Hardening of leading edges of turbine blades by electrospark alloying

• Дата: 2019
• Автори: Kalinina, N.E., Hlushkova, D.B., Hrinchenko, O.D., Kalinin, V.T., Voronkov, A.I., Kostina, L.L., Nikitchenko, I.N., Nosova, T.V., Reznikov, A.A.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2019
• Назва видання: Вопросы атомной науки и техники
• Теми: Physics of radiotechnology and ion-plasma technologies
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/194944
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Hardening of leading edges of turbine blades by electrospark alloying / N.E. Kalinina, D.B. Hlushkova, O.D. Hrinchenko, V.T. Kalinin, A.I. Voronkov, L.L. Kostina, I.N. Nikitchenko, T.V. Nosova, A.A. Reznikov // Problems of atomic science and technology. — 2019. — № 2. — С. 151-154. — Бібліогр.: 13 назв. — англ.

With a purpose of creating anti-erosion protection on turbine rotor blades the experiments in electrospark alloying using electrodes made of different materials: Т15К6 hard alloy and 15Х11МФШ steel were conducted. Reduction of the roughness of a surface layer having a uniform thickness was achieved upon its hardening with a steel electrode. The electrospark alloying process was perfected. Tests of mechanical properties of blade samples hardened with steel revealed overmatch of GOST requirements for strength and ductility. Increasing of surface layer microhardness was also achieved. For anti-erosion protection of leading edges of the turbine rotor blades it is recommended to replace the applied electrode made of Т15 К6 alloy with the one made of 15Х11МФШ steel.