Questions and Answers
What is the main purpose of a creep test?
To apply a constant tensile stress to a specimen at a constant temperature and measure strain over time
What is one of the mechanisms of creep mentioned in the text?
Vacancies migrating within the material
Why are materials with high melting temperatures often selected for turbine engine blades?
To reduce the susceptibility to creep deformation at high temperatures
What is a characteristic of ceramics that provides resistance to deformation by creep?
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What is an example application where components experience creep phenomenon?
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What type of stress do power plant pipes and turbine engine blades experience?
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Why is it important to know the operating conditions of the system when selecting materials for an application?
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Which temperature range can polymers or tin-lead solder be susceptible to creep?
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What factor determines the rupture lifetime in a creep test?
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What is being measured in a typical creep test?
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What is creep in the context of materials science?
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At what temperature does creep become significant for a material?
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What is one possible consequence of creep failure?
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How does creep occur in the context of creep mechanisms?
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What renders a material useless in performing its intended function in the context of creep failure?
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When does creep failure occur?
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