Influence of Surface Modification of Granules of Powder Material on the Dynamics of Selective Laser Melting

2019 ◽  
Vol 11 ◽  
pp. 485-488
Author(s):  
Denis Kochetov ◽  
Anna Voznesenskaya ◽  
Alexey Zhdanov
Keyword(s):  
Surface Modification ◽  
Selective Laser Melting ◽  
Powder Material ◽  
Laser Melting

scholarly journals Surface modification of Ti-based alloy by selective laser melting of Ni-based superalloy powder

2020 ◽  
Vol 9 (4) ◽  
pp. 8796-8807 ◽  
Author(s):  
Sergey Konovalov ◽  
Kirill Osintsev ◽  
Anastasia Golubeva ◽  
Vitaly Smelov ◽  
Yurii Ivanov ◽  
...  
Keyword(s):  
Surface Modification ◽  
Selective Laser Melting ◽  
Laser Melting ◽  
Superalloy Powder

scholarly journals The Influence of Hybrid Surface Modification on the Selected Properties of CP Titanium Grade II Manufactured by Selective Laser Melting

Materials ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 2829
Author(s):  
Anna Woźniak ◽  
Marcin Adamiak ◽  
Grzegorz Chladek ◽  
Mirosław Bonek ◽  
Witold Walke ◽  
...  
Keyword(s):  
Surface Modification ◽  
Selective Laser Melting ◽  
Pure Titanium ◽  
Microscopic Investigation ◽  
The Body ◽  
Laser Melting ◽  
Initial State ◽  
Tin Coatings ◽  
Grade Ii ◽  
Titanium Grade

The human body is an extremely aggressive environment in terms of corrosion. Titanium and its alloys are one of the most popular biomaterials used for implant applications due to biocompatibility. However, every element introduced into the body is treated as a foreign body. The human body’s immune response may, therefore, lead to implant rejection and the need for reoperation. For this purpose, it seems important to carry out surface modifications by applying coatings and inter alia by texturing to implants. The objective of this paper is to investigate the effect of surface treatment on the chosen properties of the pure titanium (Grade II) samples obtained by selective laser melting (SLM) processing. The samples were divided into five groups: Initial state (after polishing), after surface modification by the physical vapour deposition (PVD) method—CrN and TiN coatings were deposited on the surface of the tested material, and after laser texturing. The paper presents the results of the microscopic investigation, chemical and phase compositions, and physicochemical and electrochemical properties of the tested samples. Based on the results obtained it can be concluded that the hybrid surface modification shows significant effects on the properties of the pure titanium. The samples with the textured PVD-deposited TiN coatings were characterized by favorable physicochemical properties and were the highest performing in terms of pitting corrosion resistance.

Studying of Microstructure and Properties of Selective Laser Melted Titanium-Based Alloy

2015 ◽  
Vol 1120-1121 ◽  
pp. 1269-1275
Author(s):  
Anatoly A. Popovich ◽  
Vadim Sh. Sufiiarov ◽  
Igor A. Polozov ◽  
Evgenii V. Borisov ◽  
Maxim Y. Maximov
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Phase Composition ◽  
Mechanical Behavior ◽  
Selective Laser Melting ◽  
Powder Material ◽  
Elevated Temperatures ◽  
Initial Powder ◽  
Laser Melting ◽  
Before And After

The article presents the results of selective laser melting of Ti-6Al-4V alloy. It was studied phase composition and microstructure of the initial powder material, the specimens manufactured by Selective Laser Melting and also the specimens after heat treatment. The effect of heat treatment on microstructure and mechanical properties of the specimens was shown. It was studied the mechanical behavior of the manufactured specimens before and after heat treatment at room and elevated temperatures as well. After heat treatment tests showed that the specimens have decent mechanical properties both at room and elevated temperatures.

scholarly journals Surface modification of Ti-6Al-4V alloys manufactured by selective laser melting: Microstructural and tribo-mechanical characterization

2018 ◽  
Vol 348 ◽  
pp. 31-40 ◽  
Author(s):  
Yadir Torres ◽  
Perla Sarria ◽  
Francisco José Gotor ◽  
Eliel Gutiérrez ◽  
Eduardo Peon ◽  
...  
Keyword(s):  
Surface Modification ◽  
Selective Laser Melting ◽  
Mechanical Characterization ◽  
Laser Melting

scholarly journals Investigation of the effect of HIP processing on the physical and mechanical characteristics of parts obtained by the SLM method

2021 ◽  
Vol 2077 (1) ◽  
pp. 012024
Author(s):  
A S Raznoschikov ◽  
A A Voznesenskaya ◽  
D A Kochuev ◽  
M N Gerke ◽  
R V Chkalov
Keyword(s):  
Selective Laser Melting ◽  
Powder Material ◽  
Mechanical Characteristics ◽  
Radiation Power ◽  
Hot Isostatic Pressing ◽  
Laser Melting ◽  
Isostatic Pressing ◽  
Before And After ◽  
Aisi 321 ◽  
Physical And Mechanical Characteristics

Abstract In this paper presents the results of studying the powder material AISI 321. Selective laser melting (SLM) of the samples was carried out in modes with a change in the radiation power. The subsequent processing of the samples by the method of hot isostatic pressing (HIP) was carried out. The roughness of the surfaces and the microhardness of the samples before and after the HIP were studied.

Formation of Structure in Titanium Lightweight Structures Made by Selective Laser Melting

2019 ◽  
Vol 946 ◽  
pp. 990-995 ◽  
Author(s):  
Evgenii Borisov ◽  
Anatoly Popovich ◽  
Vadim Sufiiarov ◽  
Igor Polozov ◽  
Alexey Orlov ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Grain Size ◽  
Selective Laser Melting ◽  
Powder Material ◽  
Mechanical Characteristics ◽  
Microstructural Analysis ◽  
Laser Melting ◽  
Lightweight Structures ◽  
Before And After ◽  
Different Parts

The results of the analysis of the plasma atomized powder material are shown. An analysis of the microstructure in lightweight constructions made of VT6 alloy by selective laser melting was carried out. The microstructure and mechanical characteristics of the obtained structures were studied before and after heat treatment. Measurement of grain size in the microstructural analysis gave a more complete picture of the state of the structure in different parts of the sample formed as a result of growing by selective laser melting, in a mesh and compact. In the course of the work, the peculiarities of the growth of grains in bars of the mesh construction are revealed depending on their location.

scholarly journals Investigation of absorption of laser radiation by copperand nickel-based powders to obtain gradient materials by selective laser melting

2019 ◽  
Vol 220 ◽  
pp. 03032
Author(s):  
Anna Voznesenskaya ◽  
Dmitriy Kochuev ◽  
Artem Raznoschikov ◽  
Andrey Kireev ◽  
Kirill Khorkov
Keyword(s):  
Laser Radiation ◽  
Selective Laser Melting ◽  
Powder Material ◽  
Measurement Methods ◽  
Powder Materials ◽  
Laser Melting ◽  
Incident Laser ◽  
Gradient Materials ◽  
Incident Laser Radiation

The absorption of laser radiation of powder materials based on copper and nickel is studied. The dependence of the temperature of the powder material on the power of the incident laser radiation is obtained. A comparison of the values obtained by different measurement methods is presented.

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