Peer Review #3 of "Relative contribution of ecological and biological attributes in the fine-grain structure of ant-plant networks (v0.2)"

Several features of the metallurgy of superconducting composites of Nb-Ti in a Cu matrix are of interest. The cold drawing strains are generally of order 8-10, producing a very fine grain structure of diameter 30-50 nm. Heat treatments of as little as 3 hours at 300 C (∼ 0.27 TM) produce a thin (1-3 nm) Ti-rich grain boundary film, the precipitate later growing out at triple points to 50-100 nm dia. Further plastic deformation of these larger a-Ti precipitates by strains of 3-4 produces an elongated ribbon morphology (of order 3 x 50 nm in transverse section) and it is the thickness and separation of these precipitates which are believed to control the superconducting properties. The present paper describes initial attempts to put our understanding of the metallurgy of these heavily cold-worked composites on a quantitative basis. The composite studied was fabricated in our own laboratory, using six intermediate heat treatments. This process enabled very high critical current density (Jc) values to be obtained. Samples were cut from the composite at many processing stages and a report of the structure of a number of these samples is made here.

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CONTINUOUS-CAST 45-12 DUCTILE IRON

Alloy Digest ◽

10.31399/asm.ad.ci0058 ◽

1989 ◽

Vol 38 (4) ◽

Keyword(s):

Continuous Casting ◽

Ductile Iron ◽

Heat Treating ◽

Grain Structure ◽

Continuous Cast ◽

Good Surface ◽

Fine Grain ◽

High Speeds ◽

Good Surface Finish ◽

Iron Grade

Abstract Ductile Iron grade 45-12 produced by continuous casting has consistent density and fine grain structure. It is the softest of the regular grades of ductile iron and it machines at high speeds with good surface finish. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties. It also includes information on heat treating, machining, and joining. Filing Code: CI-58. Producer or source: Federal Bronze Products Inc..

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KETOS

Alloy Digest ◽

10.31399/asm.ad.ts0096 ◽

1960 ◽

Vol 9 (8) ◽

Keyword(s):

Physical Properties ◽

Tensile Properties ◽

Tool Steel ◽

Heat Treating ◽

Grain Structure ◽

Steel Company ◽

Fine Grain ◽

Crucible Steel

Abstract KETOS is an oil-hardening non-deforming tool steel having deep hardening qualities with a fine grain structure. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as deformation. It also includes information on forming, heat treating, and machining. Filing Code: TS-96. Producer or source: Crucible Steel Company of America.

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Ionic Conductivities of Doped CeO2 Thin Films as Related to Their Microstructure

MRS Proceedings ◽

10.1557/proc-411-277 ◽

1995 ◽

Vol 411 ◽

Cited By ~ 5

Author(s):

Chunyan Tian ◽

Siu-Wai Chan

Keyword(s):

Thin Films ◽

Electrical Properties ◽

Ionic Conductivities ◽

Dielectric Constants ◽

Grain Structure ◽

X Ray Diffraction ◽

Fine Grain ◽

Brick Layer Model ◽

Columnar Grain ◽

Beam Deposition

ABSTRACTThin films of 4% Y2O3 doped CeO2/Pd film/(001)LaA103 with a very low pinhole density were successfully prepared using electron-beam deposition technique. The microstructure of the films was characterized by x-ray diffraction and the electrical properties were studied as a function of temperature with AC impedance spectroscopy. A brick layer model was adopted to correlate the electrical properties to the microstructure of the films, which can be simplified as either a series or a parallel equivalent circuit associated with either a fine grain or a columnar grain structure, respectively. The conductivities of the films fell between the conductivities derived from the two circuit models, suggesting that the films are of a mixed fine grain and columnar grain structure. The measured dielectric constants of the films were found smaller than that of the bulk.

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Magnetic properties of MnZn ferrite with ultra-fine grain structure

Journal of Magnetism and Magnetic Materials ◽

10.1016/s0304-8853(02)00858-2 ◽

2003 ◽

Vol 254-255 ◽

pp. 538-540 ◽

Cited By ~ 7

Author(s):

J Moulin ◽

Y Champion ◽

J.M Grenèche ◽

F Mazaleyrat

Keyword(s):

Magnetic Properties ◽

Grain Structure ◽

Mnzn Ferrite ◽

Fine Grain

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The Possibility of Manufacturing Long-Length Metal Products with Ultra-Fine Grain Structure by Combination of Strain Effects

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.685.487 ◽

2016 ◽

Vol 685 ◽

pp. 487-491 ◽

Cited By ~ 3

Author(s):

Mikhail Chukin ◽

Marina Polyakova ◽

Alexandr Gulin ◽

Olga Nikitenko

Keyword(s):

Steel Wire ◽

Continuous Method ◽

Grain Structure ◽

Strain Effect ◽

Strain Effects ◽

Fine Grain ◽

Wide Range ◽

Processing Modes ◽

Efficiency Estimation ◽

Metal Products

It is shown that combination of strain effects leads to possessing the ultra-fine grain structure in carbon wire. The continuous method of wire deformation nanostructuring was developed on the basis of simultaneous applying of tension deformation by drawing, bending deformation when going through the system of rolls and torsional deformation on a continuously moving wire. One of the main advantages of the developed method is that various hardware devices and tools already applied for steel wire production can be used to implement this method thus simplifying its introduction to the current industrial equipment. The efficiency estimation of the developed continuous method of deformation nanostructuring was carried out using carbon wire with different carbon content. It is shown that the mechanical properties of the wire after combination of different kinds of strain can vary over a wide range. This method makes it possible to choose such modes of strain effect, which can provide the necessary combination of strength and ductile properties of carbon wire depending on its further processing modes and application.

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