Özet:

As it is known, the mechanical behavior of materials changes with temperature. At higher temperatures, this behavior becomes even more important. The mechanical behavior of a material under high temperature, static or dynamic stresses can be determined by the creep test. Creep tests are long and costly. The cost here is both the testing machine and the operating cost of the instrument. To reduce the cost, a test device that can be made with lower budgets has been designed and manufactured. The construction of the creep test device is based on NPU65 profile and 32 mm diameter shafts. The furnace part is made of fire brick and refractory brick. The heating resistors are wrapped with 22 awg Kanthal A1 wire. Temperature control is provided by REX C100 PID controller and 70A solid state relay. The oven operates at a maximum of 1000 °C. The gripping jaws of the creep specimens are made of Inconel 718 super alloy. The test specimens were attached to the jaws with M12x1.75 right and left screw. A maximum load of 18 kN can be applied to the test sample on the testing machine. The elongation in the sample length is recorded with a digital comparator with 0.0001 mm accuracy and a creep graph is created.

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