The Physical and Mechanical Metallurgy of NiAl

Noebe, Ronald D.; Bowman, Randy R.; Nathal, M. V.

doi:10.1007/978-1-4613-1215-4_7

Cited by 63 publications

(22 citation statements)

References 192 publications

(229 reference statements)

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“…This has been shown for powder-extruded NiAl samples of the same stoichiometry, purity and texture (Fig. 10) [26]. However, the situation is unclear for melt-spun-and cast-extruded samples of different origin.…”

Section: Prospect Of Ductilisation By Grain Refinementmentioning

confidence: 66%

“…How are conditions (i) and ( Condition (i): Deformation of NiAl single crystals of different orientations have shown that {110}<100> is the primary slip system at all temperatures, while secondary slip is by {110}<111> and {110}<110> below and above a critical temperature T C , respectively [1]. The critical resolved shear stress for {110}<110> drastically decreases above T C .…”

Section: Prospect Of Ductilisation By Grain Refinementmentioning

confidence: 99%

“…Thus, similar to other intermetallics, it is a great challenge to ductilise NiAl. Attempts to reduce the resistance for secondary slip by alloying in order to fulfill the von Mises criterion have not been successful [1]. Another way to approach this problem is by changing the grain structure and texture on purpose.…”

Section: Introductionmentioning

confidence: 99%

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Grain refinement and texture formation in torsion deformed NiAl

Klöden

Rybacki

Oertel

et al. 2007

International Journal of Materials Research

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Torsion at elevated temperatures and pressures was used to severely deform the intermetallic compound NiAl. The microstructure and texture as a function of shear strain were investigated by orientation imaging microscopy and diffraction of synchrotron radiation, respectively. The results show that at high shear strains a steady state grain structure and texture develops by continuous dynamic recrystallisation. The lowest grain size achieved is in the micron range, the main texture component is {110}<100>. It is concluded that high-strain torsion may open new possibilities in terms of grain refinement, texture formation and ductilisation of NiAl.

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Section: Prospect Of Ductilisation By Grain Refinementmentioning

confidence: 66%

Section: Prospect Of Ductilisation By Grain Refinementmentioning

confidence: 99%

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Grain refinement and texture formation in torsion deformed NiAl

Klöden

Rybacki

Oertel

et al. 2007

International Journal of Materials Research

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show abstract

“…Due to attractive functional properties the intermetallic based materials are promising candidates for use in marine and aerospace propulsion engineering, power engineering, gas/oil transportation, as heavy-current electric contacts, structural engineering materials etc. [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…One of possible approach to increase the properties is forming heterogeneous intermetallic materials and MMCs by macro and micro alloying and incorporate metallurgicallly stable, hard and fine ceramic particles. In the case the best service parameters can be realized by uniform, regular, spatially ordered structure with controllable size/ shape of structural units [2][3][4][5][6] and a sufficiently high volume fraction of hard component. Another promising applicable field for intermetallic based materials is manufacturing multi-purpose catalysts [7,8].…”

Section: Introductionmentioning

confidence: 99%

Cast Intermetallic Alloys and Composites Based on Them by Combined Centrifugal Casting—SHS Process

Санин¹,

Andreev²,

Икорников³

et al. 2013

OJMetal

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This work aims to establish a scientific and engineering background in the production of cast multicomponent alloys and metal-martix composite (MMCs) via Self-Propagating High Temperature Synthesis (SHS, combustion synthesis) which is a novel process technique regarding fast and low-cost production ability. We carried out the search for reactive systems and process parameters that would ensure preparation of cast multicomponent materials in a single process. The principles and methods of the SHS thermite-type reaction processes have been investigated under high-gravity values applying loads up to 1000 g with special centrifuge set-up. In this way we expected to improve the yield of target product, remove gaseous byproducts, diminish the grain size in the product, and make product composition more uniform. The obtained results can be expected to make a theoretical background for industrial-scale manufacturing of heat-resistant intermetallic alloys, master alloys, catalysts, MMCs etc.

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Nasschemische Synthese vonβ-Nickelaluminid NiAl

et al. 2002

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Ein hochfeines Pulver aus β‐Nickelaluminid NiAl erhält man durch Umsetzung von [Ni(cod)2] (cod=Cycloocta‐1,5‐dien) mit AlEt3 in Toluol bei Raumtemperatur und 5–10 MPa H2‐Druck sowie anschließendes Abdestillieren des Lösungsmittels, Nachhydrieren (0.1–5 MPa) und Tempern (200°C) [Gl. (a)]. Diese neuartige, nasschemische Synthesemethode für Aluminide lässt sich auf Ni3Al (α‐Nickelaluminid) und ternäre Aluminidpulver wie GaNiAl, FeNiAl und CeNiAl übertragen.

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The Physical and Mechanical Metallurgy of NiAl

Cited by 63 publications

References 192 publications

Grain refinement and texture formation in torsion deformed NiAl

Grain refinement and texture formation in torsion deformed NiAl

Cast Intermetallic Alloys and Composites Based on Them by Combined Centrifugal Casting—SHS Process

Nasschemische Synthese vonβ-Nickelaluminid NiAl

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