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3 edition of Undercooled and rapidly quenched Ni-Mo alloys found in the catalog.

Undercooled and rapidly quenched Ni-Mo alloys

S. N. Tewari

Undercooled and rapidly quenched Ni-Mo alloys

  • 359 Want to read
  • 27 Currently reading

Published by National Aeronautics and Space Administration, Lewis Research Center in [Cleveland, Ohio .
Written in English

    Subjects:
  • Nickel alloys.,
  • Molybdenum alloys.,
  • Melt spinning.,
  • Molybdenum alloys.,
  • Nickel alloys.,
  • Rapid quenching (metallurgy)

  • Edition Notes

    Microfiche. [Washington, D.C. : National Aeronautics and Space Administration], 1986. 1 microfiche.

    StatementS. N. Tewari and T. K. Glasgow.
    SeriesNASA technical memorandum -- 87257.
    ContributionsGlasgow, T. K., Lewis Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL16151255M

    Crystal nucleation and growth in undercooled melts of metals and alloys A editor of six books and co-editor of Advanced Engineering Materials. He educated more than 30 PhD students and acted as supervisor of more than 20 diploma and was a member of the International Advisory Committee of the Int. Conf. on Rapidly Quenched and Metastable.   Alloys of TiVCr with 1, 2, 4 and 8 wt.% Er additions were prepared by arc melt spinning. The microstructures of these β-Ti alloys display a distribution of dispersoids and submicron grains. The solid solubility of erbium in the alloy has evidently been increased from less than to about 2 wt.%, as a result of the rapid quenching.


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Undercooled and rapidly quenched Ni-Mo alloys by S. N. Tewari Download PDF EPUB FB2

Pages The undercooling produced by the rapid quenching of several metals and alloys were measured as a function of cooling rate.

The results matched well with the calculated kinetic undercooling based on the previously reported data of the crystal growth rate as a function of bath undercooling. Alloys were undercooled in both electromagnetic levitation and differential thermal analysis equipment.

The rate of recalescence depended upon the degree of initial undercooling and the nature (faceted or nonfaceted) of the primary nucleating : S.

Tewari and T. Glasgow. The book focuses on amorphous and crystalline metals formed by rapid quenching from the melt. The selection first covers the scope and trends of developments in rapid solidification technology, rapid solidification, and undercooling of liquid metals by rapid quenching Book Edition: 1.

This practical resource presents a manifold approach to both amorphous and crystalline rapidly solidified metallic alloys.;Written by over 30 internationally acclaimed specialists in their respective fields, Rapidly Solidified Alloys: surveys Undercooled and rapidly quenched Ni-Mo alloys book and growth studies in undercooled melts; examines various processes for the production of rapidly solidified alloys; discusses the compaction of amorphous alloys; describes surface remelting treatments for the rapid Cited by: Ni-Mo alloys of compositions ranging from pure Ni to Ni at.

percent Mo were rapidly solidified by Chill Block Melt Spinning in vacuum and were examined by. Ni%Mo, Ni%Mo hypoeutectic alloys and Ni%Mo eutectic alloy have been rapidly solidified with different droplet sizes by containerless processing in a drop tube. For Ni%Mo hypoeutectic alloy, which corresponds to the maximum solid solubility of nickel phase, the solidification microstructure is characterized by nickel dendrite plus (Ni+NiMo) Cited by: 6.

Purchase Rapidly Quenched Materials Undercooled and rapidly quenched Ni-Mo alloys book 1st Edition. Print Book & E-Book. ISBNBook Edition: 1. The papers in this two-volume set cover a wide range of topics concerning the production, processing and properties of rapidly quenched melts.

Undercooled and rapidly quenched Ni-Mo alloys book techniques for the production of non-equilibrium materials are also discussed, including Undercooled and rapidly quenched Ni-Mo alloys book state amorphization by rapid interdiffusion and thermobaric quenching.

; 18(Suppl. 1) Rapidly Quenched Ni 45 Fe 5 Mn 40 Sn 10 Heusler Alloys orthorhombic martensite with lattice parameter a= nm, b= nm and c= nm (Figure 2b, as-cast in c). The SEM micrographs of Ni 45 Fe 5 Mn 40 Sn 10 alloys are shown in Figure 3.

The as-cast alloy (Figure 3a) exhibits a typical. Microstructure of Undercooled Pb-Sn Alloys Walman Benício de Castroa, Manuel de Lucena Maiaa, Claudio Shyinti Kiminamib*, Claudemiro Bolfarinib aDepartamento de Engenharia Mecânica, UFPB, Campus II bDepartamento de Engenharia de Materiais, UFSCar Melt undercooling opens Undercooled and rapidly quenched Ni-Mo alloys book solidification pathways for non-equilibrium phases and non-con.

The reports on Fe-based alloys and Ni-based alloys suggest that solute addition plays a vital role in the growth Undercooled and rapidly quenched Ni-Mo alloys book of the alloys in undercooled condition [15, 16].

In Fe-based alloys, Co. Droplets of molten alloys of composition Ge12Sb88, AgInSbTe, Ge4Sb1Te5, and Ge2Sb2Te5, used for optical data storage, surrounded by a molten dehydrated B2O3 flux were undercooled Cited by: Abstract.

The objective of this work was to investigate the fraction of as-cast crystals in an otherwise glassy matrix as function of cooling rate and solidification time in rapidly quenched Fe 40 Ni 40 B 20 alloys. The ribbons were produced by planar flow casting, figure 1, with a continuous variation of thickness in the range between 20 and : W.

Hug, P. Sahm. This volume details the principles underlying rapid solidification processing, material structure and properties, and their applications.

This practical resource presents a manifold approach to both amorphous and crystalline rapidly solidified metallic alloys.;Written by over 30 internationally accl.

Undercooled and rapidly quenched Ni-Mo alloys. [S N Tewari; T K Glasgow; Lewis Research Center.] Home. WorldCat Home About WorldCat Help. Search. Search for Library Items Search for Lists Search for Contacts Search for a Library. Create Book. This volume details the principles underlying rapid solidification processing, material structure and properties, and their applications.

This practical resource presents a manifold approach to both amorphous and crystalline rapidly solidified metallic alloys.;Written by over 30 internationally acclaimed specialists in their respective fields, Rapidly Solidified Alloys Pages:   Rapidly Quenched Metals, Volume I covers the proceedings of the Fifth International Conference on Rapidly Quenched Metals, held in Wurzburg, Germany on SeptemberThe book focuses on amorphous and crystalline metals formed by rapid quenching from the : Elsevier Science.

Solidification behavior of LaFexSix alloys was investigated using rapidly quenching and. Phase formation and structure in rapidly quenched LaFexSix alloys has been investigated by means of power X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM).

The results have shown that phase is a peritectic phase. The solidification behavior of LaFexSix alloys Author: Zhong Qi Dong, Jun Suo Li, Ti Wen Han, Jin Chen. Rapid solidification and microstructure evolution of deeply undercooled bulk concentrated Ni% and Co% alloys are strictly and systematically : Xiaolong Xu, Hua Hou, Feng Liu.

Therefore, compression tests and also tension/compression tests of undercooled aluminum alloy EN-AW A (AlSi1MgMn) were performed in a quenching and deformation dilatometer.

Samples have been solution annealed and quenched in the dilatometer to varying temperatures with varying cooling by: 7. The NiZr peritectic alloy was undercooled by electromagnetic levitation method up to K. The measured dendritic growth velocity shows a steep acceleration at a critical undercooling Cited by: 7.

Abstract A grain size gradient was naturally prepared through recrystallization in rapidly solidified Ni80Cu20 alloys quenched before recalescence. The fine grains on the surface of quenched Author: Xiaolong Xu, Xiaolong Xu, Yuhong Zhao, Hua Hou, Feng Liu.

The book focuses on amorphous and crystalline metals formed by rapid quenching from the melt. The selection first covers the scope and trends of developments in rapid solidification technology, rapid solidification, and undercooling of liquid metals by rapid : Elsevier Science.

Hypoeutectic, eutectic, and hypereutectic nickel-molybdenum alloys were rapidly solidified by both bulk undercooling and melt spinning techniques. Alloys were undercooled in both electromagnetic levitation and differential thermal analysis equipment. Rahul M R, Sumanta Samal, G.

Phanikumar, "Phase evolution and kinetics in undercooled FeCoNiCuX alloys" in the 16th International Conference on Rapidly Quenched and Metastable Materials (RQ16), 27 August - 01 SeptemberLeoben, Austria. Bulk samples of Cu 84 Co 16 composition were undercooled and rapidly solidified using the electromagnetic levitation technique under a static magnetic field of 2 T.

A droplet-shaped microstructure was frozen in due to metastable phase separation in the undercooled liquid. A singular droplet size distribution was determined for the minority Co-rich phase, which differed.

@article{osti_, title = {Calculations of the structure and properties of rapidly quenched NI/ZR alloys.}, author = {Cherne, F J and Baskes, M I and Schwarz, R B and Srivilliputhur, S G}, abstractNote = {Using molecular dynamics and a modified embedded atom potential developed by our group we studied the diffusivity and viscosity of molten Nil-XZrX alloys as a function of.

Crystal growth due to recrystallization in rapidly solidified microstructures was experimentally observed. Deeply undercooled Ni–Cu alloy melts were quenched before rapid solidification by Ga–In liquid alloy.

After the quenching, partially recrystallized microstructures were obtained and further investigated by means of electron backscattering diffraction and Cited by: 4. Rapidly quenched metals are the subject of an increasing research effort, spurred on both by advancements in metal processing techniques that have made commercial utilization of these metals feasible and by the recent discoveries of unique and potentially useful properties of these materials.

Among the processes that have been perfected is "splat cooling," in which a liquid. ture of the rapidly quenched Heusler alloys where single Fig. X-ray diffraction patterns for Ni 2 MnGa rapidly quenched ribbon 20 40 60 80 0 y 24 (g) Ni 2 rod Fig.

saturation magnetization which is demonstrated by the X-ray diffraction patterns for Ni 2 MnGa rapidly. Rapidly Solidified Alloys è un libro di Liebermann edito da Crc Press a maggio - EAN puoi acquistarlo sul sitola grande libreria online. Evidence for the liquid nature of the synthesized particles.

Room temperature liquid metals particles, like EGaIn, have been shown to form different complex structures/shapes due to their non-Newtonian nat43,44,45,To demonstrate that the synthesized undercooled particles have a liquid core, we compared; i) capillary driven self-assembly and Cited by: Grain refinement has a very important impact on the microstructures and properties of materials [1–8].Since the grain refinement phenomenon was first detected by Walker [] in rapid solidification of highly undercooled nickel melt, the mechanism of rapid solidification induced grain refinement has attracted much more far, a number of mechanisms have been proposed to.

Chapter 1 Introduction During the past three decades rapid quenching methods have been successfully applied to produce metastable solids from the liquid state. A great variety of metastable materials have been discovered with physical properties, which make them suitable as new high-performance materials in mechanical and electrical engineering.

MICROSTRUCTURE AND MAGNETIC PROPERTIES OF RAPIDLY QUENCHED (NdxGax)80Fe20(x=0,5,10, and 15 at%) ALLOYS Introduction Sample Preparation and Experimental Investigations Binary Nd80Fe20 Rapdily Quenched Alloys Ternary (NdxGax)80Fe20(x=5,10, and 15) Rapdily Quenched Alloys Conclusions PART IV: Solidification.

phase analysis of rapidly quenched magnesium AM60B and AE44 alloys A.J. Gesing a, J.H. Sokolowski b,*, P.C. Marchwica b, curve and microchemical phase analysis of rapidly quenched magnesium AM60B and AE44 alloys, Journal of Achievements in Materials and Manufacturing Engineering 58/2 () We review the studies on the thermophysical properties of undercooled metals and alloys by molecular simulations in recent years.

The simulation methods of melting temperature, enthalpy, specific heat, surface tension, diffusion coefficient and viscosity are introduced and the simulated results are summarized.

By comparing the experimental results and various theoretical Cited by: - rapidly solidified alloys • Boron, B, rather than carbon is a primary alloying element for amorphous ferrous alloys • Properties: (a) absence of grain boundaries – easy magnetized materials (b) extremely fine structure – exceptional strength and toughness Compositions (wt.

%) B Si Cr Ni Mo P 20 10 28 6 10 6 40 6 14 •Some Amorphous. This extensive materials selection and application book is the first of its kind. It describes a comprehensive treatment of all forms of high-temperature corrosion problems encountered in industry, especially gas turbine and aerospace, heat treating, mineral and metallurgical processing, ceramic, electronic and glass manufacturing, automotive pulp and paper waste Cited by: Get this from a library.

Rapidly Solidified Alloys: Processes-Structures-Properties-Applications. [Liebermann] -- "This volume details the principles underlying rapid solidification processing, material structure and properties, and their applications.

This practical resource presents a manifold approach to both. Crystal nucleation and pdf in pdf melts of metals and alloys 4 th International Conference on Chemical Engineering In highly undercooled melts dendrites propagate very rapidly.

A high-speed camera is used to record the advancement of the solidification front. He is author and editor of six books and co-editor of Advanced.Smithells Metals Reference Book: Edition 8 - Ebook written by William F. Gale, Terry C. Totemeier.

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