Microstructural evolution and thermal stability of Fe–Zr metastable alloys developed by mechanical alloying followed by annealing

2016 ◽  
Vol 96 (25) ◽  
pp. 2649-2670 ◽  
Author(s):  
S. Sooraj ◽  
V. M. Suntharavel Muthaiah ◽  
P. C. Kang ◽  
Carl C. Koch ◽  
Suhrit Mula
Keyword(s):  
Thermal Stability ◽  
Mechanical Alloying ◽  
Microstructural Evolution ◽  
Metastable Alloys ◽  
Thermal Stability Of

Synthesis of Fe-rich Fe–Al nanocrystalline solid solutions using ball milling

1999 ◽  
Vol 14 (5) ◽  
pp. 1760-1770 ◽  
Author(s):  
H. G. Jiang ◽  
H. M. Hu ◽  
E. J. Lavernia
Keyword(s):  
Heat Treatment ◽  
Activation Energy ◽  
Thermal Stability ◽  
Intermetallic Compound ◽  
Ball Milling ◽  
Microstructural Evolution ◽  
Solid Solutions ◽  
Al Alloys ◽  
Time Intervals ◽  
Thermal Stability Of

The synthesis of nanocrystalline Fe, Fe–4 wt% Al, and Fe–10 wt% Al solid solutions by SPEX ball milling has been studied. The microstructural evolution during ball milling, as well as subsequent heat treatment, has been characterized. The results demonstrate that ball milling promotes the formation of αFe–4 wt% Al and αFe–10 wt% Al solid solutions by reducing the activation energy of these alloys and generating thermal energy during this process. For Fe–10 wt% Al powders milled for various time intervals up to approximately 20 min, the FeAl intermetallic compound is formed. For alloys annealed at temperatures ranging from 600 to 1000 °C, the addition of 10 wt% Al to Fe significantly enhances the thermal stability of the nanocrystalline Fe–Al alloys. Interestingly, the addition of Al within the range of 4–10 wt% seems to have little effect on the thermal stability of these alloys annealed under the same conditions. Also, the thermal stability improves for alloys milled in air as opposed to those processed using Ar.

Boron-dependent microstructural evolution, thermal stability, and crystallization of mechanical alloying derived SiBCN

2018 ◽  
Vol 101 (7) ◽  
pp. 3205-3221 ◽  
Author(s):  
Daxin Li ◽  
Zhihua Yang ◽  
Dechang Jia ◽  
Delong Cai ◽  
Shengjin Wang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Mechanical Alloying ◽  
Microstructural Evolution

Structure and thermal stability of biodegradable Mg–Zn–Ca based amorphous alloys synthesized by mechanical alloying

2011 ◽  
Vol 176 (20) ◽  
pp. 1637-1643 ◽  
Author(s):  
Moni Kanchan Datta ◽  
Da-Tren Chou ◽  
Daeho Hong ◽  
Partha Saha ◽  
Sung Jae Chung ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Mechanical Alloying ◽  
Amorphous Alloys ◽  
Thermal Stability Of

Thermal Stability of Amorphous Ti- Cu- Ni- Sn Prepared by Mechanical Alloying

2007 ◽  
Vol 534-536 ◽  
pp. 233-236 ◽  
Author(s):  
N.T.H. Oanh ◽  
Pyuck Pa Choi ◽  
Ji Soon Kim ◽  
Dae Hwan Kwon ◽  
Young Soon Kwon
Keyword(s):  
Thermal Stability ◽  
Differential Scanning Calorimetry ◽  
Mechanical Alloying ◽  
Amorphous Alloys ◽  
High Energy ◽  
Scanning Calorimetry ◽  
Thermal Stability Of

Ti-Cu-Ni-Sn quaternary amorphous alloys of Ti50Cu32Ni15Sn3, Ti50Cu25Ni20Sn5, and Ti50Cu23Ni20Sn7 composition were prepared by mechanical alloying in a planetary high-energy ballmill (AGO-2). The amorphization of all three alloys was found to set in after milling at 300rpm speed for 2h. A complete amorphization was observed for Ti50Cu32Ni15Sn3 and Ti50Cu25Ni20Sn5 after 30h and 20h of milling, respectively. Differential scanning calorimetry analyses revealed that the thermal stability increased in the order of Ti50Cu32Ni15Sn3, Ti50Cu25Ni20Sn5, and Ti50Cu23Ni20Sn7.

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