Efimenko N. Scientific and technological bases of rare-earth metals usage in welding materials for improving structures efficiency

Українська версія

Thesis for the degree of Doctor of Science (DSc)

State registration number

0510U000489

Applicant for

Specialization

  • 05.03.06 - 3варювання та споріднені процеси і технології

21-05-2010

Specialized Academic Board

Д 12.52.01

Essay

A purpose - the scientific basis development of use of rare-earth metals for creation of weld's materials. An object - the structure's forming processes of weld with mikroadditives of rare-earth metals (REM).Article of research - REM influence's mechanisms over structure's forming, diffusive processes, mechanical and special properties. Methods - experimental research methods of structure's forming process. Novelty - complex researches of REM influence on the structural changes of welds were executed at first. Results - efficiency of use of yttrium was grounded scientifically; general principles of creation of weld materials with a rare-earth metals were offered; compositions of weld materials of different structural classes and purposes were worked up.

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