Installation for mechanical tests of heat-resisting alloys under super-plasticity conditions

An mechanical test installation designed on the base of the P-5 serial machine to investigate heat-resisting alloys under superplasticity conditions is described. The range of the deformation velocity is from 0.1 to 1000 mm/min with accuracy not worse than 1%. Suggested is a specimen heating system with three-zone resistance furnace, three-step heat and automatic temperature control; the system provides at +-3 deg C temperature variations a 3 deg C gradient over 280-300 mm furnace length in the temperature range from 9O0 to - 1300 deg C when measuring with 0.05 % accuracy. A high-sensitive electrical strain dynamometer permits to register tensile forces within the limits from 0.1 to 500 kg with 0.5% accuracy