scholarly journals Structure and properties of an Al alloy in as-cast state and after laser treatment

2016 ◽  
Vol 65 (2) ◽  
pp. 107 ◽  
Author(s):  
M Król ◽  
P Snopiński ◽  
B Tomiczek ◽  
T Tański ◽  
W Pakieła ◽  
...  
Keyword(s):  
Laser Treatment ◽  
Al Alloy ◽  
Structure And Properties ◽  
Cast State

Microstructural Changes of Welded Zn-AI Alloy

1994 ◽  
Vol 367 ◽  
Author(s):  
Yao Hua Zhu
Keyword(s):  
Phase Transformation ◽  
Early Stage ◽  
Dendritic Structure ◽  
Metastable Phases ◽  
Grain Structure ◽  
Al Alloy ◽  
Cast State ◽  
Microstructural Changes ◽  
Fine Grain ◽  
Ageing Processes

AbstractExtruded eutectoid Zn-Al alloy was welded by a melt of the same eutectoid alloy. Two different microstructures were observed in the joint part and the bulk of the welded alloy. Typical dendritic structure of as cast Zn-Al alloy was observed in the joint part of the welded alloy. The bulk ofthe welded Zn-Al alloy appeared as fine grain structure. Two different metastable phases η'T decomposed from η's of chilled as cast state and η'E of extruded state were found to be unstable during early stage of ageing. A four phase transformation occurred after the decompositions of these two metastable phases of η'T. Microstructures of both joint part and bulk of the welded alloy were investigated parallely during ageing processes.

Structure and properties of resistive thick films after laser treatment

2007 ◽  
Vol 43 (6) ◽  
pp. 843-850
Author(s):  
A. V. Paustovskii ◽  
B. M. Rud’ ◽  
V. E. Shelud’ko ◽  
E. Ya. Tel’nikov ◽  
V. V. Kremenitskii ◽  
...  
Keyword(s):  
Laser Treatment ◽  
Thick Films ◽  
Structure And Properties

Modeling of the Formation Process of the Coherent Intermetallides in Nickel Alloys during Laser Treatment

2019 ◽  
Vol 822 ◽  
pp. 438-444 ◽  
Author(s):  
Andrey V. Alekseev ◽  
Ekaterina A. Valdaitseva ◽  
Vladimir L. Aleksandrov
Keyword(s):  
Laser Treatment ◽  
Reaction Rate ◽  
Treatment Process ◽  
Reaction Rate Constant ◽  
Process Time ◽  
Al Alloy ◽  
Chemical Reaction Rate Constant ◽  
Intermetallic Inclusion ◽  
Laser Cladding Process ◽  
New Phase

A solution for new phase inclusion growth is suggested for the case of the Ni-based alloys. This solution takes into account a chemical composition of the alloy and conditions of the laser treatment process. A method for calculation of the chemical reaction rate constant is also suggested for the Ni3Al formation in the Ni-Al alloy. Modeling is fulfilled for the laser cladding process. Time dependences for the reacting component concentration is obtained as well as for intermetallic inclusion growth and thermal cycle.

Effect of Combined Rolling–ECAP on Ultrafine-Grained Structure and Properties in 6063 Al Alloy

2018 ◽  
Vol 28 (1) ◽  
pp. 200-210 ◽  
Author(s):  
Abdrakhman Naizabekov ◽  
Sergey Lezhnev ◽  
Evgeniy Panin ◽  
Irina Volokitina ◽  
Alexandr Arbuz ◽  
...  
Keyword(s):  
Al Alloy ◽  
Structure And Properties ◽  
Ultrafine Grained Structure ◽  
Ultrafine Grained ◽  
6063 Al Alloy

scholarly journals The Influence of Treatment Parameters on the Microstructure, Properties and Bend Angle of Laser Formed Construction Bars

2016 ◽  
Vol 61 (2) ◽  
pp. 1151-1156 ◽  
Author(s):  
P. Kurp ◽  
Z. Mucha ◽  
S. Tofil ◽  
K. Mulczyk
Keyword(s):  
Tensile Strength ◽  
Heat Source ◽  
Laser Treatment ◽  
Bend Angle ◽  
Structure And Properties

Abstract In this paper, the authors presented the research on laser formed construction bars made of C20 steel on the example of the T-shape. The CO2 TRUMPF TruFlow 6000 laser was used in the research. The influence of the laser treatment parameters (the power and speed of the heat source) on the volume of the bend angle, structure and properties of the elements (hardness and tensile strength) was examined. On the basis of the results obtained from the conducted experiments, the authors suggested a way of selecting treatment parameters so that the element should meet the strength assumptions at the allowable time of its implementation.

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