36卷

基金：

日本科学技术振兴机构; 日本学术振兴会;

关键词：

Laser powder-bed fusion; Ni-based superalloy; High-density pulsed electric current; Grain modification; Element diffusion; INCONEL; 718; EVOLUTION; METALS; ALLOY;

D O I：

10.1016/j.mtcomm.2023.106892

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel high-density pulsed electric current (HDPEC) method is developed to modify the grain-scale micro-structure of laser powder-bed fused Ni-based superalloy IN718, which has not been reported in other studies. Rapid micro-residual stress relief and micro-segregation alleviation were achieved without significant grain coarsening which is common in conventional heat treatment. This technique can be an alternative energy-saving post-treatment method for additively manufactured metallic materials, enabling rapid and efficient annealing and solution treatment.

引用

页数：9

共 28 条

[21] Rapid anisotropy recovery in deformed FCC metals by high-density pulsed electric current treatment
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Yoon, Sungmin
Wang, Zizheng
Kimura, Yasuhiro
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Ju, Yang
VACUUM, 2022, 197
[22] Effects of base plate temperature on microstructure evolution and high-temperature mechanical properties of IN718 processed by laser powder bed fusion using simulation and experiment
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Ishisako, Shohei
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[23] Effects of base plate temperature on microstructure evolution and high-temperature mechanical properties of IN718 processed by laser powder bed fusion using simulation and experiment
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[24] Phase Field Simulations of Microstructure Evolution in IN718 Using a Surrogate Ni-Fe-Nb Alloy during Laser Powder Bed Fusion
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Gorti, Sarma B.
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Acharya, Ranadip
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METALS, 2019, 9 (01)
[25] Effect of high-density pulsed electric current on residual stress relief and microstructural modification of cold-bent commercially pure titanium
Li, Shaoli
Gu, Shaojie
Yoon, Sungmin
Kimura, Yasuhiro
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MATERIALS TODAY COMMUNICATIONS, 2023, 37
[26] Overcoming the trade-off between strength and ductility in austenitic stainless steel using a high-density pulsed electric current
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Kimura, Yasuhiro
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MATERIALIA, 2023, 32
[27] Fabrication of ex-situ TiN reinforced IN718 composites using laser powder bed fusion (L-PBF): Experimental characterization and high-fidelity numerical simulations
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Tripathi, Pragya
Sharma, Shashank
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CERAMICS INTERNATIONAL, 2023, 49 (09) : 14408 - 14425
[28] Laser powder bed fusion parameters to produce high-density Ti-53%Nb alloy using irregularly shaped powder from hydride-dehydride (HDH) process
Guzman, Jhoan
Nobre, Rafael de Moura
Nunes, Enzo R.
Bayerlein, D. L.
Falcao, R. B.
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JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2021, 10 : 1372 - 1381

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