• No results found

nanocrystalline alloys

Soft Magnetic Nanocrystalline Alloys for High Temperature Applications

Soft Magnetic Nanocrystalline Alloys for High Temperature Applications

... magnetic alloys for high temper- ature applications, the composition of nanocrystalline alloys is constrained to Co-based or (Fe, Co)-based alloys, owing to the high Curie temperature of Co ...

6

Thermal Stability of Nanocrystalline Alloys by Solute Additions and A Thermodynamic Modeling.

Thermal Stability of Nanocrystalline Alloys by Solute Additions and A Thermodynamic Modeling.

... homologous temperatures. The second scenario is the thermodynamic mechanism based on a strategy in which the grain boundary driving force is lowered. If the excess free energy due to grain boundaries is decreased, the ...

199

Hydriding and dehydriding kinetics of melt spun nanocrystalline Mg20Ni10 xCux (x = 0 4) alloys

Hydriding and dehydriding kinetics of melt spun nanocrystalline Mg20Ni10 xCux (x = 0 4) alloys

... the alloys absorbed more than 95% of their hydrogen capacities within the first 5 ...in nanocrystalline alloys enhance the kinetics of hydrogen absorption/ de- ...

8

Thermal Stabilization and Mechanical Properties of Nanocrystalline Fe-Ni-Zr Alloys.

Thermal Stabilization and Mechanical Properties of Nanocrystalline Fe-Ni-Zr Alloys.

... As-milled alloys have lattice parameters larger than those of equilibrium alloys due to vacancy complexes and dislocations induced by plastic deformation during mechanical milling [12, ...based ...

173

Gaseous and Electrochemical Hydrogen Storage Properties of Nanocrystalline Mg2Ni Type Alloys Prepared by Melt Spinning

Gaseous and Electrochemical Hydrogen Storage Properties of Nanocrystalline Mg2Ni Type Alloys Prepared by Melt Spinning

... Mg-based alloys exhibit very poor hydrogen absorbing and desorbing stability on account of the evanishment of the metastable structures formed by ball milling during the multiple hydrogen ab- sorbing and desorbing ...

10

Random Anisotropy Model for Nanocrystalline Soft Magnetic Alloys with Grain Size Distribution

Random Anisotropy Model for Nanocrystalline Soft Magnetic Alloys with Grain Size Distribution

... the nanocrystalline soft magnetic alloys contain a consid- erable amount of an amorphous ...actual nanocrystalline alloys, the contributions of the induced anisotropies to magnetization ...

9

Structure relaxation and crystallization of the CoW CoNiW NiW electrodeposited alloys

Structure relaxation and crystallization of the CoW CoNiW NiW electrodeposited alloys

... deposited nanocrystalline alloys of the CoW-CoNiW-NiW systems under low-temperature heating was investigated by means of high-resolution transmission electron microscopy (HRTEM), high-angle annular ...

8

Effect of Nanocrystalline Structure on the Corrosion of a Fe20Cr Alloy

Effect of Nanocrystalline Structure on the Corrosion of a Fe20Cr Alloy

... of nanocrystalline Fe20Cr alloy can be attributed to increased Cr content of the passive film formed on nanocrystalline alloys which is evident from both SIMS and XPS analysis in the current ...of ...

16

Thermodynamic Assessment of Fe B P Cu Nanocrystalline Soft Magnetic Alloys for Their Crystallizations from Amorphous Phase

Thermodynamic Assessment of Fe B P Cu Nanocrystalline Soft Magnetic Alloys for Their Crystallizations from Amorphous Phase

... line alloys due to their high Fe content and a fine and homogeneous structure in nanometer scale with grain size ³ 15 ...magnetic nanocrystalline alloys, such as FINEMET comprising Fe-Nb-Si-B-Cu 8) ...

7

Shear Band Deformation in Amorphous Alloys and Composites

Shear Band Deformation in Amorphous Alloys and Composites

... (e.g., nanocrystalline alloys) or those without a long-range crys- talline order ...phous alloys and some of nanocrystalline alloys (and some of ultra-fine grained materials), the ...

5

Novel Electroforming Process for Bulk Nanocrystalline Ni W Alloys with Minimizing W Concentration Gradient and Fluctuation

Novel Electroforming Process for Bulk Nanocrystalline Ni W Alloys with Minimizing W Concentration Gradient and Fluctuation

... The electrolyte presented in the Ref. 13) was mainly optimized for the nearly amorphous electroplating with good gross and corrosion resistance suitable to the plating industry, not for the nanocrystalline bulk ...

9

The Corrosion Behaviors of Amorphous, Nanocrystalline and Crystalline Ni-W Alloys Coating

The Corrosion Behaviors of Amorphous, Nanocrystalline and Crystalline Ni-W Alloys Coating

... the nanocrystalline, amorphous and crystalline Ni-W coatings with uniformed and compacted structure were successfully prepared by electrodeposited under ultrasonic-assisted direct current with different current ...

7

Electrodeposition of Nanocrystalline Ni-Mo Alloys from Alkaline Glycinate Solutions

Electrodeposition of Nanocrystalline Ni-Mo Alloys from Alkaline Glycinate Solutions

... composition of the coating layer was determined using EDX. The crystallinity of electrodeposits was examined using XRD, whereas, the morphology and topography were investigated using SEM and AFM, respectively. The ...

13

The Anneal Hardening and Deformation Softening Behaviors of Nanocrystalline Cu Zn Alloys

The Anneal Hardening and Deformation Softening Behaviors of Nanocrystalline Cu Zn Alloys

... density, d is the cell or sub-grain size and λ is the twin spac- ing. So, the increased strength after annealing cannot be ex- plained by the nearly invariable dislocation density, grain size and twin density. The ...

5

Corrosion of Newly Manufactured Nanocrystalline Al and Two of its Alloys in stagnant 4.0% NaCl Solutions

Corrosion of Newly Manufactured Nanocrystalline Al and Two of its Alloys in stagnant 4.0% NaCl Solutions

... Metal aluminum-based matrix composites have been considered as an outstanding substitute material because of its high corrosion resistance, excellent thermal conductivity, good mechanical properties, and acceptable ...

13

Hydrogen Absorption and Electrochemical Properties of As Quenched Nanocrystalline  Mg20Ni10 – xCux (x = 0 – 4) Alloys

Hydrogen Absorption and Electrochemical Properties of As Quenched Nanocrystalline Mg20Ni10 – xCux (x = 0 – 4) Alloys

... a nanocrystalline structure and is very suitable for mass-production of nanocrystalline Mg-bas- ed ...that nanocrystalline al- loys produced by rapid quenching could have excellent hydriding ...

9

Formation of Nanocrystalline Globules and Metallic Glass in Fe70 xCuxZr10B20 (x=0–70) Alloys

Formation of Nanocrystalline Globules and Metallic Glass in Fe70 xCuxZr10B20 (x=0–70) Alloys

... 60 and 70) alloys were prepared from Fe, Cu, Zr, B and ferro- boron by arc melting under purified Ar atmosphere on a water-cooled copper substrate. Rapidly quenched ribbons with a cross section of about 2:0 mm 0:02 ...

10

Superior Strength in Ultrafine Grained Materials Produced by SPD Processing

Superior Strength in Ultrafine Grained Materials Produced by SPD Processing

... a nanocrystalline structure with a grain size less than 100 nm in a number of metals and alloys by means of HPT, 19,20) for SPD processing by ECAP and HPT it is typical to form ultrafine-grained structures ...

6

A non–destructive compositional analysis of thin surface films formed on W–xTa alloys by angle resolved X–ray photoelectron spectroscopy

A non–destructive compositional analysis of thin surface films formed on W–xTa alloys by angle resolved X–ray photoelectron spectroscopy

... W–xTa alloys was investigated using a non − destructive angle resolved X − ray photoelectron spectroscopy (angle resolved XPS) techniques in this ...W–xTA alloys using angle resolved XPS analyses revealed ...

9

Synthesis and Deformation Behavior of Nanocrystalline Copper Alloys.

Synthesis and Deformation Behavior of Nanocrystalline Copper Alloys.

... powder mass ratio was 10:1. The ball milling was carried out at both liquid nitrogen temperature and room temperature under a purified argon atmosphere (<1 p.p.m. oxygen). During cryo milling a specially designed ...

241

Show all 2878 documents...

Related subjects