Laser Forming of Thin Film Metallic Glass

Otsu, Masaaki; Ide, Yuki; Sakùrai, Jun; Hata, Seiichi; Takashima, Kazuki

doi:10.1299/jmmp.3.387

Cited by 9 publications

(3 citation statements)

References 8 publications

(12 reference statements)

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“…The review will focus on laser processing of bulk metallic glasses although laser processing of thin metallic glass samples has also been conducted. In particular, Zheng et al (2013) studied the dynamic fracture behaviour of Fe-based metallic glass having used lasers to produce a shock load and Otsu et al (2009) utilised YAG lasers to bend a thin sample of palladium based metallic glass without crystallisation. Finally, concluding remarks concerning the future of laser processing of bulk metallic glasses are provided in the last section.…”

Section: (Adapted From Anantharaman 1984)mentioning

confidence: 99%

Laser processing of bulk metallic glass: A review

Williams

Lavery

2017

Journal of Materials Processing Technology

140

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The emergence of bulk metallic glasses and their identification as versatile advanced engineering materials with attractive properties has led to a surge in research efforts to investigate processing methods, which can be used either to synthesise new BMG alloys or to shape BMG workpieces into final components with specific geometries. Among such technologies, the number of studies focussing on the laser processing of BMGs has gradually increased over the past decade. For this reason, a comprehensive summary of the state-of-the-art in this particular field of research is presented in this review. The reported studies are categorised into the different laser applications that have been proposed so far by the research community, namely the welding, cladding, additive layer manufacturing, micro machining and microstructure modification of BMG substrates. Due to the attractive properties of BMGs stemming from their amorphous nature, results are also presented, when available, concerning the effect of laser irradiation on the generation of crystalline precipitates during processing and the effect of these changes on the resulting material properties. This review has identified a number of gaps in the knowledge surrounding the laser processing of bulk metallic glasses. Understanding the fundamental interaction of laser energy with multi-component alloys will be necessary, as the development of lasers continues and the amount of available A c c e p t e d M a n u s c r i p t bulk metallic glasses increases. In particular, the crystallisation kinetics of bulk metallic glasses during laser irradiation needs to be understood to aid in the development and optimisation of processes such as welding and cladding. This could be helped by created an accurate simulation model to predict the onset of crystallisation although this is not a minor challenge, developing a complete temperature field model during laser irradiation is a complex task when considering vaporisation, plasma effects as well as chemical composition changes in the material. Besides, there is also the issue of variations in material properties as the temperature increases, particularly for BMGs whose temperature dependent properties are not well-documented. The research into the additive layer manufacturing of bulk metallic glass should continue to grow. Parametric effects need to be addressed to complete the optimisation of this process. Further investigations of the resulting crystallisation processes upon repeated melting and solidification should also aid in the process being able to be controlled more effectively. Finally, the use of laser processing of bulk metallic glass for specific application needs to be investigated further.

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Section: (Adapted From Anantharaman 1984)mentioning

confidence: 99%

Laser processing of bulk metallic glass: A review

Williams

Lavery

2017

Journal of Materials Processing Technology

140

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“…5) TFMGs can be deformed into various shapes at least beyond the region of plastic deformation. 6) Moreover amorphous HFSMAs can be deformed in the SCLR, and after crystallization, SMA MEMS devices with complex three-dimensional structures were fabricated. 7,8) Binary Ti-Ni thin-film amorphous alloys are not metallic glasses.…”

Section: Introductionmentioning

confidence: 99%

Combinatorial search for Ti–Ni–Hf high formable shape memory alloys

Inoue

Yamazaki

Oka

et al. 2022

Jpn. J. Appl. Phys.

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In this study, we searched for Ti–Ni–Hf high formable shape memory alloys (HFSMAs) using combinatorial methods. By adding Hf to Ti–Ni SMAs, the potential that Ti-Ni SMAs become metallic glasses. For efficient material search, the glass transition temperature was evaluated through combinatorial measurement of electrical resistance during crystallization. From the results, we searched for Ti–Ni–Hf HFSMAs, which undergo glass transition in the amorphous state. Ni-rich Ti–Ni–Hf thin film amorphous alloys with more than 10 at.% Hf content became thin film metallic glasses (TFMGs), whereas Ni-poor samples did not. Further, we evaluated the effect of annealing temperature on the martensitic transformation temperature of Ti–Ni–Hf SMAs using combinatorial methods. From the results, we measured the reverse transformation start temperature As at 368–404 K, and it varied with the annealing temperature and Hf composition.

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“…µ Ð ² Ü 80 , Kumagai [9] »ÉÎÐ ° Ni «Ý« Ì Ni-Nb-Pt µ Ð AE . ´ÃÎ Â µ Ð ² ÜÄÉ ÎÎ ¶µ Ð « [10] ¡ÎÐ « µ Ð AE [11] ¡Î Ðµ Ð [12] ¡ÎÄÑ µ Ð ¬« [13] Î µ Ð [14] .…”

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CRYSTALLIZATION BEHAVIOR OF ANNEALEDZr ₅₅ Cu3oAl1oNi ₅ BULK METALLIC GLASSDURING PULSED LASER REMELTING

Gao

Xin²,

Hu³

et al. 2013

Acta Metallurgica Sinica

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The crystallization behavior of annealed metallic glasses during pulsed laser remelting was investigated in this work. The as-casted Zr 55 Cu 30 Al 10 Ni 5 bulk metallic glasses were annealed at 390, 430, 530, 792 and 902 £ separately. And then these annealed alloys were remelted by pulsed laser. The experiment results show that the alloys annealed at 390 and 430 £ were still metallic glasses, and their crystallization behavior during remelting is similar to the remelting of metallic glass without annealing treatment. The specimens annealed at 530, 792 and 902 £ were completely crystallized.After remelting, the molten pools of these specimens were amorphous. For the specimens annealed at 530 and 792 £, there was no obvious epitaxial growth at the bottom of molten pools. For the specimens annealed at 902 £, there was little primary phase epitaxial growth at bottom of molten pool after one time laser remelting while without epitaxial growth after 11 times laser remelting. The epitaxial growth was caused by the area reserved the composition distribution of CuZr 2 primary phase during laser remelting. So it is hard to obtain epitaxial growth during laser remelting for Zr 55 Cu 30 Al 10 Ni 5 *

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Laser Forming of Thin Film Metallic Glass

Cited by 9 publications

References 8 publications

Laser processing of bulk metallic glass: A review

Laser processing of bulk metallic glass: A review

Combinatorial search for Ti–Ni–Hf high formable shape memory alloys

CRYSTALLIZATION BEHAVIOR OF ANNEALEDZr ₅₅ Cu3oAl1oNi ₅ BULK METALLIC GLASSDURING PULSED LASER REMELTING

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Laser Forming of Thin Film Metallic Glass

Cited by 9 publications

References 8 publications

Laser processing of bulk metallic glass: A review

Laser processing of bulk metallic glass: A review

Combinatorial search for Ti–Ni–Hf high formable shape memory alloys

CRYSTALLIZATION BEHAVIOR OF ANNEALEDZr 55 Cu3oAl1oNi 5 BULK METALLIC GLASSDURING PULSED LASER REMELTING

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CRYSTALLIZATION BEHAVIOR OF ANNEALEDZr ₅₅ Cu3oAl1oNi ₅ BULK METALLIC GLASSDURING PULSED LASER REMELTING