scholarly journals Inconel 625/TiB2 Metal Matrix Composites by Direct Laser Deposition

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 141 ◽  
Author(s):  
Vladimir Promakhov ◽  
Alexander Zhukov ◽  
Mansur Ziatdinov ◽  
Ilya Zhukov ◽  
Nikita Schulz ◽  
...  
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Laser Deposition ◽  
Inconel 625 ◽  
Matrix Composites ◽  
Direct Laser Deposition ◽  
Direct Laser ◽  
Inconel 625 Alloy ◽  
Manufacturing Technologies ◽  
Tib2 Particles

This work presents results in the field of synthesis of new metal matrix composites with matrix NiTi and particles TiB2, and their use as additives to fabricate metal matrix composites based on the Inconel 625 alloy. NiTi-TB2 powders were obtained using self-propagating high-temperature synthesis. Composite NiTi-TiB2 particles were spheroidized on a high-frequency induction plasmatron. Composite NiTi-TB2 particles were mixed with metallic Inconel 625 powder with particle sizes of 50–150 µm. We used direct laser deposition by means of mixture of powders to grow samples with different contents of ceramics in the metal matrix. The process of direct laser deposition during the experiment was investigated. We have determined the peculiarities of the formation of the structure in metal matrix composites with different contents of titanium diboride. We have demonstrated the possibility of using Direct Laser Deposition (DLD) for fabricating items from ceramic metal materials. We have determined promising fields of further research for the purpose of obtaining efficient metal matrix composites using additive manufacturing technologies.

Direct Laser Deposition Method of Multilayer Coating on High Manganese, Non-Magnetic Steel

2021 ◽  
Vol 1022 ◽  
pp. 97-104
Author(s):  
Dmitriy V. Masaylo ◽  
Sergei Igoshin ◽  
Alexey Orlov ◽  
Anatoly A. Popovich
Keyword(s):  
Multilayer Coating ◽  
Substrate Material ◽  
Laser Deposition ◽  
Inconel 625 ◽  
High Alloy ◽  
Direct Laser Deposition ◽  
Direct Laser ◽  
Inconel 625 Alloy ◽  
Super Alloy ◽  
Cladding Material

Metal structures, pipelines and dies are used for a long time wear out and deteriorate. At the end of the service life it is necessary to repair or replace the metal component. The article discusses the method of applying nickel super-alloy Inconel 625 by direct laser deposition on high-alloy austenitic Mn-Cr steel. The article discusses the method of applying nickel super-alloy Inconel 625 by direct laser deposition on high-alloy austenitic Mn-Cr steel. Inconel 625 alloy is used as a buffer layer or repair material. But there is a high probability of cracks in the cladding material and the substrate material when the DLD method is used. One of the frequent causes of these cracks is high tensile stresses and oxides. To eliminate defects, the substrate was heated with resistive heaters to 400 °C. The result was a defect-free adhesion of the cladding material and the substrate. The hardness of the substrate before and after heating has not changed (312 HV 0,5/10). After heating the hardness of the substrate in the heat-affected zone decreased by 14% and was equal to 267 HV 0,5/10. The hardness of the cladding decreased by 12% and was equal to 230 HV 0,5/10.

scholarly journals The Strength of Inconel 625, Manufactured by the Method of Direct Laser Deposition under Sub-Microsecond Load Duration

Metals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1796
Author(s):  
Vladimir Promakhov ◽  
Nikita Schulz ◽  
Alexander Vorozhtsov ◽  
Andrey Savinykh ◽  
Gennady Garkushin ◽  
...  
Keyword(s):  
Elastic Limit ◽  
Structural Parameters ◽  
Spall Strength ◽  
Laser Deposition ◽  
Inconel 625 ◽  
Chromium Alloy ◽  
Hugoniot Elastic Limit ◽  
Direct Laser Deposition ◽  
Direct Laser ◽  
Wave Profiles

This paper presents the results of measurements of the spall strength and elastic-plastic proper-ties, under dynamic and static loads, of the high-strength heat-resistant nickel-chromium alloy Inconel 625, obtained by the direct laser deposition method. The structural parameters of the obtained samples and the mechanical properties during static tests were studied. According to our information, anisotropy in the structural parameters operates primarily at the level of plastic deformation of alloys. Shock compression of the additive alloy Inconel 625 samples in the range of 6–18 GPa was carried out using a light-gas gun, both along and perpendicular to the direction of the deposition. The strength characteristics were determined from the analysis of the shock wave profiles, which were recorded using the VISAR laser velocimeter during the loading of samples. It was found that the value of the spall strength of additive samples does not depend on the direction of deposition, and the Hugoniot elastic limit of samples loaded perpendicular to the deposition direction is about ~10% higher. With an increase in the maximum compression stress, the material’s spall strength increases slightly, but for both types of samples, a slight decrease in the Hugoniot elastic limit was observed as the compression stresses increase. On the basis of the measured wave profiles, shock Hugoniots of the samples of the alloy Inconel 625, loaded both along and perpendicular to the direction of deposition, are constructed in this pressure range.

Deposition Behavior and Electrochemical Failure Mechanism of WC/SS316L Metal Matrix Composites Prepared by Supersonic Laser Deposition

2018 ◽  
Vol 45 (1) ◽  
pp. 0102001
Author(s):  
金琰 Jin Yan ◽  
李波 Li Bo ◽  
张欣 Zhang Xin ◽  
吴丽娟 Wu Lijuan ◽  
张群莉 Zhang Qunli ◽  
...  
Keyword(s):  
Metal Matrix Composites ◽  
Failure Mechanism ◽  
Metal Matrix ◽  
Laser Deposition ◽  
Matrix Composites ◽  
Deposition Behavior ◽  
Supersonic Laser Deposition

Quality Management of Metal Products Prepared by High-Speed Direct Laser Deposition Technology

2016 ◽  
Vol 684 ◽  
pp. 461-467 ◽  
Author(s):  
Vladimir Glukhov ◽  
Gleb Turichin ◽  
Olga G. Klimova-Korsmik ◽  
Evgeniy Zemlyakov ◽  
Konstantin Babkin
Keyword(s):  
Heat Treatment ◽  
High Speed ◽  
Laser Deposition ◽  
Inconel 625 ◽  
Material Structure ◽  
Influence Of Process Parameters ◽  
Direct Laser Deposition ◽  
Direct Laser ◽  
Metal Products ◽  
Deposition Technology

In this article the technology “high-speed direct laser deposition” is performed. Influence of process parameters on product properties and material structure was defined for Ni-based alloy Inconel 625. Developed technology provided the mechanic properties of products on the bottom level of rolled metal and allows avoid heat treatment and HIP in production process. Economic efficiency of this technology is demonstrated for main areas of industry.

Combustion Synthesis of TiB2 Particle Dispersed Metal Matrix Composites

2007 ◽  
Vol 539-543 ◽  
pp. 809-813 ◽  
Author(s):  
Kiyotaka Matsuura ◽  
Yuki Obara
Keyword(s):  
Combustion Synthesis ◽  
Metal Matrix Composites ◽  
Powder Mixture ◽  
Metal Matrix ◽  
Volume Fraction ◽  
Ceramic Particle ◽  
Tib2 Particle ◽  
Matrix Composites ◽  
X Ray Diffraction ◽  
Tib2 Particles

FeAl-TiB2 composites have been combustion synthesized from mixtures of Fe, Al, Ti and B powders. When the powder mixture was heated in vacuum to approximately 900 K, an abrupt increase in temperature was observed, indicating that the combustion synthesis reactions occurred in the powder mixture. X-ray diffraction analyses revealed that the combustion-synthesized sample consisted of only FeAl and TiB2. Metallographic investigations using a scanning electron microscope revealed that fine TiB2 particles were dispersed in FeAl matrix phase. As the volume fraction of the TiB2 particles increased from 0.3 to 0.8 by controlling the powder mixture composition, the average TiB2 particle size increased to 1 to 7 μm and the average Vickers hardness of the composites increased from 800 to 1600. This method has been applied to the fabrication of some other ceramic particle dispersed metal matrix composites such as Fe-TiC and FeAl-TiC systems.

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