Thesis (Ph.D)-University of Birmingham, Dept of Metallurgy and Materials, 1989.
|Statement||by Yunjie Bi.|
The solidification sequences in aluminum containing 8 and 16 wt pct iron are described in terms of the formation of metastable and stable primary intermetallic phases. These alloys were studied in the chill-cast and splat-quenched conditions, and marked differences in microstructure due to the different cooling rates were observed. Contrary to previous work, it is proposed that the nm Cited by: consisted of mixed phases of α−Al 13 (Fe, V) 3 Si 1, and Al 8 Fe 4 Mm. Only Al 8 Fe 4 Mm phase was observed in the microstructure for x = 1, whereas quasi-crystalline Al 20 Fe 5 Mm phase was identified for x = 3. In this investigation, results of microstructural characterisation of the rapidly solidified Al-Fe-(V, Si) alloy powders are File Size: KB. The alloying additions of the AA introduce significant complexity into the evolution of the interaction between U Mo and Al-alloys. Diffusion couples of U 7Mo, U 10Mo, and U 12Mo vs. AA were annealed at °C for 24 h and at °C for 1, 5, and 20 by: 3. Nanostructured Al 93 Fe 3 Ti 2 Cr 2 alloys were prepared via mechanical alloying (MA), followed by extrusion to form bulk materials. The microstructure of the alloy was characterized using a variety of analytical instruments including X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM).
Microstructural Changes of Al-Cu Alloys Afte r Prolonged Annealing at Elevated Temperature Results of the measurements showed that anne aling of the alloys studied at K led to. Table Studies in the present Source Book Volumes that discuss the microstructural in ﬂ uences on the design, development, and properties of aerospace alloys Materials MicrostructuralAuthor: C. Suryanarayana. Microstructural modifications induced during spray deposition of Al–Si–Fe alloys and their mechanical properties Article (PDF Available) in Materials Science and Engineering A () An Overview of M d ‐Number Calculations as a Tool for Phase Stability Prediction in Ni‐Base Superalloys (Pages: ). Florian Pyczak; Haël Mughrabi.
melt-spun Al-Fe-Mo-V ribbon. 10 The MI phase was also called a ‘special amorphous phase’ by several authors. Although the special amorphous phase exhibited a selected area diffraction pattern (SADP) with diffuse aa Al-Fe-V bb Irregular-shaped aggregates Fig tructures of a fine powder particle of Al-Fe-V alloy. The microstructure and magnetic properties of alnico 8 alloys have been investigated in this paper. The alloys with nominal composition of xFeAlNbCoCuNiTi-xB (x= The detailed microstructure of cast aluminum alloys based on Al-7 pct Si pct Mg (A) has been investigated as a function of Fe and Cr content and solidification rate. It was found that the coarse β phase (FeSiAl5) platelets, which form during solidification of alloys containing Fe, are replaced by “Chinese script” α(bcc) [(Cr, Fe)4Si4Al13] dendritic particles when Cr is by: ELSEVIER Materials Science and Engineering A () ~'lnllilliS A Microstructural stability of rapidly quenched A1-Fe-Mo alloys K. Loucif, G. Vigier, P. Merle G.E.M.P.P.M., B~t. INSA, Villeurbanne cedex, France Received 16 November ; in revised form 21 April Abstract We investigated the microstructural stability of Cited by: 3.