Yakovlev O. Rise of thermostabylity of graphitized steel for centrifugal casting moulds

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0408U004220

Thesis Registration Form

0408U004220.pdf

Applicant for

Specialization

  • 05.02.01 - Матеріалознавство

30-09-2008

Specialized Academic Board

Д 17.052.01

Zaporizhzhya National Technical University

Essay

The object is hypereutectoid graphitized steels; the aim is working out of a thermostable graphitized steel composition, which surpasses in main operational properties high - strength cast iron and known graphitized steels. Methods are mechanical and metallographic tests, recording of temperature fields, calculation of temperature stresses and indices of thermostability; the novelty - it was established, that thermal stresses on the working surface of ingots exceed the yield point and material of ingots works in conditions of low-cyclic fatique; results - the graphitized steels of grades 130CДTЛ and 130СНМЛ were worked out; using field are machine building and metallurgical plants.

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Files

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