Contact fracture of rolling bodies of three-cone rock bits opened bearings in water environments

by Ye. I. Kryzhanivskyi, R. S. Yakym, Ye. Shmandrovskyi, Yu. D. Petryna
Published 2010

Contact durability of arm pins races of three-cone rock bits

by Yu. D. Petryna, I. S. Yakym, N. V. Kret, Yu. M. Nykyforchyn
Published 2015

The influence of alloying with rare earth metals on mechanical properties of 17H1S pipe steel

by Yu. Petryna, O. L. Kozak, B. R. Shuliar, Yu. D. Petryna, M. I. Hredil
Published 2012

Corrosion and corrosion-mechanical fracture of crude oil tank steel

by Yu. Petryna, V. M. Hohol, Yu. D. Petryna, O. I. Zvirko, Yu. M. Nykyforchyn
Published 2015