G-phase strengthened iron alloys by design

Structural Phase Transformation and Phonon Softening in Iron-Based Alloys

The interrelation of Invar and Martensite in iron-based alloys like Fe3Ni is discussed on the basis of ab initio calculations for different crystal structures. Inelastic neutron scattering and ultrasonic experiments have shown that a soft transverse phonon mode in [110] direction acts as a precursor in the close packed fcc phase of these systems. Unfortunately there are no experimental results ...

Stress Induced Phase Transition of Iron-Rhodium Alloys

Stress-induced phase transitions(B2-Llo, B2-fcc) on an FeRh alloy were investigated with X-ray diffraction (XRD) and transmission electron microscopy(TEM). An Fe-SO.Sat%Rh alloy was rolled to 80pm thickness, and annealed at 1370K for 173ks. Annealed sample sheets were cold rolled at various rolling rates, and changes of the sample alloy on the phase state were investigated with XRD. The L lo ph...

modeling loss data by phase-type distribution

بیمه گران همیشه بابت خسارات بیمه نامه های تحت پوشش خود نگران بوده و روش هایی را جستجو می کنند که بتوانند داده های خسارات گذشته را با هدف اتخاذ یک تصمیم بهینه مدل بندی نمایند. در این پژوهش توزیع های فیزتایپ در مدل بندی داده های خسارات معرفی شده که شامل استنباط آماری مربوطه و استفاده از الگوریتم em در برآورد پارامترهای توزیع است. در پایان امکان استفاده از این توزیع در مدل بندی داده های گروه بندی ...

Sensing of Iron Ions by Solid Phase Spectrophotometry

A new sensitive and selective spectrophotometric method for the determination of iron using a PVC membrane containing bathophenanthroline and dioctylphethalate as the solid phase extraction medium is investigated. Fe(II) in an aqueous sample solution is trapped on the membrane with an anion species, picrate ion and forms a complex with bathophenanthroline. The absorbance of the red-orange m...

" Catalytic Reactions on Iron / Cobalt and Iron / Nickel Alloys