Mössbauer spectrometry of near equiatomic Fe–Cr alloys: Phase separation at high temperature?

Mössbauer spectrometry of near equiatomic Fe–Cr alloys: Influence of preparation method

“…Additional HMFDs of alloys, either cold-rolled or mechanically thinned, annealed for different times at 1000 • C and at 1185 • C is shown in Ref. [7].…”

“…On the basis of microstructures observed by transmission electron microscopy, Ustinovshikov and Pushkarev claimed that the latter high-temperature region is actually a domain in which a tendency towards separation exists [6]. As discussed in a companion paper [7], the initial purpose of the present work was to check for the existence of that phenomenon in near equiatomic alloys by Mössbauer spectrometry at room temperature (RT) [4,[8][9][10][11][12][13][14]. As explained below, the scope of the work was enlarged to study the effects of the preparation method of alloys and of plastic deformation on HMFDs.…”

A New Paradigm for Metallic Alloys in Materials Science

“…The second attempt was made when the Fe 51 Cr 49 alloy quenched from the temperatures of 900˚C -1185˚C was investigated [19] One should bear in mind that this range of temperatures is somewhat below the interval of phase separation (1200˚C -1400˚C). Using the Mossbauer spectroscopy method, the authors [19] expected to observe that the partial gamma-resonance peak corresponding to pure iron would grow with an increase of alloy decomposition. However, their expectations did not come true.…”