Initiation of the Explosive Crystallization Process in Amorphous Alloys of the Fe-Zr System by Pulse Laser Treatment

2019 ◽  
Vol 11 (2) ◽  
pp. 02004-1-02004-5
Author(s):  
T. L. Tsaregradskaya ◽  
◽  
Yu. A. Kunitskyi ◽  
О. О. Kаlenyk ◽  
I. V. Plyushchay ◽  
...  
Keyword(s):  
Laser Treatment ◽  
Pulse Laser ◽  
Amorphous Alloys ◽  
Crystallization Process ◽  
Explosive Crystallization

Influence of Alloying Additions on Enhancement of Soft Magnetic Properties Effect and Crystallization in FeXSiB (X=Cu, V, Co, Zr, Nb) Amorphous Alloys

2007 ◽  
Vol 130 ◽  
pp. 171-174 ◽  
Author(s):  
Z. Stokłosa ◽  
G. Badura ◽  
P. Kwapuliński ◽  
Józef Rasek ◽  
G. Haneczok ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Crystallization Process ◽  
Annealing Temperature ◽  
Magnetic Measurements ◽  
X Ray Diffraction ◽  
Soft Magnetic ◽  
X Ray ◽  
Second Stage ◽  
Transmission Electron

The crystallization and optimization of magnetic properties effects in FeXSiB (X=Cu, V, Co, Zr, Nb) amorphous alloys were studied by applying X-ray diffraction methods, high resolution transmission electron microscopy (HRTEM), resistometric and magnetic measurements. The temperatures of the first and the second stage of crystallization, the 1h optimization annealing temperature and the Curie temperature were determined for different amorphous alloys. Activation energies of crystallization process were obtained by applying the Kissinger method. The influence of alloy additions on optimization effect and crystallization processes was carefully examined.

Dynamic measurements of temperature in the process of pulse laser treatment of materials

2000 ◽  
Vol 36 (2) ◽  
pp. 274-279
Author(s):  
A. V. Paustovskii ◽  
Yu. V. Gubin ◽  
Yu. A. Kunitskii
Keyword(s):  
Laser Treatment ◽  
Pulse Laser ◽  
Dynamic Measurements

Investigation of Crystallization in an Amorphous Cu-Based Alloy by X-Ray

2008 ◽  
Vol 589 ◽  
pp. 131-136
Author(s):  
E. Nagy ◽  
Dóra Janovszky ◽  
Mária Svéda ◽  
Kinga Tomolya ◽  
L.K. Varga ◽  
...  
Keyword(s):  
Amorphous Alloys ◽  
Crystallization Process ◽  
Reference Data ◽  
Diffraction Method ◽  
Research Field ◽  
High Price ◽  
Ti Alloy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Significant Research

Recently one of the most significant research-field in the development of amorphous alloys is the research of the Cu-based amorphous alloys. The Zr-based alloys developed earlier can be replaced by the newly developed Cu-based alloys as the high price of the Zr-based alloys limits their utilization in spite of their favourable properties. Production of Cu-based alloys having the same or more favourite properties than Zr-based alloys is cheaper and this fact can promote their increasing utilization. Cu-Zr-Ti and Cu-Hf-Ti alloy systems – they are Cu-based alloys – have excellent mechanical properties. In this paper investigations of crystallization of amorphous Cu44,25Zr36Ag14,75Ti5 powder produced by ball milling (these processes have not been investigated yet according to the reference data) are described. In the course of investigation of the crystallization process, samples were heated to a temperature of investigation by means of a DSC equipment and the developed state was frozen by chilling. The investigation of the developed structure and to identify the phases formed during heat treatment, X-ray diffraction method was used.

Crystallization process of nickel-based amorphous alloys

2015 ◽  
pp. 36-41 ◽  
Author(s):  
G. N. Elmanov ◽  
◽  
E. A. Ivanitskaya ◽  
E. S. Zharikov ◽  
◽  
...  
Keyword(s):  
Amorphous Alloys ◽  
Crystallization Process

Uniform and Directed Crystallization of Deposited a­Si on Glass Substrates at Linear Velocities Of 1 to 20 Meters Per Second

1981 ◽  
Vol 4 ◽  
Author(s):  
D. Bensahel ◽  
G. Auvert ◽  
V. T. Nguyen ◽  
G. A. Rozgonyi
Keyword(s):  
Phase Boundary ◽  
Laser Power ◽  
Crystallization Process ◽  
Solid Phase ◽  
Crystallization Front ◽  
Continuous Furnace ◽  
Directed Crystallization ◽  
Glass Substrates ◽  
Explosive Crystallization ◽  
Scan Speed

ABSTRACTIt has been found that careful control of the laser power and scan speed will convert deposited a­Si into continuous lines of uniformly crystallized silicon. Two solid phase “explosive” crystallization front velocities of 1000 cm/sec and 1400 cm/sec have been experimentally determined by matching the laser scan velocity with the runaway a–c phase boundary. If solid phase explosive crystallization is suppressed by pre-annealing, then a liquid assisted runaway crystallization velocity of 220 cm/sec is observed, as well as a continuous furnace-like crystallization process at 250 cm/sec.

Crystallization Process of Fe Based Amorphous Alloys: Mechanical and Magnetic Properties

2002 ◽  
Vol 189 (3) ◽  
pp. 877-881 ◽  
Author(s):  
A. Saad ◽  
V. Cremaschi ◽  
J. Moya ◽  
B. Arcondo ◽  
H. Sirkin
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Crystallization Process
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