Comparative analysis of the crystallization mechanisms and kinetics in the Ti50Ni25Cu25 alloy amorphized by melt quenching or severe plastic deformation

2022 ◽  
Vol 141 ◽  
pp. 107372
Author(s):  
R.V. Sundeev ◽  
A.V. Shalimova ◽  
A.V. Krivoruchko ◽  
A.M. Glezer ◽  
A.A. Veligzhanin ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Comparative Analysis ◽  
Severe Plastic Deformation ◽  
Melt Quenching

Difference between local atomic structures of the amorphous Ti 2 NiCu alloy prepared by melt quenching and severe plastic deformation

2018 ◽  
Vol 214 ◽  
pp. 115-118 ◽  
Author(s):  
R.V. Sundeev ◽  
A.V. Shalimova ◽  
A.A. Veligzhanin ◽  
A.M. Glezer ◽  
Y.V. Zubavichus
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Melt Quenching ◽  
Atomic Structures

Effect of the High Pressure Torsion on Magnetic Properties of Amorphous Alloys

2010 ◽  
Vol 667-669 ◽  
pp. 1077-1082
Author(s):  
Alex M. Glezer ◽  
Margarita R. Plotnikova ◽  
Sergey V. Dobatkin ◽  
Nikolai S. Perov ◽  
Anna V. Shalimova
Keyword(s):  
Plastic Deformation ◽  
High Pressure ◽  
Magnetic Properties ◽  
Severe Plastic Deformation ◽  
Saturation Magnetization ◽  
Amorphous Alloys ◽  
Amorphous Matrix ◽  
High Pressure Torsion ◽  
Melt Quenching

The effect of severe plastic deformation in Bridgman’s chamber on magnetic properties of the amorphous alloys of metal-metalloid type Ni44Fe29Co15Si2B10, Fe50Ni33B17, Fe70Cr15B15 obtained by the melt quenching was studied. The substantial alteration of saturation magnetization depending on the number of ferromagnetic and antiferromagnetic components in the alloy was revealed. It was supposed that the internal separation into nanoscaled areas enriched and depleted by ferromagnetic components took place in the amorphous matrix under the action of severe plastic deformation.

Severe plastic deformation of Al-1%Cu Alloy processed by a Simple Cyclic Extrusion Compression technique

2018 ◽  
Vol 1 (1) ◽  
pp. 77-90
Author(s):  
Walaa Abdelaziem ◽  
Atef Hamada ◽  
Mohsen A. Hassan
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Deformation Behavior ◽  
Cast Alloy ◽  
Surface Hardness ◽  
Grain Structure ◽  
Compression Technique ◽  
Cu Alloy ◽  
Cyclic Extrusion Compression

Severe plastic deformation is an effective method for improving the mechanical properties of metallic alloys through promoting the grain structure. In the present work, simple cyclic extrusion compression technique (SCEC) has been developed for producing a fine structure of cast Al-1 wt. % Cu alloy and consequently enhancing the mechanical properties of the studied alloy. It was found that the grain structure was significantly reduced from 1500 µm to 100 µm after two passes of cyclic extrusion. The ultimate tensile strength and elongation to failure of the as-cast alloy were 110 MPa and 12 %, respectively. However, the corresponding mechanical properties of the two pass CEC deformed alloy are 275 MPa and 35%, respectively. These findings ensure that a significant improvement in the grain structure has been achieved. Also, cyclic extrusion deformation increased the surface hardness of the alloy by 49 % after two passes. FE-simulation model was adopted to simulate the deformation behavior of the material during the cyclic extrusion process using DEFORMTM-3D Ver11.0. The FE-results revealed that SCEC technique was able to impose severe plastic strains with the number of passes. The model was able to predict the damage, punch load, back pressure, and deformation behavior.

TECHNOLOGIES FOR MANUFACTURING NANOSTRUCTURED SURFACES

2020 ◽  
Author(s):  
Андрей Дмитриевич Бухтеев ◽  
Виктория Буянтуевна Бальжиева ◽  
Анна Романовна Тарасова ◽  
Фидан Гасанова ◽  
Светлана Викторовна Агасиева
Keyword(s):  
Plastic Deformation ◽  
Surface Modification ◽  
Severe Plastic Deformation ◽  
Pressing Pressure ◽  
Pressure Treatment ◽  
Structured Surfaces ◽  
Nanostructured Surfaces ◽  
Angular Pressing ◽  
Multilayer Composites ◽  
Compaction Of Powders

В данной статье рассматривается применение и технологии получения наноструктурированных поверхностей. Рассмотрены такие методы как компактирование порошков (изостатическое прессование, метод Гляйтера), интенсивная пластическая деформация (угловое кручение, равноканальное угловое прессование, обработка давлением многослойных композитов) и модификация поверхности (лазерная обработка, ионная бомбардировка). This article discusses the application and technology for obtaining nano-structured surfaces. Methods such as compaction of powders (isostatic pressing, Gleiter method), severe plastic deformation (angular torsion, equal-channel angular pressing, pressure treatment of multilayer composites) and surface modification (laser treatment, ion bombardment) are considered.

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