Processing of a bulk metallic glass forming alloy based on industrial grade Zr

Heinrich, Jochen; Busch, Ralf; Nonnenmacher, Bernd

doi:10.1016/j.intermet.2012.02.011

Cited by 60 publications

(24 citation statements)

References 27 publications

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“…The enthalpy of crystallisation ∆ is obtained by integrating this signal. All samples show similar ∆ values, which are in the order of those for fully amorphous casted AMZ4 [28], substantiating the absence of crystalline precipitations within the detection limit. Furthermore, the diffractograms of the powder material (P1 and P2) and the manufactured LPBF-samples shown in Figure 9 reveal the typical broad halo of amorphous solids without any sharp reflexes, which would indicate crystalline structures.…”

Section: Resultssupporting

confidence: 67%

Mechanical Properties of Honeycomb Structured Zr-Based Bulk Metallic Glass Specimens Fabricated by Laser Powder Bed Fusion

Wegner

Frey

Stiglmair

et al. 2019

SAJIE

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Laser powder bed fusion of bulk metallic glasses offers great potential to overcome the existing restrictions of the geometrical size and complexity of bulk metallic glasses in conventional manufacturing routes due to high cooling rates during laser powder bed fusion. Bulk metallic glasses exhibit extraordinary strength, paired with high elasticity. Yet insights into additive manufactured bulk metallic glasses, especially of complex structures, are limited. The present article investigates the mechanical behaviour of Zrbased bulk metallic glasses, fabricated into honeycomb structures through laser powder bed fusion, by performing three-point bending tests. The results reveal a significant increase in specific strength, quasi-plasticity, and high elastic elongation. These structures thus offer great potential for lightweight applications and compliant mechanisms.

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Section: Resultssupporting

confidence: 67%

Mechanical Properties of Honeycomb Structured Zr-Based Bulk Metallic Glass Specimens Fabricated by Laser Powder Bed Fusion

Wegner

Frey

Stiglmair

et al. 2019

SAJIE

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“…[18,19] Bulk metallic glasses are defined as amorphous metals that have dimensions larger than 1 mm. In particular, new bulk metallic glasses that can be produced in large dimensions and quantities [20][21][22][23][24] are emerging as an important industrial and commercial material that is in several aspects superior to conventional Ti-, Al-, or Fe-based alloys. [25] Advanced metallic glasses, such as some Ti-Zr-based bulk metallic glasses, can be produced in dimensions of several centimeter diameters by casting.…”

Section: (Bulk) Metallic Glass Formationmentioning

confidence: 99%

Investigating Thermophysical Properties Under Microgravity: A Review

Mohr

Fecht

2020

Adv Eng Mater

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The advancement of metallic alloys is generally driven by alloy development, but furthermore requires the development of suitable production and processing routines. Almost all metallic products are formed through the solidification processing from the liquid phase. Although the solid-state is not influenced by gravitational effects, the processing of liquids is strongly impacted by earth's gravity-this influences interface phenomena, momentum, heat, and mass transport and, consequently, the solidification events. Experiments on liquid metallic alloys in microgravity avoid these influences and therefore allow benchmark experiments. This allows, for example, to obtain reliable thermophysical properties, improve the understanding of nucleation, phase selection, crystal growth, and other basic features of the liquid phase and the liquid-solid transition. The basic methodology, as well as a number of recent results obtained in the long-duration microgravity environment on board the international space station, are presented and discussed.

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“…BMGs were also considered due to the material's superb mechanical properties, hardness, corrosion resistance, and self-sharpening ability. [30][31][32][33] Due to the difficulties with printing these alloys in large dimensions and still maintaining the amorphous structure, [34][35][36] 80 mm diameter blades were printed from AMZ4 metallic glass (a ZrCuAlNb alloy) (Heraeus Additive Manufacturing, GmbH), as shown in Figure 2C. The AMZ4 BMG blade was represents the first ever structural BMG part that was printed and tested.…”

Section: Materials Selectionmentioning

confidence: 99%

Towards additively manufacturing excavating tools for future robotic space exploration

Hofmann

Bordeenithikasem

Tosi

et al. 2020

Engineering Reports

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Multiple metal alloys, that is, Ti‐6Al‐4 V, 316 L stainless steel, MS1 maraging steel, A2 tool steel, Inconel 625 with TiC and TiB2 reinforcement, and AMZ4 bulk metallic glass, were additively manufactured through laser powder bed fusion and tested as potential excavating tools for future robotic spacecraft landing on icy planetary bodies. Mechanical specific energy as a function of blade hardness was measured for each excavating tool as it trenched through soft and hard salt, where the salt is a regolith simulant for extraterrestrial ice. A2 tool steel, MS1 maraging steel, and bulk metallic glass cutting tools were shown to perform well in the experiments. A method for using the cutting tool as a sensor was also demonstrated.

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Processing of a bulk metallic glass forming alloy based on industrial grade Zr

Cited by 60 publications

References 27 publications

Mechanical Properties of Honeycomb Structured Zr-Based Bulk Metallic Glass Specimens Fabricated by Laser Powder Bed Fusion

Mechanical Properties of Honeycomb Structured Zr-Based Bulk Metallic Glass Specimens Fabricated by Laser Powder Bed Fusion

Investigating Thermophysical Properties Under Microgravity: A Review

Towards additively manufacturing excavating tools for future robotic space exploration

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