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Home Material Sciences The Wear-Resistent and Heat-Resistent Co-Base Alloys

The Wear-Resistent and Heat-Resistent Co-Base Alloys


The problems of decreasing wear abrasion protection and strengthening of bandage shelf of blades gas turbine motors at high temperature and pressure in attack of combustibles are decided in Department of Phase equilibria of G.V.Kurdyumov Institute for Metals Physic NAS of Ukraine by working the HTN-61and HTN-62 alloys. It is possible to rise of work resource for gas turbine motors up 2000 hours for VGL-2, GS6U alloys tradition application to 6000 hours, thanks to high wear resistance and heat resistance of developed alloys. The high work characteristics of HTN- 61and HTN-2 alloys are determined by its eutectic structure with complex alloyed cobalt-base matrix and niobium refractory monocarbide plate-granular crystal inclusions. The high wear resistant is achieved by increasing volume part of monocarbide, and high heat-resistance – by complex alloyed of matrix.

Innovative Aspect and Main Advantages

high, stable wear resistance at temperature up 500° C to 1100° C at high pressure in attack of combustibles, what make sure the long time work (the intensity of wear is ten times as much at 1000°C then for VGL-2);

  • melting temperature is not below then 1300°C;
  • availabily production – casting without heat treatment;
  • structural and phase stability along working;
  • heat resistance for HTN-62 alloy is best then for HTN-61 with keep another properties;

The development of cast technology and alloys properties are continued.

Areas of Application

The HTN-61 and HTN-62 alloys are produced according to developed in Institute for Metal Physics NAS of Ukraine the technically condition “Cast bars of HTN-37, HTN-61, HTN-62 alloys” and are applied for strengthening and renewal of bandage shelf of the blades gas turbine motors D18Т, D-436T1, D436-148, AI222-25 for airplane АN-124, АN-225, Тu-334, Bе-200, АN-148, Yak-130.The alloys are developed for aero industry but its may be used by another range of mechanical engineering.

Stage of Development

The developments of the G.V.Kurdyumov Institute for Metal Physics of the NAS of Ukraine are protected by:

  • UA Patent “ The Cobalt-base Alloy” № 8240A;
  • UA Patent “ The Cobalt-base Alloy” № 49450.

Contact Details

G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine
Contact persons: Galina P. Dmitrieva, Tatyana S. Cherepova
Address: 36, Vernadsky Str, 03680, Kyiv, Ukraine
Tel./Fax: (+38 044) 424 1220
E-mail: cherepova _ This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Producer: ООО “METEMTEL”
Contact persons: Nicolay N. Syabro
Address: 216, Verchovnoi Radi b-r., 02094 Kyiv, Ukraine
Tel./Fax: (+38 050) 762 4356

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