Magnetic and structural studies of mechanically alloyed (Fe50Co50)62Nb8B30 powder mixtures

2009 ◽  
Vol 482 (1-2) ◽  
pp. 86-89 ◽  
Author(s):  
S. Alleg ◽  
S. Azzaza ◽  
R. Bensalem ◽  
J.J. Suñol ◽  
S. Khene ◽  
...  
2020 ◽  
Vol 12 (4) ◽  
pp. 04012-1-04012-5
Author(s):  
S. Khan ◽  
◽  
A. Vyas ◽  
S. Rajan ◽  
S. Jani ◽  
...  

2016 ◽  
Vol 29 (6) ◽  
pp. 1583-1592 ◽  
Author(s):  
S. Azzaza ◽  
F. Hadef ◽  
R. Chater ◽  
H. Abbas ◽  
N. Zerniz ◽  
...  

2007 ◽  
Vol 23 ◽  
pp. 123-126
Author(s):  
Radu L. Orban ◽  
Mariana Lucaci

This paper investigates the effect of Fe, Cr and B additions, in small proportions, as alloying elements in Ni3Al with the purpose to reduce its intrinsic fragility and extrinsic embrittlement and to enhance, in the same time, its mechanical properties. It represents a development of some previous research works of the authors, proving that Ni3Al-Fe-Cr-B alloys obtained by reactive synthesis (SHS) starting from Mechanically Alloyed powder mixtures have superior both room temperature tensile strength and ductility, and compression ones at temperatures up to 800 °C, than pure Ni3Al. These create premises for their using as superalloys substitutes.


2012 ◽  
Vol 194 ◽  
pp. 187-193 ◽  
Author(s):  
J.M. Loureiro ◽  
Benilde F.O. Costa ◽  
Gerard Le Caër ◽  
Bernard Malaman

Ternary alloys, (Fe50−x/2Co50−x/2)Snx(x ≤ 33 at.%), are prepared by mechanical alloying from powder mixtures of the three elements. As-milled alloys are studied by X-ray diffraction and 57Fe and 119Sn Mössbauer spectroscopy. The solubility of Sn in near-equiatomic bcc FeCo is increased from ~0.5 at. % at equilibrium to ~20 at.% in the used milling conditions. The average 119Sn hyperfine magnetic field at room temperature is larger, for any x, than the corresponding fields in mechanically alloyed Fe-Sn solid solutions.


2010 ◽  
Vol 322 (24) ◽  
pp. 3932-3937 ◽  
Author(s):  
A. Behvandi ◽  
H. Shokrollahi ◽  
B. Chitsazan ◽  
M. Ghaffari

1996 ◽  
Vol 205-207 ◽  
pp. 527-530 ◽  
Author(s):  
T. Nasu ◽  
M. Sakurai ◽  
K. Suzuki ◽  
C.C. Koch ◽  
A.M. Edwards ◽  
...  

2006 ◽  
Vol 38 (3) ◽  
pp. 231-238 ◽  
Author(s):  
M. Chmielewski ◽  
K. Pietrzak ◽  
W. Włosiński

Continuous progress in modern science and industry depends on the availability of new effective devices and materials. New generation materials should be characterized by a specified combination of properties which sometimes exclude one another. Al2O3-Cr composites belong to this group of materials. This study is concerned with the effect of the method of preparation of the starting powders upon the properties of sintered Al2O3-Cr composites. The composites were produced using powder mixtures with various volumetric shares of the starting powders (from 25 to 75vol.%). The mixtures were prepared by conventional mechanical mixing in a ball-mill or by mechanical alloying in a high-energy mill of the attritor type. It has been found that with mechanically alloyed powders the Al2O3-Cr composites have better bending strength, hardness and frictional wear resistance.


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