Simulation of Thermophysical Processes at Laser Welding of Alloys Containing Refractory Nanoparticles

Autor:	Lamei Cao, Anatoly N. Cherepanov, Guangxun Liu, Vasily P. Shapeev
Rok vydání:	2012
Předmět:	Materials science Butt welding Metallurgy Alloy technology industry and agriculture General Engineering chemistry.chemical_element Nanoparticle Laser beam welding Welding respiratory system engineering.material law.invention chemistry law Aluminium Weld pool engineering Crystallization
Zdroj:	Advances in Materials Physics and Chemistry. :270-273
ISSN:	2162-5328 2162-531X
DOI:	10.4236/ampc.2012.24b069
Popis:	Mathematical model is formulated for description of thermophysical processes at laser welding of metal plates for the case when modifying nanoparticles of refractory compounds (nanopowder inoculators – NPI) are introduced into the weld pool. Specially prepared nanoparticles of refractory compounds serve here as crystallization centers, i.e. in fact they are exogenous inoculants on which surface clusters are grouped. This can be used to control the melt crystallization process and formation of its structure, and, therefore, properties of the weld seam. As an example, calculation results of the butt welding of aluminum alloy and steel plates are presented. The results of calculation and experimental data comparison are shown.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9e68da0810938910224e4bcaaef25faa https://doi.org/10.4236/ampc.2012.24b069 Zobrazit plný text záznamu