Severyn A. Development of technology for electron-beam melting of ingots on titanium aluminide microalloyed with boron and lanthanum

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0414U003103

Thesis Registration Form

0414U003103.pdf

Applicant for

Severyn Andrii Yuriyovich

Specialization

05.16.02 - Металургія чорних і кольорових металів та спеціальних сплавів

Date of defense

13-05-2014

Specialized Academic Board

Д 26.182.02

E.O.Paton Elektric Welding Institute National Academy of scinces of Ukraine

Essay

The thesis is devoted to development of technology for obtaining of ingots on alloys based on titanium aluminide doped by B and La elements by means of their introduction in the melt in composition of LaB6 compound. New melting scheme was proposed using which introduction of all refractory doping components of alloy is carried out at the first stage of ingot melting, and elements with high vapor pressure is to be added at the second stage. Mathematical model of evaporation of doping elements from the alloy was developed and dependencies of content of doping components of alloy on their initial quantity in the charge was derived, that allows predicting chemical composition of the ingot in advance. Introduction of boron and lanthanum in the alloy allowed increasing technological ductility of the material and carrying strain treatment of titanium aluminide alloy obtained by EBM method.

Thesis supervisor

Akhonin Sergey Vladimirovich

Official opponents

Ладохін Сергій Васильович
Давидов Сергій Іванович

Files

aref.doc

dis.doc

Similar theses

0424U000109

Kyrylo Sharandin

Development and implementation of a resource-saving technology for increasing the stability of the converter lining using magnesium materials based on domestic raw materials

0424U000108

Dmytro Riabyi

Stabilization of the outflow of a metal stream in the area between the tundish and the crystallizer and reducing its splashing by improving the operating conditions of the dosing nozzle

0523U100174

Igor V. Protokovilov

Electroslag remelting of high-reaction and precision metals and alloys with non-stationary modes of electric power supply and electromagnetic impact

0423U100114

Erokhin Oleksii H.

Production of microalloyed titanium alloys with oxygen and silicon by electron beam melting

0521U102005

Selegej Andrij M.

Development of scientific fundamentals for charging blast furnace burden with account for the particle sizes thereof