Factors in the design of high temperature materials, Mechanical Engineering

Assignment Help:

Q. Factors in the design of high temperature materials?

There is typically little correlation between room temperature strength and high temperature strength of creep-resistant materials. The design criteria for the ‘High Temperature' range, where a material's plastic properties predominate, are based on the allowable stresses for a specified creep rate.

Tests for measuring these properties may include creep, stress-rupture or creep-rupture tests. If only the rate of deformation is measured, it is considered a creep test. If only time to rupture is measured, it is a stress rupture test. If both the deformation and the time to rupture are measured, it is a creep rupture test.

The rate of deformation over a long period of time is referred to as the creep rate. The stress rupture test will typically be carried out at a higher load (therefore higher creep rate) than a creep test so that the time to failure can be completed within a reasonable period of time.


Related Discussions:- Factors in the design of high temperature materials

Theory of mechanics , analyze a six bar linkage to get the position, veloci...

analyze a six bar linkage to get the position, velocity and acceleration

Illustrates about the term rectangular footings, Illustrates about the term...

Illustrates about the term rectangular footings? RECTANGULAR FOOTINGS: The design of rectangular footings is similar to that of the square footings. The major difference is

Water overflow in the sink, Water flows into the sink shown in figure 5 at ...

Water flows into the sink shown in figure 5 at a flow rate of 8 L/min. If the drain is closed, the water will eventually flow through the overflow drain holes rather than over the

Drag link mechanism, why there is a different angular velocity in the two c...

why there is a different angular velocity in the two cranks of a drag link mechanism?

Value of the maximum shear stress , Value of the maximum shear stress: ...

Value of the maximum shear stress: Illustrates that for a given maximum shear stress the minimum diameter needed for a solid circular shaft to transmit P kW at N rpm may be ex

Relativity of simultaneity, Relativity of simultaneity Two events occur...

Relativity of simultaneity Two events occurring at different space co-ordinates x 1  and x 2  in an inertial frame S, are said to be simultaneous, if they occur at the same tim

Electrical system, Electrical System: Electrical system consists of a batt...

Electrical System: Electrical system consists of a battery, spark plug, lighting system, ignition system, charging system and electricity generator. These components of electrical

Evaluate the motion of the system, Evaluate the motion of the system: ...

Evaluate the motion of the system: If in above Example, the block A is resting on an inclined plane at 45 o to horizontal as illustrative in Figure, find out the motion of th

Define pattern draft or taper, Q. Define Pattern draft or taper? It is ...

Q. Define Pattern draft or taper? It is also termed as "draw". It is the taper placed on the pattern surface that are parallel to the direction in which the pattern is withdraw

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd