Production of Cu-Mn-Al Heusler Alloy Wire by the In-Rotating-Water-Spinning Process and Its Properties

芳樹, 小野; 逸雄, 大中; 勇, 山内

doi:10.2320/jinstmet1952.51.8_755

Cited by 7 publications

(2 citation statements)

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“…Ordered alloys, which are often thought to be brittle, become ductile if they have this bamboo structure. 53,54) The Taylor process61) can also produce fine wires with glass coating directly from melt, though the coating must be removed if it is not necessary for use. The cooling rate can be 105 K/s when the diameter is less than about 20 ~tm.…”

Section: Wire Spinningmentioning

confidence: 99%

State of the art of research and development in rapid solidification technologies in Japan.

Ohnaka

1987

ISIJ Int.

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Rapid Solidification Technologies Development in in Japan* By Itsuo OHNAKA* * Synopsis An overview is made on recent research and development in rapid solidification technologies in Japan. It includes basic researches on such as metastable phase diagrams, structure and properties of rapidly solidified materials, and various types of processing to produce powders, ribbons, wires, and sheets thinner than 10 mm. The promise of the processings and problems to be solved are also discussed.

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Section: Wire Spinningmentioning

confidence: 99%

State of the art of research and development in rapid solidification technologies in Japan.

Ohnaka

1987

ISIJ Int.

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“…For non-SMA alloys, detailed analyses of INROWASP processing parameters on fiber quality and various morphological characteristics are available in the literature [3][4][5][6][7][8]. The processing parameters, specifically including the ejection pressure, nozzle size, wheel speed, and ejection temperature, operate collectively to produce a corresponding cast fiber diameter and microstructure.…”

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Melt-cast microfibers of Cu-based shape memory alloy adopt a favorable texture for superelasticity

Tunçer

Schuh

2016

Scripta Materialia

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Continuous production of shape memory alloy (SMA) fibers and microfibers is a non-trivial task due to the challenges associated with their undeformed memory and, for many copper-based SMAs, brittleness in non-engineered forms. Here we demonstrate the direct continuous casting of super-meter-scale Cu-based SMA microfibers into a desirable oligocrystalline microstructure that is not brittle. The melt-casting process used here develops a favorable texture as well, leading to large superelastic strains (above 8 %), beyond what is typical for non-single-crystal SMAs. Cu-based shape memory alloys (SMAs) generally perform poorly when they are polycrystalline, due to intergranular cracking associated with their high elastic anisotropy and transformation mismatch strains. However, the same brittle SMAs can exhibit excellent shape memory and superelasticity, as well as fatigue properties that approach those of single crystals, when they are produced in fine dimensions and with a specific grain microstructure: an oligocrystalline or "bamboo" grain structure where the grain boundaries lay almost perpendicular to the fiber axis, reducing relative grain boundary area [1,2]. These materials could be used in a number of novel applications, such as smart textiles, if they could be manufactured in large quantities via a continuous process.

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Grain Growth of Fe–Al Wire Fabricated by the Liquid Metal Spinning Method

Takeda

Kurihara

Fujie

et al. 1998

phys. stat. sol. (a)

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Production of Cu-Mn-Al Heusler Alloy Wire by the In-Rotating-Water-Spinning Process and Its Properties

Cited by 7 publications

References 0 publications

State of the art of research and development in rapid solidification technologies in Japan.

State of the art of research and development in rapid solidification technologies in Japan.

Melt-cast microfibers of Cu-based shape memory alloy adopt a favorable texture for superelasticity

Grain Growth of Fe–Al Wire Fabricated by the Liquid Metal Spinning Method

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