Page 14 - Automotive Aerospace

Faster, Further, and More Efficient

The combustion chambers and the turbine rotor blades and exaggeration to say that dramatic advances in these super alloys
stator vanes in the aircraft turbofan and other jet engines and in the manufacturing processes for high-temperature parts
operate in the severest of environments. Maximum temperatures have directly led to larger and faster aircraft with higher output
significantly exceed 1000ºC. The turbine inlet temperature may and better fuel efficiency.
be higher than 1500ºC in modern, large, high-performance jet The development of such materials demands the evaluation of
engines. their mechanical properties in the actual operating environment.
Therefore, super-heat-resisting alloys are the major materials Shimadzu supports such testing by combining a materials tester
used for such core components of jet engines. It is no with environment control equipment.

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The high-temperature testing system exploits the characteristics of
high-frequency induction heating for a range of high-temperature tests.
The types of testing performed include general high-temperature/low-cycle
fatigue testing; thermal fatigue testing with a chiller;
high-temperature/low-cycle testing, thermal fatigue testing, or simulated
thermal cycle testing in a vacuum or inert-gas atmosphere within an
atmosphere conditioning chamber; crack propagation testing or fracture
toughness testing on CT or CCT samples; superplastic deformation testing;
and creep testing.
High-Temperature Testing System Using High-Frequency Induction Heating g
High-Temperature Testing System Using High-Frequency Induction Heatin
Evaluating Creep Properties at 11600ºC
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Creep testing and stress rupture testing of materials at high temperatures
are extremely important methods for acquiring detailed data for
component design in the aerospace industry. Creep testing involves
applying a constant load to a material maintained at constant temperature
to deform the sample. The relationship between the deformation and time
is measured. Stress rupture testing measures the time to fracture of a
sample under constant load and temperature.
Data for measurement of the turbine blade service life can be acquired
from the creep and stress rupture data for the high-performance materials.
As a result, the turbine blade deformation rate can be predicted, allowing
the blades to be replaced before they contact the engine casing. This data
can be used to create a maintenance plan that requires turbine blade
replacement after a certain period of operation.
Creep Characteristics Evaluation Tester
Creep Characteristics Evaluation Tester
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