Parshenko K. Influencing of remaining austenite and his alloying by nitrogen on wear resistance and longevity of steel of X12 in the conditions of rolling friction

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0409U001861

Thesis Registration Form

0409U001861.pdf

Applicant for

Specialization

  • 05.02.04 - Тертя та зношування в машинах

10-04-2009

Specialized Academic Board

Д70.052.02

Essay

It is discovered that the presence of remaining austenite in the structure of steel of Х12 substantially influences on its contact endurance at the action of the cyclic loadings. Than greater initial values of ability of materials to relaxation of microstresss and to the coefficient of dispersion of energy, the greater longevity of standards is at the rolling friction. Satiation of remaining relaxation by nitrogen after the optimum mode promotes the offered technology of nitrohardening in 4,5 times longevity of steel of Kh12 at the rolling friction comparatively with its value for this purpose of material without a satiation nitrogen at optimum maintenance of remaining austenite.

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