scholarly journals The Effect of Process Control Agent on the Oxidation of Nanocrystalline Mechanically Alloyed AlCoCrFeMnNi Powders

2018 ◽  
Vol 24 (S1) ◽  
pp. 2268-2269
Author(s):  
M.A. Ruiz-Esparza-Rodriguez ◽  
C.G. Garay-Reyes ◽  
I. Estrada-Guel ◽  
J.M. Mendoza-Duarte ◽  
M.C. Maldonado-Orozco ◽  
...  
Keyword(s):  
Process Control ◽  
Control Agent ◽  
Process Control Agent ◽  
Mechanically Alloyed

Influence of Process Control Agent and Al Concentration on Synthesis and Phase Stability of a Mechanically Alloyed AlxCoCrFeMnNi High-Entropy Alloy

2021 ◽  
pp. 160770
Author(s):  
M.A. Ruiz-Esparza-Rodriguez ◽  
C.G. Garay-Reyes ◽  
I. Estrada-Guel ◽  
J.L. Hernández-Rivera ◽  
J.J. Cruz-Rivera ◽  
...  
Keyword(s):  
Process Control ◽  
Phase Stability ◽  
Control Agent ◽  
High Entropy Alloy ◽  
Process Control Agent ◽  
Mechanically Alloyed ◽  
High Entropy

scholarly journals Effects of Process Control Agent Amount, Milling Time, and Annealing Heat Treatment on the Microstructure of AlCrCuFeNi High-Entropy Alloy Synthesized through Mechanical Alloying

Metals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1493
Author(s):  
Negar Yazdani ◽  
Mohammad Toroghinejad ◽  
Ali Shabani ◽  
Pasquale Cavaliere
Keyword(s):  
Solid Solution ◽  
Process Control ◽  
Mechanical Alloying ◽  
Milling Time ◽  
Control Agent ◽  
High Entropy Alloy ◽  
Process Control Agent ◽  
Mechanically Alloyed ◽  
X Ray ◽  
High Entropy

This study was conducted to investigate the characteristics of the AlCrCuFeNi high-entropy alloy (HEA) synthesized through mechanical alloying (MA). In addition, effects of Process Control Agent (PCA) amount and milling time were investigated using X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). The results indicated that the synthesized AlCrCuFeNi alloy is a dual phase (FCC + BCC) HEA and the formation of the phases is strongly affected by the PCA amount. A high amount of PCA postponed the alloying process and prevented solid solution formation. Furthermore, with an increase in the PCA amount, lattice strain decreased, crystallite size increased, and the morphology of the mechanically alloyed particles changed from spherical to a plate-like shape. Additionally, investigation of thermal properties and annealing behavior at different temperatures revealed no phase transformation up to 400 °C; however, the amount of the phases changed. By increasing the temperature to 600 °C, a sigma phase (σ) and a B2-ordered solid solution formed; moreover, at 800 °C, the FCC phase decomposed into two different FCC phases.

Process control agent effect on the structural and magnetic properties of mechanically alloyed Fe(Al) disordered system

2021 ◽  
pp. 168246
Author(s):  
Marvin Montoya Rangel ◽  
Juan Marcos Marín Ramírez ◽  
Liliana Tirado Mejía ◽  
Milton Humberto Medina Barreto ◽  
Beatriz Cruz Muñoz
Keyword(s):  
Magnetic Properties ◽  
Process Control ◽  
Control Agent ◽  
Process Control Agent ◽  
Mechanically Alloyed ◽  
Disordered System ◽  
Structural And Magnetic Properties

Effect of process control agent on alloying and mechanical behavior of L21 phase Ni–Ti–Al alloys

2019 ◽  
Vol 740-741 ◽  
pp. 130-136 ◽  
Author(s):  
Jun Shi ◽  
Aofeng Zheng ◽  
Zehui Lin ◽  
Rong Chen ◽  
Jugong Zheng ◽  
...  
Keyword(s):  
Process Control ◽  
Mechanical Behavior ◽  
Control Agent ◽  
Al Alloys ◽  
Process Control Agent

ROLE OF PROCESS CONTROL AGENT ON MECHANICAL ALLOYING OF NANO STRUCTURED TiAl-BASED ALLOY

2008 ◽  
Vol 22 (18n19) ◽  
pp. 2933-2938 ◽  
Author(s):  
H. BAHMANPOUR ◽  
S. HESHMATI-MANESH
Keyword(s):  
Process Control ◽  
Stearic Acid ◽  
Milled Powder ◽  
High Energy ◽  
Control Agent ◽  
X Ray Diffraction ◽  
Process Control Agent ◽  
Crystallite Sizes ◽  
Energy Ball ◽  
Milled Powders

High energy ball milling was performed on a mixture of titanium and aluminum elemental powders with a composition of Ti -48(at.%) Al . Stearic acid was added to this powder mixture as a process control agent (PCA) to study its effect on the microstructure evolution and crystallite size of the milled powder after various milling times. Phase compositions and morphology of the milled powders were evaluated using X-ray diffraction and scanning electron microscopy. Crystallite sizes of milled powders were determined by Cauchy-Gaussian approach using XRD profiles. It was shown that addition of 1wt.% of stearic acid not only minimizes the adhesion of milling product to the vial and balls, but also reduces its crystallite sizes. It has also a marked effect on the morphology of the final product.

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